Hayter Mowers Lawn Mower T424 User Guide

T424

MOWER

CODE 953C

OPERATOR'S MANUAL

THIS MANUAL SHOULD BE REGARDED AS PART OF THE MACHINE, AS

IT GIVES ESSENTIAL INFORMATION REGARDING MACHINE SAFETY,

OPERATION, MAINTENANCE AND SPECIFICATIONS.

English Version

FROM SERIAL NO: 953C001001

Issue: 01.10.04

MANUAL PART NO: 953910 (REV.0.)

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ATTENTION

THIS SYMBOL MEANS

BE ALERT!

YOUR SAFETY IS INVOLVED

READ THIS MANUAL BEFORE USING THE T424 MOWER.

IT IS ESSENTIAL THAT OPERATORS STUDY IT FOR THEIR OWN SAFETY.

ALL OPERATORS SHOULD SEEK AND OBTAIN PROFESSIONAL AND

PRACTICAL INSTRUCTIONS ON THE SAFE USE OF THE MOWER. THESE

SERVICES ARE AVAILABLE THROUGH HAYTER LIMITED OR HAYTER APPROVED

COMMERCIAL DEALERS.

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1.4

CONTENTS

1.4

Page No.

CONTENTS

1.6 - 1.14

1.6

SAFETY PRECAUTIONS.

Training.

1.6 - 1.7

1.7 - 1.9

1.10

Preparation.

Operation.

Handling and storage of fluids.

Maintenance and storage.

Decals.

1.11

1.12 - 1.14

1.15 - 1.16

1.15

EC CONFORMITY INFORMATION.

Noise levels.

1.16

EC Declaration of Conformity.

INTRODUCTION.

SPECIFICATIONS.

Engine.

1.17

1.18 - 1.24

1.18

1.19

Transmission system.

Cutterhead drive system.

Cutterhead lift system and steering.

Hydraulic system.

1.19

1.20

1.21

Vehicle specifications.

Operator controls.

1.22

Instrumentation.

1.23

Weight and dimensions.

1.23

Recommended lubricants and hydraulic fluids.

Cutterheads.

1.24

1.25 - 1.44

1.25

OPERATING THE MOWER.

Safety notice.

1.25

Operator presence controls.

Identification of controls.

Braking system.

1.26

1.27

Throttle control.

1.27

Travel.

1.28

Work/Transport modes.

Transport latches.

1.28

1.29

Differential lock.

1.29

Travel control pedals.

Forward travel speed backstop lever.

Operator platform latching mechanism.

Adjustable steering column.

Operator seat.

1.30

1.31

1.32

1.33

Warning systems.

1.33

Audible warning horn.

Ignition key.

1.34

Engine pre-heat indicator light.

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1.5

CONTENTS

Continued.

Page No.

Fuel level gauge.

Hourmeter.

1.34

Transmission neutral indicator light.

Cutterhead drive switch indicator light.

Parking brake indicator light.

1.35

Hydraulic return filter indicator light.

Hydraulic transmission filter indicator light.

1.35

Transmission system ‘Work’ mode indicator light.

Cutterhead position control.

Dual lift configuration control.

Cutterhead drive engagement.

Weight transfer/traction assistance.

Starting the engine.

1.35

1.36

1.37

1.38

1.38 - 1.39

1.39

Stopping the engine.

General operating hints.

1.40

Unblocking cutting cylinders.

Cutterhead general information.

MK3 200mm Fixed Cutterhead.

MK3 254mm Fixed Cutterhead.

MK3 200mm Floating Cutterhead.

MAINTENANCE.

1.41

1.42

1.43

1.44

1.45 - 1.64

1.45 - 1.46

1.47

General safety and good practice.

Engine.

Running in period.

1.47

Running in period - at first 50 hours.

Daily and before use.

1.47 - 1.48

1.49 - 1.52

1.53 - 1.54

1.55

Every 50 hours.

Every 250 hours.

Every 500 hours.

1.56 - 1.58

1.59

Cutterhead cylinder to bottom blade adjustment.

Cutterhead backlapping.

1.60

Cutterhead grinding.

1.61

Cutterhead bottom blade replacement.

Raising the mower off the ground.

Towing the mower.

1.61

1.62

1.63 - 1.64

1.65 - 1.67

1.68 - 1.74

1.75 - 1.78

1.79 - 1.80

1.81 - 1.82

1.83

GRASS CUTTING FAULTS.

TROUBLE SHOOTING.

ELECTRICAL CIRCUIT DIAGRAM.

TRANSMISSION/BRAKE HYDRAULIC CIRCUIT.

HYDRAULIC CIRCUIT DIAGRAM.

WARRANTY.

NOTES.

1.84

CUSTOMER INFORMATION.

1.85

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1.6

SAFETY PRECAUTIONS

1.6

READ THIS MANUAL BEFORE USING THE T424 MOWER, IT IS ESSENTIAL THAT

OPERATORS STUDY IT FOR THEIR OWN SAFETY.

THE FOLLOWING PRECAUTIONS MUST BE TAKEN TO HELP PREVENT ACCIDENTS.

A CAREFUL OPERATOR WHO USES COMMON SENSE IS THE SAFEST OPERATOR.

TRAINING

Read the instructions carefully. Be familiar with the controls and the proper use of the equipment. Learn

how to stop the mower quickly in an emergency.

Never allow children or people unfamiliar with these instructions to use the mower. Local regulations

may restrict the age of the operator.

Never mow while people, especially children, or pets are nearby.

Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or

their property.

Do not carry passengers.

All drivers should seek and obtain professional and practical instruction. Such instruction should emphasise:

The need for care and concentration when working with this machine.

The need to slow down when making tight turning manoeuvres. Failure to take adequate care can affect

stability leading to loss of control of the machine particularly when operating in transport mode.

Control of a ride-on-machine sliding on a slope will not be regained by application of the brake.

The main reasons for loss of control are:

- Insufficient wheel grip.

- Being driven too fast.

- Inadequate braking.

- The type of machine is unsuitable for the task.

- Lack of awareness of the effect of ground conditions, especially slopes.

- Incorrect load distribution.

PREPARATION

Check that the machine complies with all applicable regulations, including those in force when used on

the public highway.

While mowing, always wear substantial footwear and long trousers. Do not operate the equipment when

barefoot or wearing open sandals. Eye protection should be worn.

Thoroughly inspect the area where the equipment is to be used and remove all objects which can be

thrown by the machine.

Never operate the machine without first checking that the operator platform latching mechanism is fully

engaged and in good working order, refer - ‘OPERATOR PLATFORM LATCHING MECHANISM’.

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1.7

SAFETY PRECAUTIONS

PREPARATION

Continued.

Ensure that the cutterheads are fully raised with the latches and safety locks engaged in position before

transporting the mower.

Replace faulty silencers.

Check the condition of the tyres and ensure that they are inflated to the correct pressures, refer -

SPECIFICATIONS.

This is particularly important if the machine is to be taken on the public highway.

Check that the mower is in good working order, paying particular attention to the brakes and steering.

Also ensure that the forward/reverse speed control pedals move freely to neutral when released.

Before use, always visually inspect to see that the blades, blade bolts and cutting cylinders are not worn

or damaged. Replace worn or damaged components.

Check the mower hydraulic system, particularly the hydraulic hoses, fittings and hose supports. Worn,

crushed or damaged hoses can burst, with risks to health and damage to the machine and surrounding

turf areas.

After refuelling and adding oil to the hydraulic oil tank ensure that the caps are replaced securely.

Check that all linkages, connections and pivot nuts are secure and that wheel nuts are torqued correctly,

refer - SPECIFICATIONS.

Before operating the machine, ensure that there are no foreign objects or liquids on the platform or ped-

als - ALWAYS KEEP THE OPERATOR PLATFORM CLEAR/CLEAN.

OPERATION

Do not operate the engine in a confined space where dangerous carbon monoxide fumes can collect.

Mow only in daylight or in good artificial light.

Before attempting to start the engine, engage the parking brake, disengage the cutterhead drive system

and ensure that the forward/reverse speed controls are in the neutral position.

Never operate the machine without first checking that the operator platform latching mechanism is fully

engaged and in good working order, refer - OPERATOR PLATFORM LATCHING MECHANISM.

Stored energy devices are charged when the outer wing units are in the transport position. Always oper-

ate the relevant lift controls to provide hydraulic support for the wing units suspensions before attempt-

ing to release the transport latches.

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1.8

SAFETY PRECAUTIONS

1.8

OPERATION

Continued.

Do not use on a slope of more than 19 degrees. Care should be taken when using the mower on any slope

where ground conditions are such that there may be a risk of the mower rolling over. The requirements

of SI 1998 No. 2306 “Provision and Use of Work Equipment Regulations” should be considered.

R.O.P.S (Roll Over Protective Structures) are available, refer to INTRODUCTION - Optional Extras.

Stability angles given are maximum figures and are for guidance only. Particular conditions such as wet

grass or uneven ground may not permit safe operation on the slope limits stated.

Remember there is no such thing as a "safe" slope. Travel on grass slopes requires particular care. To

guard against overturning or loss of traction when travelling or mowing on a slope:

Exercise extreme care when changing direction on a slope.

Do not stop or start suddenly.

Engage drive slowly.

Keep machine speed low.

Avoid tight turns.

Stay alert for humps, hollows and other hidden hazards.

Keep away from sharp inclines and steep drops.

A thorough risk assessment should be carried out by a competent

person before travelling or mowing on a slope.

Never park on a slope.

Ground level

3DA176

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1.9

SAFETY PRECAUTIONS

OPERATION

Continued.

Watch out for traffic when crossing or near roadways.

Use extreme caution when reversing.

Disengage the cutterhead drive system before crossing surfaces other than grass.

When using the machine, never direct the discharge of material towards bystanders or allow anyone

near the machine while in operation.

Never operate the mower with defective guards, shields or without safety protective devices in place

and in good working order.

Do not change the engine governor settings or overspeed the engine. Operating an engine at excessive

speed may increase the risk of personal injury.

Before leaving the operator's position:

- Disengage the drive to the cutterheads.

- Lift cutterheads to the transport position and securely lock the safety latches

or alternatively lower cutterheads to the ground.

- Change into neutral and set the parking brake.

- Stop the engine and remove the ignition key.

Engage the parking brake, disengage the drive to the cutterheads, stop the engine and remove ignition

key :

- Before releasing blockages.

- Before checking, cleaning or working on the mower.

- After striking a foreign object. Inspect the mower for damage and make

repairs before restarting and operating the equipment.

- If the machine starts to vibrate abnormally ( check immediately ).

- Before refuelling.

- Before making cutterhead adjustments.

Disengage the drive to the cutterheads when transporting or not in use.

Reduce the throttle setting during engine run - out.

Never work on the mower when the engine is running.

Always keep feet and hands well away from the cutting cylinders when making adjustments.

Never operate the mower without first checking that the operator platform is securely latched.

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1.10

SAFETY PRECAUTIONS

1.10

HANDLING AND STORAGE OF FLUIDS

Hydraulic Oil

Avoid contact with eyes and prolonged contact with skin.

Protective goggles should be worn when pouring.

Use of gloves or barrier cream is recommended.

Wash hands thoroughly after contact.

Store under cover, away from heat and sources of ignition.

Diesel Oil

Avoid skin and eye contact.

Wear impervious gloves when regular contact is likely and goggles when there is risk of splashing.

Wash hands thoroughly after contact.

Store in a cool dry well ventilated place away from heat and sources of ignition, in vessels specifi-

cally designed for storing fuel oils.

Lubricating Oil

Avoid skin and eye contact.

Wear impervious gloves when regular contact is likely and goggles when there is risk of splashing.

Wash hands thoroughly after contact.

Store in a cool dry well ventilated place away from heat and sources of ignition.

Anti- Freeze

Keep away from heat, sparks, and flames.

Avoid skin and eye contact and breathing vapours.

Store in a closed container in a cool dry well ventilated area.

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1.11

SAFETY PRECAUTIONS

MAINTENANCE AND STORAGE

Take care when rotating a cutting cylinder as this can cause other cylinders to rotate.

When the machine is to be parked, stored or left unattended, lift the cutterheads to the transport position

and engage the safety locks or lower the cutterheads to the ground.

Keep all nuts, bolts, and screws tight to be sure the equipment is in safe working condition.

Allow the engine to cool before storing in any enclosure.

To reduce the risk of fire, keep the engine, silencer, fuel tank and battery compartment free of grass,

leaves or excessive grease.

Frequently check fuel lines and fittings for cracks or leaks and replace if necessary.

Replace worn or damaged parts for safety.

Ensure that all safety decals are properly secured and in good condition.

If the fuel tank has to be drained, this should be done outdoors.

Be careful during adjustment of the machine to prevent entrapment of the fingers between moving blades

and fixed parts of the machine.

Never attempt to disconnect any part of the hydraulic system before de-pressurisation. This may be

achieved by lowering all cutterheads to the ground, stopping the engine and removing the ignition key.

Avoid skin or eye contact with hydraulic or diesel fluids. Wear protective clothing.

Leaking fluids under pressure can penetrate the skin or eyes, causing serious injury.

Always use a piece of cardboard or paper when searching for leaks.

Health and Safety at Work Act:

In accordance with section 6 of the Health and Safety at Work Act 1974, the T424 Turf Mower has been

designed and constructed so that, in so far as is reasonably practical, it will not endanger the safety and

health of those working with it. This is, however, subject to the machine being properly used and

maintained according to the conditions stated in this manual and elsewhere, which have been found

necessary as a result of the research and testing of Hayter Limited.

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1.12

SAFETY PRECAUTIONS

1.12

DECALS

Decal - Control Panel Part No: 994912

Location: Control Panel.

a) Ignition Switch

b) Engine Speed - Slow

c) Engine Speed - Fast

d) Parking Brake - Engage

h) Cutters - Off

i) Cutters - Forward

j) Horn

k) Cutters - Lift

e) Parking Brake - Disengage l) Cutters - Hold

f) Weight Transfer - Control m)Cutters - Drop/Float

g) Cutters - Reverse

n) Hour Meter

Decal - Inclines Part No: 924857 (1)

Location: Centre Platform.

a) Warning - Travel slowly when turning and on slopes

b) Warning - Maximum slope without ROPS

c) Warning - Seat belt must be worn with a ROPS fitted.

d) Caution

e) Read operators manual

0 - 19°

19°+

f) Stop engine/Remove ignition key before servicing or

maintenance

g) Beware of flying objects

h) Keep bystanders clear

Decal - Danger Latch Part No: 70-13-077

Location: LH / RH / Centre Arms

a) Caution

b) Stop engine/Remove ignition key before releasing or

operating safety latches

Decal - Diesel Part No: 70-13-078

Location: Fuel Tank

Diesel fuel only

IMPOR TANT / WICHTIG / BELANGRIJK

Decal - Transmission Oil Part No: 70-13-071

Location: Oil Filler Bracket mounted behind Fuel Tank.

a) Transmission oil

BEFORE USE : FILL MACHINE WITH RECOM-

MENDED OIL TO CORRECT LEVEL. FAILURE

DOSO WILL CAUSE SERIOUS DAMAGEANDIN-

VALIDATE WARRANTY .

AVANT L'UTILISA TION : IL EST IMPERATIF DE

REMPLIR LA TONDEUSE AVEC UNE HUILE

SPECIFIEE AU NIVEAU EXACT POUR NE PAS

L'ENDOMMAGERSERIEUSEMENT ET ANNULER

LAGARANTIE.

b) Read and understand the operators manual.

VOR DEM GEBRAUCH: FÜLLEN SIE DIE

MASCHINE MIT EMPFOHLENEM ÖL NACH,BIS

AUF DEN RICHTIGEN ST AND.

DIE

NICHTBEACHTUNG DIESER INSTRUKTIONEN

KANN ZU ERNSTHAFTEN SCHADEN F ÜHREN

UNDDABEI WIRD DIE GARANTIE UNGÜLTIG.

VOOR GEBRUIK: VUL MACHINE MET

VORRGESCHREVEN OLIE TOT HET JUISTE

NIVEAU. HET NIET VOLGEN VAN DEZE

INSTRUKTIE LEIDT

OT ERNSTIGE SCHADE EN

VER VAL VANDE GARANTIE.

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1.13

SAFETY PRECAUTIONS

DECALS

Continued.

Decal - Jacking / Support Point

Part No: 70-13-072

Location: Front Axle - 2 Points

Rear Towing Eye

Jacking and support point

Decal - Engine Fan / Radiator

Part No: 70-13-073

Location: Engine Fan Cowl

a) Danger of severing fingers

b) Caution

ONLY REMOVE RADIATOR CAP WHEN ENGINE IS COOL.

IL FAUT TOUJOURSATTENDRE LE REFROIDISSEMENT DU MOTEUR

AVANT DE RETIRER LE BOUCHON DU RADIATEUR.

VERWIJDER DE RADIATORDOP PAS NADAT DE MOTOR ISAFGEKOELD.

HEIZKORPERDECKELENTFERNEN ERST WENN DER MOTOR KUHLIST.

70-13-073 REV (.0.)

c) Warning - Hot surfaces

Decal - Hayter and Royal Warrant

Part No: 410087

Location: Platform, Front

Decal - Side LH

Part No: 953907

Location: Engine Cover LH/RH Side

Decal - Tyre Pressure

Part No. 950832

Location: LH/RH Chassis - 4 Places

a) Mowing

b) Road travel

0.7 BAR

10 PSI

1.4 BAR

20 PSI

950832 Rev.2

953876 REV.(0)

Decal - Diff Lock / Control Pedal

Part No: 953876

Location: Centre Platform

a) Differential lock

b) Depress to engage diff-lock

c) Release to dis-engage diff-lock

d) Reverse speed - directional control

e) Forward speed - directional control

{

Decal - Noise

Part No. 922854

Location: Base of Seat on GRP

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1.14

SAFETY PRECAUTIONS

1.14

DECALS

Continued.

Decal - Serial Number

Location: Rear Bulkhead

SPELLBROOK, BISHOP’S STORTFORD,

HERTS. CM23 4BU. ENGLAND.

CODE 953C

T424

- TURF MOWER

1750

2004

RPM 2800

kW 35.3

Serial No: 953C001001

105_dB

PREVENT PLATFORM DAMAGE !

ENGAGE PARKING BRAKE AND

DROP CUTTERHEADS BEFORE

RAISING/LOWERING PLATFORM.

Decal - Prevent Platform Damage

Part No. 924828

Location : Platform, Seatwell

POUR EVITER DES DOMMAGES

METTRE LE FREIN DE PARKING ET POSER

LES TETES DE COUPES AVANT DE

BOUGER LA PLATE-FORME.

SCHADEN VERMEIDEN

PARKBREMSE

FESTSETZEN UND DIE SCHNEIDEINHEITEN

HERUNTERLASSEN BEVOR DIE SITZ-

PLATTFORM GEKIPPT WIRD.

VOORKOM BESCHADIGING! ZET

MACHINE OP HANDREM EN LAAT DE

KOOIEN ZAKKEN, VOORDAT HET

BEDIENINGS PLATFORM NAAR VOREN

GEKANTELD OF TERUG GEPLAATST

WORDT.

924828 REV.0.

Decal - Warning Platform Latch

Part No. 924868

Location: Next to Platform Latch

Warning - Prevent Accidents: Ensure plat-

form is correctly seated and the latch is

fully locked before operating the machine.

924868 REV .0

DAILY MAINTENANCE

SEAT SWITCH

FUEL LEVEL

ENGINE OIL

FUEL

Decal - Maintenance T424

Part No. 953812

50 HOURS MAINTENANCE

CLEAN AND INSPECT THE MACHINE.

TYRES

FASTENERS

HOSE LINES

HYDRAULIC OIL

Location: Underside of Engine

Cover next to Latch.

AIR CLEANER

CUTTERHEADS

WHEEL NUT TORQUE

RADIATOR/SCREENS COOLANT LEVEL

30 40mm

FRONT: 200Nm

REAR: 54Nm

GREASE POINTS

DAILY (IF FITTED)

DAILY

50 HOURS (WEEKLY)

953812(Rev 1)

Decal - Warning Crush Hazard

Part No. 953829

Location: Platform LH/RH Sides

a) Warning of Cutterheads being Lowered

b) Do Not Stand in the Area Indicated

When the Cutterheads are being

Lowered or Raised

953829(Rev.1.)

Decal - Pedal Backstop

Part No. 953877

Location: Platform RH Side

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1.15

EC CONFORMITY INFORMATION

NOISE LEVELS

Operators Daily Personal Noise Exposure: HAYTER LIMITED have

no control over site conditions, duration of use, state of maintenance or

adjustment of the mower. All of these factors will affect the operator's

SPELLBROOK, BISHOP’S STORTFORD,

HERTS. CM23 4BU. ENGLAND.

CODE 953C

T424

daily personal noise exposure level - L

EP,d

- TURF MOWER

1750

Under typical working conditions operators could be exposed to a daily

personal noise exposure level in excess of 85 dB (A) L

2004

RPM 2800

kW 35.3

EP,d

Serial No: 953C001001

Sound pressure level:

The maximum sound pressure level at the operator's position is 85 dB (A)

measured in accordance with European Standard EN836.

Sound power level:

The maximum sound power level is 105 dB(A) measured in accordance

with EC Directive 2000/14/EC.

105_dB

If ear protection is required, ear protectors with good attenuation in the

63 - 8000 Hz frequency range should be used.

Employers of personnel using this machine are advised to read the 'Noise

at Work Regulations' as the operator's daily personal exposure level could

be above the 'First Action Level'.

Wear Hearing

Protection

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1.16

EC CONFORMITY INFORMATION

1.16

EC DECLARATION OF CONFORMITY

HAYTER LIMITED,

Spellbrook, Bishop’s Stortford, Herts CM23 4BU ENGLAND

declare that the lawnmower:

Type.

Model Name:

Model No:

Cutting Width:

Ride-on Cylinder Lawnmower

T424 Turf Mower

Code 953C

346 cm

Speed of rotation of cutting device:

Engine Manufacturer:

Speed of rotation of engine:

1050 rpm

Kubota

2800 rpm

Complies with the provisions of Directive: 98/37/EC Essential Health & Safety Requirements Relating to the

Design & Construction of Machinery and Safety Components, as amended and the regulations transposed into

national law.

Also Directive 89/336/EEC Electromagnetic Compatibility, as amended and the regulations transposed into

national law.

Also Directive 2000/14/EC Noise emission in the environment by equipment for use outdoors and the regula-

tions transposed into national law.

Procedure applied for the conformity assessment: ANNEX VI, procedure 1.

Notified Body: Sound Research Laboratories Ltd. Holbrook House, Little Waldingfield,

Sudbury, Suffolk,COL0 OTH ENGLAND

Notified body identification No: 1088

Measured sound power level:

Guaranteed sound power level:

104 dB(A)

105 dB(A)

Complies with harmonised standards: EN 292, EN 836 and EN ISO 14982.

Standards Used: EN292, EN836 and ENISO14982

Authorised Signature

Date: 01.10.04

Declaration done and

Technical Documentation Kept at:

S.A. Maryniak

(Technical Director)

HAYTER LIMITED,

Spellbrook, Bishop’s Stortford,

Herts CM23 4BU ENGLAND

VIBRATION INFORMATION

Lawnmower vibration information. Vibration at the operators contact position measured in accordance

with European Standards EN 836.

- steering wheel does not exceed 2.5ms^-2

- at seat does not exceed 0.5ms^-2

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1.17

INTRODUCTION

The Hayter T424 Mower is a diesel engine powered self propelled machine with hydraulic systems for ground

drive, cutterhead drive, cutterhead lift and steering. The machine operates in four wheel drive at all times, how-

ever, the transmission system can be operated in both ‘work’ and ‘transport’ modes. These modes can be select-

ed by the operator. In order to optimise machine performance and reduce transmission system wear it is advis-

able to operate the machine in the appropriate mode. ‘Work’ signifies cutting operations and ‘Transport’ signi-

fies travelling between work sites. A differential lock function may be selected.

The Hayter T424 Mower is a precision built machine designed solely for cutting grass and similar low lying

ground vegetation within the limitations stated in this manual. Use in any other way is considered as contrary

to the intended use. Compliance with and strict adherence to the conditions of operation, service and repair as

specified in this Operators Manual also constitute essential elements of the intended use. The way in which this

machine is operated and maintained will have a profound effect on its performance and reliability.

This manual contains advice on the Hayter T424 Mower which should be operated, serviced and repaired only by

persons who are familiar with its particular characteristics and who are acquainted with the relevant safety proce-

dures.

The safety precautions listed herein and all other generally recognised regulations on safety and all road traffic reg-

ulations must be observed at all times.

Any arbitrary modifications carried out to this machine may relieve Hayter Limited of liability for any resulting dam-

age or injury.

In the pursuit of continuous product development Hayter Limited reserve the right to alter specifications without

notice.

Cutterhead Variants: The Hayter T424 can be fitted with a range of cutterhead configurations and optional

extras:

Fixed Floating Heads with smooth

Heads or grooved front rollers

Cutterhead

Cylinder diameter Number of blades

200mm

254mm

4, 6, 8, 10.

4, 6

MK3 Cutterhead

✓

Optional Extras:

Beacon Kit - Amber flashing warning light.

Lighting Kit - Complies with EC traffic regulations.

R.O.P.S ( Roll Over Protective Structure ) 2 post design.

Cab R.O.P.S. - Full weather protection and roll - over protection.

We recommend the fitting of a Hayter approved R.O.P.S only, to increase operator safety in the event of

a machine rolling over.

Note: with a R.O.P.S. fitted stability angle is decreased to 14 degrees, due to the higher centre of gravity

in the machine

Left and Right: Throughout this manual the terms 'Left' and 'Right' refer to the machine when looking in the

direction of forward travel.

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1.18

SPECIFICATIONS

1.18

SPECIFICATIONS

ALL FIGURES ARE NOMINALLY QUOTED AT THE RATED ENGINE SPEED OF 2800 RPM

UNLESS OTHERWISE STATED.

ENGINE

Kubota V2203 Diesel.

4 Cylinders in line.

Type:

47.3hp (35.3 kw) @ 2800 RPM.

DIN 70020.

Power Rating:

Capacity:

Air Cleaner:

2197 cc.

Clean air drawn through screened air intake in-front of

radiator via a cyclonic air cleaner with built in pre-cleaner.

Water-Cooled.

Cooling System:

12V. 480 Amps S.A.E.

40 Amps.

Battery:

Alternator:

Starter:

1.4 KW Electric.

Glow Plug.

Cold Starting:

Idle Speed:

Fuel Type:

1250( 50) R.P.M.

Diesel.

Fuel Tank Capacity

70 Litres

IMPORTANT: PREVENT DAMAGE - for further information regarding the engine, refer to -

ENGINE MANUAL .

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1.19

SPECIFICATIONS

TRANSMISSION SYSTEM

Drive Type:

Pump:

Hydraulic.

Variable displacement hydraulic piston pump with integral charge

pump servo assisted.

Wheel Motors:

Front Axle - ‘Twin Lock’ Radial piston, fixed displacement, with

integral disc brake (pressure released).

Rear Axle - Radial piston, fixed displacement.

Differential Lock:

Drive:

Electro - hydraulic control valve with pedal control (only avail-

able in ‘Work’ mode).

Four wheel drive in ‘Work’ and ‘Transport’ modes.

Relief Valve Setting:

Main service relief 350 bar (5075 psi) differential.

Charge pressure relief 29 bar (421 psi) differential.

CUTTERHEAD DRIVE SYSTEM

Hydraulic.

Drive Type:

Tandem hydraulic gear type.

Pump:

31 Litres per minute. (each circuit)

Delivery Rate:

Cutterhead Motors:

Hydraulic gear type, reversible, pressure balanced with integral

differential pressure sensing relief check valve. Direct drive.

Electro-hydraulic.

Automatic diverter valve safety cut-off.

Control:

250 bar (3625 psi) differential.

Relief Valve Settings:

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1.20

SPECIFICATIONS

1.20

CUTTERHEAD LIFT SYSTEM AND STEERING

Hydraulic.

Drive Type:

Pump:

Hydraulic gear pump with integral relief valve.

11 Litres per minute.

Delivery Rate:

Steering:

Power beyond hydrostatic steering valve with priority flow to

steering and auxiliary flow to cutterhead lift system. Manual

emergency steering.

Mechanical-hydraulic.

Cutterhead Lift Control:

Wing Units:

Mechanical spring power assistance to lower.

105 bar (1522 psi).

Relief Valve:

Variable hydraulic applied weight transfer acting on all

cutterheads.

Weight Transfer:

HYDRAULIC SYSTEM

Hydraulic Oil Type:

Refer - RECOMMENDED LUBRICANTS

AND HYDRAULIC FLUIDS.

Capacity:

77 Litres.

Cooling:

Forced air finned tube oil cooler.

125 micron no bypass mesh filter.

10 micron with 2 bar (29 psi) bypass check valve.

Suction Line Filtration:

Return line Filtration:

Transmission Filtration:

10 micron no bypass pressure filter.

Cleanliness Level:

ISO Code 18/13 or better (ISO 4406)

1300 - 2500 Particles/ml<15μ

40 - 80 Particles/ml>15μ

95 C

Maximum Oil Temperature:

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1.21

SPECIFICATIONS

VEHICLE SPECIFICATIONS

Travel Speed:

0-25 km/h (0-15 mph) forward.

0-11 km/h (0-7 mph) reverse.

Tyres

Tyre Type

Recommended Tyre Pressures

Turf Conditions

Road Conditions

Max Pressure

Front axle

Rear axle

26 x 12 - 12 4 ply

Trelleborg turf pattern.

1.7 bar

(25 psi)

1.4 bar

(20 psi)

0.7 bar

(10 psi )

20x10.0-8 4 ply

Dico turf pattern.

1.7 bar

(25 psi)

1.4 bar

(20 psi)

0.7 bar

(10 psi).

Wheel Nut Torque Setting: Front axle

200Nm

54Nm

Rear axle

Service Brakes: Closed loop hydrostatic service braking operating on front wheels only.

Parking Brake: Lever operated oil immersed disc brakes on front wheels only. Pressurised hydraulic oil

release with mechanical override for emergency towing purposes.

Ground Clearance: 180mm at 13mm cut height and with cutterheads raised.

Steering: Hydrostatic rear wheel steering, emergency manual steering.

Features:

Tilting operator platform.

Lockable engine cover.

Adjustable suspension seat with folding arms.

Adjustable steering column.

Cutterhead parking latches with safety locks.

Backlapping facility.

Differential lock.

Engine coolant and hydraulic oil overheat audible warning (horn).

Variable cutterhead weight transfer/traction assistance.

Four wheel drive in ‘Work’ and ‘Transport’ modes.

Hydraulic oil filter blocked telltales on control panel.

Wing arm breakback.

Safety Features:

Neutral start interlock on transmission pump, parking brake and

cutterhead drive switch.

Operator presence control (seat switch).

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1.22

SPECIFICATIONS

1.22

OPERATOR CONTROLS

Steering:

Automotive padded steering wheel with adjustable steering

column.

Cylinder Drive:

Electrical switch (forward - off - reverse).

Hand operated lever.

Engine Speed:

Parking Brake:

Hand operated lever.

Forward and Reverse:

Ignition:

Separate foot operated pedals.

Key start, shut - off and engine preheat.

Foot pedal.

Differential Lock:

‘Work’ or ‘Transport’ modes:

Cutterhead Position:

Cutterhead Lift Configuration:

Horn:

Electrical Switch.

Hand operated lever.

Electrical Switch (Two Positions).

Button switch.

Weight Transfer:

Hand wheel.

INSTRUMENTATION

Warning Lights:

Engine oil pressure.

Battery charge.

Engine coolant temperature.

Hydraulic transmission oil temperature.

Gauges:

Digital hour meter.

Fuel level.

Hydraulic oil level sight glass.

Indicator Lights:

Engine pre-heat.

Hydraulic return filter blocked.

Hydraulic transmission filter blocked.

Cutterdeck drive switch off.

Parking brake engaged.

Transmission neutral.

‘Work’ mode active.

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1.23

SPECIFICATIONS

WEIGHT AND DIMENSIONS

Wheel Base:

1610 mm.

Working Width:

Cutting Width:

3640 mm.

3460 mm.

Transport Width:

Overall Length:

Overall Height:

Approx. Working Weight:

1850 mm at 13mm height of cut.

2930 mm.

1570 mm.

1800 kg less operator, no options fitted.

(The exact weight depends on the cutterhead configuration).

RECOMMENDED LUBRICANTS AND HYDRAULIC FLUIDS

Grease Points: A good quality medium grease.

Engine: Refer - ENGINE OPERATORS MANUAL.

Hydraulic System:

Ambient Temperature Range

0 - 30^OC (32 - 86^OF)

15 - 40 ^OC (59 - 104^OF)

I S O viscosity grade

46 hydraulic oil.

I S O viscosity grade

68 hydraulic oil.

Should you be in any doubt please contact your Hayter dealer. Using incorrect grades will cause

premature wear of hydraulic components and invalidate warranty.

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1.24

SPECIFICATIONS

1.24

CUTTERHEADS

MK3 200mm Cutterhead

762 mm.

MK3 254mm Cutterhead

Cutting Width:

762 mm.

Cylinder Diameter:

Cylinder Speed:

200 mm.

254 mm.

1050 rpm approx.

12 - 80 mm.

4, 6, 8, 10

1050 rpm approx.

Height of Cut:

12 - 80 mm.

Number of Blades:

Smooth Rear Roller:

Smooth Front Roller:

Grooved Front Roller:

Configuration:

4, 6

Standard.

Optional.

Fixed / Floating.

Fixed.

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1.25

OPERATING THE MOWER

SAFETY NOTICE

WARNING: PREVENT ACCIDENTS - Before operating the mower it is essential that;

- The operator reads and understands this manual.

- The operator platform latching mechanism is fully engaged and in good work-

ing order, refer - ‘OPERATOR PLATFORM LATCHING MECHANISM’.

- The daily maintenance checks have been properly carried out and the turf

mower is in good working order.

- The operator should wear safety clothing and eye protection. Failure to do so

could result in risk to health and safety.

- The area where the equipment is to be used is inspected and all objects which

may be thrown by the machine are removed.

Operate safely on slopes;

It is essential to follow safe working practices when working on slopes. In

order to avoid potentially hazardous situations, it is essential that the operator

understands and observes the relevant safety precautions listed in this manual,

refer - ‘SAFETY PRECAUTIONS’.

OPERATOR PRESENCE CONTROLS

Cutting Cylinder Drive Lockout: Drive to the cutting cylinders is only possible when the operator is

seated. If the operator raises off the seat for a period of more than one second, a switch is activated and

drive to the cutting cylinders is automatically disengaged. To re-engage drive to the cutting cylinders, the

operator must return to the seat, then operate the cutterhead drive switch to the ‘OFF’ position before

moving it back to the ‘ON’ position. If the operator rises off the seat for a brief moment during normal

work, drive to the cutting cylinders is not affected.

The engine can only be started with the cutterhead drive switch in the ‘OFF’ position.

Engine Start Lockout: The engine can only be started when the forward/reverse travel pedal is released

to the 'NEUTRAL' position, the cutterhead drive switch is in the ‘OFF’ position and the parking brake is

engaged. When these circumstances are satisfied, switches are activated permitting the engine to be start-

ed.

Engine Run Interlock: Once the engine is started the operator must be seated before the parking brake is

released for the engine to continue to run.

With the engine running and the machine moving with the travel pedal depressed, the engine will contin-

ue to run when the operator rises from the seat. If the travel pedal is then allowed to return to neutral the

engine will cut out.

WARNING: PREVENT ACCIDENTS - Do not operate the turf mower if the operator presence

controls are defective in any way. ALWAYS replace faulty parts and check that they function

correctly before operating the mower.

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1.26

OPERATING THE MOWER

1.26

IDENTIFICATION OF CONTROLS

1. Parking brake lever.

2. Lighting switch

(supplied with lighting kit).

3. Warning beacon switch

(supplied with beacon kit).

4. Hazard warning switch

(supplied with lighting kit).

5. Cutterhead position controls.

6. Throttle control lever.

7. Ignition key.

8. Cutterhead drive switch.

9. Dip beam / main beam light switch

(supplied with lighting kit).

10. Direction indicator switch

(supplied with lighting kit).

11. Horn button.

12. Transmission oil filter indicator.

13. Oil pressure indicator.

14. Transmission temperature indicator.

15. Return oil filter indicator.

16. Battery warning indicator.

17. Engine temperature warning indicator.

18. Glow plug indicator.

4A953B01A

19. Cutterhead drive off indicator.

20. Parking brake indicator.

21. Transmission neutral indicator.

22. Weight transfer control.

23. ‘Work/Transport’ mode switch.

24. Centre cutterhead transport latch.

25. LH front cutterhead transport latch.

26. RH front cutterhead transport latch.

27. Centre cutterhead transport latch.

28. LH wing unit transport latch.

29. RH wing unit transport latch.

30. Differential lock pedal.

31.Dual lift configuration switch.

32. Wash / wipe switch

(supplied with cab kit).

33. Forward travel pedal.

34. Reverse travel pedal

35. Forward travel speed backstop lever.

36. Forward travel speed backstop cam.

37. Hour Meter

1D953S01A

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1.27

OPERATING THE MOWER

BRAKING SYSTEM

Parking Brake Engaged

Parking Brake : Move the parking brake lever to its rear position to engage

the parking brake. Do not operate the mower with the parking brake engaged.

WARNING : PREVENT ACCIDENTS - The parking brake operates on the

front wheels only. Do not park the mower on a slope.

Service brakes : Service braking is achieved by the hydraulic transmission system. When the forward

or reverse travel pedals are released or the engine speed reduced, service braking becomes effective and

travel speed is automatically reduced. To increase the braking effect, push the transmission pedals into

the neutral position.

WARNING : PREVENT ACCIDENTS - The service braking system will not hold the mower at a

standstill. ALWAYS ensure the parking brake is engaged to park the mower at a standstill.

Emergency Braking : In the event of service brake failure, switch off the

ignition to bring the mower to a standstill.

Parking Brake Engaged

ing system. Remain seated and hold on to the steering wheel to prevent ejection from the mower

caused by the front wheel brakes being applied suddenly when travelling.

WARNING: PREVENT ACCIDENTS - Take care when operating the brak-

THROTTLE CONTROL

Operate the throttle control in a forward direction to increase engine speed.

Engine Speed

Fast

Engine Speed

Slow

Operate the throttle control in a rearward direction to reduce engine speed.

Note that the engine speed dictates the speed of the other functions, i.e. travel,

cutting cylinder, position controls.

TRAVEL

Forward travel: Depress the forward travel pedal to increase forward travel

speed. Release the pedal to reduce speed.

Reverse travel: Depress the reverse travel pedal to increase reverse travel

speed. Release the pedal to reduce speed.

Stop (Neutral): Release the forward and reverse travel pedals.

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1.28

OPERATING THE MOWER

1.28

WORK/TRANSPORT MODES

WARNING : PREVENT ACCIDENTS - Ensure that the mode elected is appropriate to the mode of

operation of the machine.

Select ‘Work’ mode when operating the mower in conditions of poor traction when maximum tractive per-

formance is required. Selecting ‘Work’ mode will enable the use of the differential lock.

Select ‘Transport’ mode when operating the mower in conditions of good traction. For example when trav-

elling on the public highway or mowing large, level, open areas. Selecting ‘Transport’ mode in these condi-

tions will reduce transmission system wear and tear.

Differential lock is not available for use when ‘Transport’ mode is selected.

1. Transport Mode

2. Work Mode

TRANSPORT LATCHES

WARNING : PREVENT ACCIDENTS - ALWAYS raise the

cutterheads to the transport position and secure with the transport

latches and safety locks when travelling between work areas.

Front and Wing cutterhead transport latches:

Centre cutterhead transport latch:

WARNING : PREVENT ACCIDENTS - Stored energy devices are

charged when the outer wing units are in the transport position.

Always operate the relevant lift controls to provide hydraulic support

for the cutterhead suspensions before attempting to release the trans-

port latches.

1D924P07A

1. Transport latch.

2. Safety lock.

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1.29

OPERATING THE MOWER

DIFFERENTIAL LOCK

WARNING : PREVENT ACCIDENTS - Do not engage the

differential lock at high speed. The turning circle will increase with

the differential lock engaged.

The differential lock is effective only when ‘Work’ mode is selected.

The differential lock operates in both ‘forwards’ and ‘reverse’ and can be

engaged whilst the turf mower is travelling slowly. Engage the

differential lock to prevent excessive wheel spin when the drive wheels

lose traction. Engine power demand increases when the differential lock

is engaged. Prevent excessive power requirements by operating with

differential lock at SLOW speed.

Engaging differential lock: Depress the differential lock pedal.

Disengaging differential lock: Release the differential lock pedal.

TRAVEL CONTROL PEDALS

WARNING: PREVENT ACCIDENTS - Ensure that the trans-

mission control cable is securely fastened to the travel control

pedal mechanism. Ensure that both the cable and pedals artic-

ulate freely through their full range of travel and that the

mechanism freely returns to neutral when released.

WARNING: PREVENT ACCIDENTS - Ensure that the con-

trol cable is correctly routed underneath the operator platform

such that it is clear of any obstructions and impediments to its

operation.

This is of particular importance after the platform has been

opened and subsequently closed following inspection mainte-

nance operations.

Before operating the machine, ensure that there are no foreign

objects or liquids on the platform or pedals - ALWAYS KEEP

THE OPERATOR PLATFORM CLEAR/CLEAN.

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1.30

OPERATING THE MOWER

1.30

FORWARD TRAVEL SPEED BACKSTOP LEVER

The backstop lever can be used to limit the move-

ment of the forward pedal for accurate forward trav-

el speed, and the clip rate required.

Operate the lever in a forward direction to increase

the travel speed setting and in a rearward direction

to decrease.

Note: This is not a cruise control device. Releasing

the forward travel pedal will allow it to return to

neutral.

1D953S07A

OPERATOR PLATFORM LATCHING MECHANISM

WARNING: PREVENT ACCIDENTS - Never operate the mower

without first checking that the operator platform latching mechanism

is fully engaged and in good working order. Check behind the seat and

ensure that the top of the platform is flush with the top of the fuel tank.

Also check beneath the tool tray and ensure that the release lever is

padlocked in the correct position.

IMPORTANT: PREVENT DAMAGE - Engage the parking brake and

lower the cutterheads to the ground. Remove ignition key and close

ignition cover before raising or lowering the platform.

924868 REV .0

Releasing the platform: Release and remove the tool tray from the left hand side of the platform.

Release the padlock securing the locking latch handle with the key provided. Move the locking latch

handle towards the front of the mower (position A) until the latch hooks clear the locking bar and raise

the platform. The gas spring will provide assistance.

Securing the platform: Lower the platform carefully. The gas spring will provide assistance. Move the

locking latch handle towards the front of the mower (position A) as the platform nears the fully lowered

position. This will ensure that the latch hooks clear the locking bar. Fully lower the platform and move

the locking handle towards the rear of the mower (position B) until the latch hooks fully engage the

locking bar. Replace the padlock in order to secure the locking latch handle in place.

1. Tool tray

2. Locking latch handle

3. Padlock

A. Release

B. Lock

3D924S004A

3D924S002A

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1.31

OPERATING THE MOWER

ADJUSTABLE STEERING COLUMN

WARNING: PREVENT ACCIDENTS - Before operating the mower, ensure that the steering

column adjuster mechanism is in good working order and that the steering wheel is locked securely

in position.

WARNING: PREVENT ACCIDENTS - Adjustment of the steering wheel and steering column

should only be carried out when the mower is at a standstill with the parking brake engaged.

Adjusting the angle of inclination of the steering wheel: Move lever ‘A’

downwards to adjust the angle of steering wheel. Release the lever to lock

the steering wheel in position.

1D950R58

Adjusting the length of the steering column: Move the lever ‘A’ upwards

to adjust the length of the steering column. Release the lever to lock the

steering column in position.

1D950R59

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1.32

OPERATING THE MOWER

1.32

OPERATOR SEAT

WARNING: PREVENT ACCIDENTS - Before operating the mower ensure that the operator seat

mechanisms are in good working order and that the seat is locked securely in position.

WARNING: PREVENT ACCIDENTS - Adjustment of the seat mechanisms should only be carried

out when the mower is at a standstill with the parking brake engaged.

Fore/Aft Adjustment: Move lever ‘B’ upwards to adjust the Fore/Aft posi-

tion of the seat. Release the lever to lock the seat in position.

1D924T3

Operator weight adjustment: Rotate handle ‘C’ clockwise as shown to

increase suspension stiffness and counter-clockwise to decrease. Dial ‘D’

indicates when the optimum suspension adjustment has been set according

to operator weight (kg).

CCW

1D924T4

Height adjustment: Manually lift the seat for incremental height adjustment.

To lower lift the seat to beyond its highest setting, then allow it to drop to the

lowest setting.

1D924T5

Backrest adjustment: Pull handle ‘E’ outwards to adjust the seat backrest

angle. Release the handle to lock the seat backrest in position.

1D924T6

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1.33

OPERATING THE MOWER

WARNING SYSTEMS

Engine coolant overheating warning : The engine coolant warning

light illuminates and the horn is actuated.

Hydraulic oil overheating warning : The hydraulic oil warning light

illuminates and the horn is actuated when the hydraulic oil in the reser-

voir exceeds 95˚C approx.

Low battery charge warning : The battery charge warning light illuminates.

Low engine oil pressure warning light : The engine oil pressure warning

light illuminates.

AUDIBLE WARNING HORN

Depress the horn button to provide an audible warning.

IMPORTANT : PREVENT DAMAGE - The horn is automatically

actuated when an engine coolant or hydraulic oil overheat condition

occurs. STOP the engine immediately and effect remedial action

before restarting.

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1.34

OPERATING THE MOWER

1.34

IGNITION KEY

0 = Engine off.

III

I = Engine run / Auxiliary on.

II = Engine pre-heat.

III = Engine start.

WARNING : PREVENT ACCIDENTS - Always remove the ignition key when the mower is not in

use.

IMPORTANT : PREVENT DAMAGE - Always fit the protective cap when the ignition key is

removed to prevent ingress of dirt and moisture from damaging the mechanism.

ENGINE PRE-HEAT INDICATOR LIGHT

Turn the ignition key to position II. The engine pre-heat indicator light

will illuminate. When the correct pre-heat temperature is achieved, the

indicator light will switch off. When this condition is achieved, turn the

ignition key to position III to start the engine.

WS044

IMPORTANT: PREVENT DAMAGE - Attempting to start a cold

engine before the pre-heat indicator light switches off can cause

unnecessary wear to the battery.

FUEL LEVEL GAUGE

FUEL

Displays fuel tank level.

WS023

E = Empty.

F = Full.

HOURMETER

Displays engine running hours.

3 4 5 5 9

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1.35

OPERATING THE MOWER

TRANSMISSION NEUTRAL INDICATOR LIGHT

Illuminates when the travel control pedal is in the

neutral position and the ignition key is turned to position ‘I’.

Note: The parking brake must be engaged for the transmission neutral indicator light

to illuminate.

WS041

CUTTERHEAD DRIVE SWITCH INDICATOR LIGHT

Illuminates when the cutterhead drive switch is in the ‘off’ position and the ignition

key is turned to position ‘I’.

WS046

PARKING BRAKE INDICATOR LIGHT

Illuminates when the parking brake is engaged and the ignition key is turned to posi-

tion ’I’.

WS045

HYDRAULIC RETURN FILTER INDICATOR LIGHT

Illuminates when the return filter element is blocked.

Note: The engine must be running for the hydraulic return filter indicator light

to illuminate. The indicator light may illuminate briefly when the hydraulic oil

is cold.

WS043

HYDRAULIC TRANSMISSION FILTER INDICATOR LIGHT

Illuminates when the transmission filter element is blocked.

Note: The engine must be running for the hydraulic return filter indicator light

to illuminate. The indicator light may illuminate briefly when the hydraulic oil

is cold.

WS042

TRANSMISSION SYSTEM ‘WORK’ MODE INDICATOR LIGHT

Illuminates when the transmission system ‘work’ mode is selected and the ignition

key turned to position ‘I’

WS055

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1.36

OPERATING THE MOWER

1.36

CUTTERHEAD POSITION CONTROL

4A953B03A

The cutterheads may be raised or lowered using the bank of 3 lift control

levers.

To lower the cutterheads, operate the lift control levers in a downward

direction until locked in position 1. If the cutterhead drive switch is in the

‘ON’ position, the cylinder drive will engage when the cutterheads are

approximately 300mm above ground level.

1. Down / float

2. Neutral

3. Raise

4. LH Wing or LH Wing+LH Front*

5. Centre+LH/RH Front or Centre*

6. RH Wing or RH Wing+RH Front*

IMPORTANT: PREVENT DAMAGE - The lift control levers must be

locked in position 1 while mowing. NEVER mow with the lift control

levers in position 2 (neutral).

To raise the cutterheads, operate the lift control levers in an upward direction

and hold in position 3. If the cutterhead drive switch is in the ‘ON’ position,

the cylinder drive will disengage when the cutterheads are approximately

300mm above ground level. Release the lift control levers when the

cutterheads are at the required height. The control levers will automatically

return to position 2 (neutral).

*Depending on which lift configuration

is selected. Refer-Dual Lift Configuration

Control.

DUAL LIFT CONFIGURATION CONTROL

The dual lift configuration control function enables the lift controls to be

used in two ways as follows:

Five gang mode, lift configuration (1):

Control switch in position 1

LH lift lever (3) controls LH wing cutterhead

Centre lift lever (4) controls LH front + centre + RH front cutterheads

RH lift lever (5) controls RH wing cutterhead

3D95301

4A953B03B

Three/five gang mode, lift configuration (2):

Control switch in position 2

LH lift lever (3) controls LH wing + LH front cutterheads

Centre lift lever (4) controls centre cutterhead

RH lift lever (5) controls RH wing + RH front cutterheads

With the LH and RH wing cutterheads locked in the fully raised

transport position.

1. 5 Gang Mode

Control switch in position 2

2. 3/5 Gang Mode

3. LH Lift Lever

4. Centre Lift Lever

5. RH Lift Lever

LH lift lever (3) controls LH front cutterhead

Centre lift lever (4) controls centre cutterhead

RH lift lever (5) controls RH front cutterhead

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1.37

OPERATING THE MOWER

CUTTERHEAD DRIVE ENGAGEMENT

The cutterhead drive can be engaged only when the operator is

seated correctly, refer - OPERATOR PRESENCE CONTROLS.

Briefly operate the lift control levers to raise the cutterheads,

thereby removing the cutterhead suspension deadweights and wing

units stored energy reaction from the transport latch mechanisms.

WS047

Release the cutterhead latches. Operate the cutterhead position

controls to the down / float position and lower all cutterheads to

the ground ready for mowing.

1. Forward.

2. Off.

3. Reverse.

Forward rotation cutterhead drive engagement : Operate the

cutterhead drive switch to the 'Forward' position.

Reverse rotation cutterhead drive engagement : Operate the

cutterhead drive switch to the 'Reverse' position.

To disengage all cutterhead drives : Operate the cutterhead drive

switch to the 'Off' position.

WARNING : PREVENT ACCIDENTS - Refer OPERATOR

PRESENCE CONTROLS for additional information.

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1.38

OPERATING THE MOWER

1.38

WEIGHT TRANSFER / TRACTION ASSISTANCE

A variable hydraulic weight transfer system is provided for improving tyre grip with the grass surface -

‘Traction Assistance’.

Hydraulic pressure in the cutterhead lift system provides a lifting force which reduces cutterhead weight

on the ground and transfers the weight as a downward force onto the mower’s tyres. This action is

known as ‘Weight Transfer’.

To engage weight transfer: The amount of weight transfer can be varied to suit operating conditions by

rotating the weight transfer hand wheel as follows;

Release the lock wheel underneath the hand wheel 1/2 turn anti-clockwise and hold.

Rotate the hand wheel:

Tighten the lock wheel.

- Anti-clockwise to reduce weight transfer.

- Clockwise to increase weight transfer.

1. Weight transfer hand wheel

2. Lock Wheel

3. Control Panel

4A922A02A

STARTING THE ENGINE

WARNING: PREVENT ACCIDENTS - Before starting the engine check that ;

- The area is clear of bystanders.

- The cutterhead drive is disengaged.

- The parking brake is engaged.

- The travel control pedal is in neutral.

- You have read and understood the SAFETY PRECAUTIONS section in this

manual.

This machine is fitted with an Engine Start Lockout, refer - OPERATOR PRESENCE

CONTROLS.

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1.39

OPERATING THE MOWER

STARTING THE ENGINE

Continued.

III

Starting a cold engine: Set the throttle control lever to approximately 70% full

throttle.

Turn the ignition key to the ‘ignition on’ position "I" and check that the engine

oil pressure and battery charge warning lights illuminate.

Turn the ignition key to the ‘preheat’ position "II" and hold until the engine

pre-heat indicator light goes out.

Turn the ignition key to the ‘start’ position "III" and hold to crank the engine.

As soon as the engine starts release the ignition key back to position 'I'.

1. Engine pre-heat

indicator light

WARNING: PREVENT DAMAGE - When the engine is operating all warning lights should be ‘off’.

If a warning light illuminates, stop the engine immediately and have the fault rectified before

restarting.

Starting a warm engine: Engine pre-heating is unnecessary when restarting an engine which has been

stopped for a few minutes. Follow the cold engine starting procedure without holding in ‘preheat’ position

“II”.

STOPPING THE ENGINE

To stop the engine: Turn the ignition key to position '0'.

III

WARNING: PREVENT ACCIDENTS - If the engine fails to stop when the ignition key is turned to

'O' operate the fuel control lever to the engine ‘stop’ position as shown. Keep hands clear of moving

objects and hot engine parts whilst the engine is running.

1. Engine stop position

2. Engine run position

3. Stop solenoid

PS008

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1.40

OPERATING THE MOWER

1.40

GENERAL OPERATING HINTS

The rotational speed of the cutting cylinders should always be kept as high as possible in order to

maintain the highest quality of cut. This in turn requires that the engine speed be kept as high as

possible.

The quality of cut will deteriorate if the forward speed is excessive. Always balance the quality of cut

with the workrate required and set the forward speed accordingly.

Never let the engine labour. Reduce the forward speed or increase the height of cut. Check that the

cutting cylinders are not in heavy contact with their bottom blades.

Regularly check the cutting cylinder to bottom blade adjustment every few hours even though cutting

performance appears to be satisfactory. Heavy contact or excessive clearances between the cylinder and

bottom blades will cause rapid wear to take place.

Always disengage the cutterhead drive when travelling across ungrassed areas. Grass will lubricate the

cutting edges whilst mowing. Excessive heat will build up if the cutting cylinders are run when not

mowing and this will cause rapid wear to take place. For this reason it is also wise to reduce cutting

cylinder speed when mowing lightly grassed areas or when the grass is dry.

Cutting performance is best when cutting against the lie of the grass. In order to take advantage of this

fact, the operator should attempt to alternate the direction of mowing between cuts.

Take care not to leave uncut strips of grass at the overlap points between adjacent cutterheads, by

avoiding tight turns.

It is generally wise to remove rear roller scrapers where conditions allow, as optimum grass discharge is

achieved without them. Scrapers should be refitted when conditions are such that mud and grass start to

build up on the rollers. When refitting the scraper wires, care must be taken to ensure that they are cor-

rectly tensioned, refer - MAINTENANCE - EVERY 50 HOURS.

WARNING : PREVENT ACCIDENTS -Take care when travelling over obstacles such as roadside

kerbs. ALWAYS travel at slow speed over obstacles to prevent damage to the machines tyres,

wheels and steering system. Ensure that tyres are inflated to the recommended pressures.

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1.41

OPERATING THE MOWER

UNBLOCKING CUTTING CYLINDERS

WARNING: PREVENT ACCIDENTS - Before attempting to clear any blockage from the cutting

cylinders on this machines ensure all of the following:

- Stop the machine on level ground.

- Apply the parking brake and disengage all drives.

- Lower the cutting units to the ground or securely lock in the designated transport positions.

- Stop the engine and remove the ignition key to isolate all power sources and check that they

are stopped.

- Release all stored energy devices.

- Check that all moving parts are stationary.

NEVER ATTEMPT TO ROTATE THE CUTTING CYLINDERS BY HAND as there may be some

residual pressure in the hydraulic system which could cause injury through sudden movement of the cylin-

der(s) when the blockage is released.

Always wear protective gloves and use a suitable strong wooden instrument. Ensure that this will fit between

the blades and through the cylinder and is long enough to provide sufficient leverage to release the block-

age and any residual hydraulic system pressure by rotating or rocking the cylinder. Make sure that the wood-

en instrument is properly supported in the cylinder and avoid the use of excessive force to prevent damage.

Only when the cylinder has a degree of free movement should the source of the blockage be removed.

Ensure that the wooden instrument is also removed before restarting the power source.

If the cylinder requires readjustment or repair, refer - MAINTENANCE - Cutterheads.

CENTRE CUTTERHEAD HEIGHT OF CUT CORRECTION ADJUSTMENT

With all cutterheads set at the same HOC via the indicator rings, it may be noticeable that the centre unit

produces a higher cut finish compared to the wing units. The centre unit is pulled and the wing units are

pushed this presents marginally different cutting angles relative to the ground. The amount of HOC varia-

tion, which results from this will be influenced by the terrain but satisfactory results can usually be

achieved by setting the centre cutterhead HOC indicator ring lower than the wing unit settings.

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1.42

OPERATING THE MOWER

1.42

CUTTERHEAD GENERAL INFORMATION

The mower is designed to be used with MK3 200mm fixed or floating cutterheads or MK3 254mm

fixed cutterheads.

It is essential that the relationship between the bottom blades and the cutting cylinders are kept in good

adjustment and that cutting edges are kept sharp to ensure good cutting performance, minimum power

consumption and prolonged life for the cutting edges, refer - MAINTENANCE - Cutterheads.

Fixed MK3 200mm/254mm Cutterheads: When the mower

is set up with fixed cutterheads the height of cut is gauged by

the rear roller and the cutterhead is allowed to pivot laterally to

follow ground contours. This arrangement is normally

recommended for general mowing requirements.

(MK3 200mm Cutterhead illustrated).

1D876P02A

Floating MK3 200mm Cutterheads: When the mower is set

up with floating cutterheads the height of cut is gauged by the

front and rear rollers. The cutterhead is allowed to pivot fore

and aft as well as laterally. This arrangement is recommended

for high quality grass areas and performs well where grass is

short and the ground undulations are severe.

1D876P03A

Grass deflectors: The rear grass deflectors must always be

correctly fitted. The deflectors should be set as low as possible

to deflect grass discharge to the ground.

WARNING: PREVENT ACCIDENTS - Always ensure

that the grass deflectors are angled below horizontal level,

otherwise risks to health and safety may result.

1D876P04B

Height of cut gauge: An optional height of cut gauge is

available to assist in achieving accurate cut height settings. It

is suitable for both fixed and floating cutterheads.

Hayter Part No. 63-01-760

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1.43

OPERATING THE MOWER

MK3 200mm FIXED CUTTERHEAD

Height of cut adjustment: The height of cut is gauged by the

position of the rear roller.

Turn the adjusting nut assembly ‘B’ both ends clockwise to

decrease height of cut ‘E’ or anti-clockwise to increase height of

cut ‘E’.

1D876P08B

IMPORTANT: PREVENT DAMAGE - Do not attempt to

unlock the nut assemblies, ‘B’.

Ensure that all cutterheads are set at the same height of cut by

either referring to the indicator rings ‘C’ or by using a height of

cut gauge across the full width of each cutterhead for greater

accuracy as shown.

1D876P09A

MK3 254mm FIXED CUTTERHEAD

Height of cut adjustment: The height of cut is gauged by the

position of the rear roller.

Turn the adjusting nut assembly ‘B’ both ends clockwise to

decrease height of cut ‘E’ or anti-clockwise to increase height of

cut ‘E’.

1D876P16A

IMPORTANT: PREVENT DAMAGE - Do not attempt to

unlock the nut assemblies ‘B’.

Ensure that all cutterheads are set at the same height of cut by

either referring to the indicator rings ‘C’ or by using a height of

cut gauge across the full width of each cutterhead for greater

accuracy as shown.

1D876P09A

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1.44

OPERATING THE MOWER

1.44

MK3 200mm FLOATING CUTTERHEAD

Pivot knuckle fixing: Secure the bolt in the rear “floating” slot

position ‘A’ as shown.

1D876P07A

Height of cut adjustment: The height of cut is gauged by the

position of the front and rear rollers.

To alter the rear roller position, turn the adjusting nut assembly ‘B’

both ends clockwise to decrease height of cut ‘E’ or anti-clockwise

to increase height of cut ‘E’.

1D876P06B

IMPORTANT: PREVENT DAMAGE - Do not attempt to

unlock the nut assemblies, ‘B’.

To alter the front roller position loosen bolts ‘F’. Release and turn

adjusting nuts ‘D’ both ends clockwise to increase the height of cut

or anti-clockwise to decrease the height of cut.

Ensure that all cutterheads are set at the same height of cut by

referring to the indicator rings ‘C’ or use the height of cut gauge

across the full width of each cutterhead as shown.

1D876P10A

Tighten nuts ‘D’ and ‘F’ both ends.

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1.45

MAINTENANCE

WARNING : PREVENT ACCIDENTS - When carrying out maintenance procedures it is essential that:

- The engine is switched off and the ignition key removed.

- The parking brake is applied.

- There is no pressure in the hydraulic system.

- The cutterheads are fully down on the ground.

- The safety precautions in this manual have been read and understood.

WARNING : PREVENTACCIDENTS - Stored energy devices and systems are used on the T424 mower.

It is essential that this stored energy is safely dissipated before maintenance or other service or operations

are performed on these devices and systems on the machine.

Dissipate stored energy as described below:

Hydraulics:

Transmission System - Ensure that the machine is on level ground, engage the parking brake and switch the

engine off. Depress the forward and reverse travel pedals alternatively several times.

Cutterhead Lift System - Lower the cutterheads to the ground and switch the engine off. Raise and lower

the lift levers several times leaving them in the ‘down/float’ position.

Cutterhead Drive System - Lower the cutterheads to the ground with the cutterhead drive switch in the ‘off’

position and switch the engine off.

Wing Cutterhead Springs - Lower the wing cutterheads to the ground.

Operator Platform Gas Spring - Raise the platform fully.

IMPORTANT: PREVENT DAMAGE: Regular maintenance is essential for the continued safe oper-

ation of the machine. Correct servicing will prolong the working life of the machine and

safeguard the "Hayter Warranty". Always fit genuine 'Hayter service parts' as these are

accurately matched to the required duty.

Dirt and contamination are the enemies of any hydraulic system. When carrying out maintenance

procedures on the hydraulic system always ensure that the work area and the components are

thoroughly clean before, during and after refitting. Ensure that all open hydraulic lines and ports, etc. are

plugged during maintenance procedures.

The recommended service intervals are based on normal operating conditions. Severe or unusual

conditions will necessitate shorter service intervals.

ALWAYS grease pivot points immediately after pressure washing or steam cleaning, refer - EVERY 50

HOURS, GREASE PIVOT POINTS.

WARNING: PREVENT ACCIDENTS - The engine, transmission oil and hydraulic systems will be hot

after machine use. Allow the systems to cool before working on the machine, particularly before work-

ing on the engine or when changing oil or oil filters.

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1.46

MAINTENANCE

1.46

MAINTENANCE

Continued.

WARNING : PREVENT ACCIDENTS - Use hazardous substances carefully.

The following fluids are identified as being hazardous;

Substances

Assessed risk

Diesel oil

Low

Lubricating oil

Hydraulic oil

Grease

Anti - freeze

Battery acid

Medium

High

When using any of the above fluids it is recommended that eye protection and gloves are worn and

that care is taken to prevent spillage.

Avoid contact with skin; wash off spillage with soap and water.

In the case of battery acid drench with water and seek medical attention. Remove any contaminated

clothing and clean thoroughly before use.

Avoid contact with eyes; wash with running water and seek medical attention if symptoms persist.

In the case of battery acid, seek medical attention immediately.

Avoid ingestion; if swallowed seek medical attention.

Keep clear of high pressure fluid escaping from pinholes, cracked connections etc. High pressure

fluid can penetrate the skin. Seek immediate medical advice if any fluid is injected into the skin.

Always use a piece of cardboard or paper when searching for leaks.

CAUTION: PREVENT ENVIRONMENTAL DAMAGE - Dispose of hazardous substances

correctly.

When disposing of hazardous waste products, take them to an authorised disposal site.

Waste products must not be allowed to contaminate surface water, drains or sewerage systems.

CAUTION: PREVENT ENVIRONMENTAL DAMAGE - Dispose of a

used battery correctly. The battery has a separate collection mark. This

means that the battery must not be disposed of with general waste. It

must be taken to an authorised disposal site

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1.47

MAINTENANCE

ENGINE

Refer to the Engine Operator's Manual for maintenance information.

RUNNING IN PERIOD

Check wheel nut torque settings:

During first 50 hours of use and in addition to routine checks. Refer -

DAILY AND BEFORE USE. Check wheel nut torques twice a day.

Front axle wheel nut torque setting - 200 Nm.

Rear axle wheel nut torque setting - 54 Nm.

RUNNING IN PERIOD - AT FIRST 50 HOURS

Change the transmission oil filter: Unscrew and remove the bottom of the

transmission oil filter housing. Withdraw the filter element and discard. Refit

a new filter element (Hayter part no. 924708) and replace the housing.

1. Transmission Oil Filter.

2. Centre Cutterhead.

3. Hydraulic Oil Tank.

1P953C17

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1.48

MAINTENANCE

1.48

RUNNING IN PERIOD - AT FIRST 50 HOURS

Continued.

Change the hydraulic oil return filter: Unscrew and remove the

return filter canister and discard. Refit a new filter canister (Hayter

part no. 924692).

Left Hand Side of Machine

1P953C16A

1. Hydraulic oil return filter.

2. Engine fuel filter.

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1.49

MAINTENANCE

DAILY AND BEFORE USE

Check engine oil level: If the oil level is below the upper mark on the

dipstick, top up with the correct grade of engine oil to the required level,

refer - ENGINE MANUAL.

Check engine radiator coolant level:

ONLY REMOVE RADIATOR CAP WHEN ENGINE IS COOL.

IL FAUT TOUJOURSATTENDRE LE REFROIDISSEMENT DU MOTEUR

ANT DE RETIRER LE BOUCHON DU RADIATEUR.

WARNING: PREVENT ACCIDENTS - Avoid scalding. DO NOT

remove the radiator filler cap unless the engine is cool. Turn the filler

cap slowly to release system pressure before removing the filler cap

completely.

VERWIJDER DE RADIATORDOP PAS NADAT DE MOTOR ISAFGEKOELD.

HEIZKORPERDECKELENTFERNEN ERST WENN DER MOTOR KUHLIST.

70-13-073 REV (.0.)

Keep coolant between “Full” and “Low” when engine is cold at all times.

Full

Low

4P994C13A

Cleaning the air cleaner: Remove the air filter and tap it repeatedly with

the palm of the hand to remove dust particles. DO NOT damage the air

filter by hitting it against a hard object. Inspect the air filter for signs of

damage.

1D950R13A

IMPORTANT: PREVENT DAMAGE - Always replace a damaged

air filter or damage to the engine will result. NEVER run the engine

without the air filter correctly fitted.

1. Air filter

2. Dust bowl

3. Dust boot

Clean the inside of the cleaner dust bowl with a dry cloth and check that

the dust boot is unobstructed.

Replace the air filter and assemble the dust bowl, with the dust boot

facing below horizontal level.

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1.50

MAINTENANCE

1.50

DAILY AND BEFORE USE

Continued.

Clean the radiator screen: Clean the radiator screen. Check

the oil cooler and engine radiator grille for debris and clean as

necessary, using a brush or airline. If water is used, these

areas should be allowed to dry out completely before use.

IMPORTANT: PREVENT DAMAGE - NEVER operate

the mower with a damaged radiator screen or engine

damage could result from overheating. Clean the radiator

screen more regularly in dry conditions.

1P953C14A

1. Radiator screen.

2. Oil cooler

3. Radiator

Check fuel level: Top up as necessary with diesel fuel.

Always top up before storing the mower over-night to prevent

water condensation from contaminating the fuel.

Check hydraulic oil level: If the oil level is below the upper

mark on the sight level gauge, top up with the correct grade

of hydraulic oil as necessary, refer- SPECIFICATIONS.

WARNING : PREVENT DAMAGE - If there is

noticeable hydraulic oil loss, the leakage source must be

rectified before using the mower. NEVER operate the

mower when the hydraulic oil level is below the bottom

mark on the sight level gauge. NEVER operate the

mower with contaminated oil.

1D924P06B

1. Sight level gauge

2. Oil tank

3. Oil filler cap.

4. Fuel tank.

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1.51

MAINTENANCE

DAILY AND BEFORE USE

Continued.

Check hydraulic hose-lines: Inspect hydraulic hose-lines for signs of wear or damage.

WARNING: PREVENTACCIDENTS - ALWAYS replace worn or damaged hydraulic hose-lines

immediately. DO NOT operate the mower with defective hydraulic hose-lines.

Inspect the mower for signs of oil leakage. Tighten fittings or replace seals as required.

Check fasteners: Check that all nuts, bolts and pins are secured correctly

in place and in good condition.

Check safety devices:

WARNING - PREVENT ACCIDENTS : Ensure that all safety guards,

shields and protective devices are securely in place and in good working

order.

Check tyres: Examine the condition of the tyres and check that inflation

pressures are correctly set, refer - SPECIFICATIONS.

WARNING - PREVENT ACCIDENTS : Ensure that damaged tyres

are replaced. Ensure that tyre tread depths comply with road traffic

regulations.

Grease all rear axle components including the centre axle beam pivot pin,

both steering yokes and track rod ball joints, refer -EVERY 50 HOURS -

Grease pivot points.

Check cutterheads: Examine the condition of the cutting cylinders and bottom blades. Adjust as

necessary, refer - MAINTENANCE - CUTTERHEAD CYLINDER TO BOTTOM BLADE

ADJUSTMENT.

Grease all cutterhead rollers with a good quality medium grade grease and ensure that sufficient grease

is injected such that clean grease is seen to escape from the roller end caps, refer - MAINTENANCE -

EVERY 50 HOURS.

If no grease can be seen escaping from a roller end cap. It can be assumed that the rear seal has failed,

resulting in the roller shell being filled with grease.

Note: Care should be taken if an industrial power greaser is used as this may result in damage to

the bearing sealing arrangement.

Check forward/reverse travel pedal action: With the engine switched ‘off’, operate the forward and

reverse travel pedals through the full range of articulation and ensure that the mechanism returns freely

to the neutral position.

WARNING - PREVENT ACCIDENTS: Do not operate the machine if there are any signs of

‘Stickiness’ in the pedal mechanism which prevents a free return to the neutral condition.

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1.52

MAINTENANCE

1.52

DAILY AND BEFORE USE

Continued.

Check operator presence controls:

WARNING : PREVENT ACCIDENTS - Keep bystanders away when checking operator

presence control interlock switches. DO NOT use the mower unless the operator presence con-

trols work correctly as described below. If difficulties arise, consult your "Hayter dealer”.

Operator presence seat switch: Sit on the operator seat and start the engine. Lower the cutterheads

to the ground and engage the cutter drive in the forward direction. Rise from the operators seat and

check that the cutting cylinders come to a stop after an initial 0.5 to 1 second delay. Repeat with the

cutting cylinders running in reverse.

Cutter drive interlock switch: Stop the mower engine. Operate the cutter drive switch to the ‘off’

position and turn the ignition key to position ‘I’. The cutterhead drive switch indicator light should illu-

minate. Refer - OPERATING THE MOWER.

Operate the switch to the ‘forward’ position. The indicator light should go out and the engine should

not start when the ignition key is turned. Repeat for the ‘reverse’ position.

Parking brake interlock switch: Stop the engine. Engage the parking brake and turn the ignition key

to position ‘I’. The parking brake indicator light should illuminate. Refer - OPERATING THE

MOWER.

Disengage the parking brake. The indicator light should go out and the engine should not start when

the ignition key is turned.

Transmission neutral interlock switch: Stop the mower engine and remove the foot from the for-

ward/reverse travel pedals. Turn the ignition key to position 'I’ and the transmission neutral indicator

light should illuminate. Application of light pedal pressure in a forward and reverse direction should

cause the indicator light to go out. Take extreme care to ensure that the area around the mower is clear

before checking that the engine will not start under this condition.

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1.53

MAINTENANCE

EVERY 50 HOURS

Perform routine checks : Refer - DAILY BEFORE USE.

Check cutterhead roller bearing adjustment:

IMPORTANT : PREVENT DAMAGE - It is essential that

the cutterhead roller bearings are kept in good adjustment

in order to ensure maximum working life. If end float is

allowed to become excessive, premature bearing failure will

result.

Grip the roller and move from side to side and up and

down. If excessive movement is detected, proceed as fol-

lows:

3D924S001A

Carefully tighten nuts ‘A’ at each end of the roller with the

spanner provided, just sufficiently to remove any end float.

Note: The roller should still rotate freely after adjustment.

Overtightening of nuts ‘A’ could lead to premature bearing

failure.

Check cutterhead rear roller scraper wire tension:

It is important that the scraper wires are correctly tensioned so

as to ensure correct operation and maximum working life.

Carefully tighten the scraper wire retaining nuts ‘B’so as to just

remove any slack from the scraper wires and then tighten nuts

‘B’ a further four full turns to correctly tension the wires.

IMPORTANT: PREVENT DAMAGE - Do not over tighten

the scraper wires.

Check wheel nut torque settings:

Front axle wheel nut torque setting - 200Nm.

Rear axle wheel nut torque setting - 54 Nm.

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1.54

MAINTENANCE

1.54

EVERY 50 HOURS

Continued.

Grease pivot points : Clean and grease all grease points with a

good quality compound of the grade specified, refer -

SPECIFICATIONS.

Replace any grease nipples which are damaged.

Grease all cutterhead grease points and ensure that sufficient

grease is injected such that clean grease is seen to escape from

the roller end caps. This provides visible evidence that the roller

seals have been purged of grass debris etc. and will ensure

maximum working life.

Grease every 50 hours (Weekly)

Grease daily

Medium grade grease

Medium grade grease (if fitted)

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1.55

MAINTENANCE

EVERY 250 HOURS

Perform routine checks : Refer - DAILY BEFORE USE.

- EVERY 50 HOURS.

Check battery condition :

WARNING : PREVENT ACCIDENTS - Explosive gases are produced by the battery. Work in a well

ventilated area, away from all sources of ignition.

Battery fluids are corrosive. Take care to avoid contact with the skin or eyes. In the event of a spillage,

drench the affected area with water. If the eyes are affected, seek medical attention. Remove any cont-

aminated clothing and clean thoroughly before use.

When removing the battery, always disconnect the negative (-) cable first.

When replacing the battery, always connect the negative (-) cable last.

Remove the tool tray to gain access to the battery. Remove any corrosion from the battery terminals using a wire

brush and apply petroleum jelly to the terminals to prevent further corrosion. Clean the battery compartment.

Under normal operating conditions the battery will not require any further

attention. If the machine has been subject to continuous use under high

ambient temperature conditions, the battery electrolyte may require topping

up. Remove the cell covers and top up with distilled water to a height 15mm

below the top of the battery. Replace the cell covers.

IMPORTANT : PREVENT DAMAGE - Check the condition of the

battery cables. Replace cables showing signs of wear or damage and

tighten any loose connections as necessary.

1. Battery

2. Tool Tray

1D924P14A

Visually inspect transmission control cable and operating mechanism:

Check the condition and security of the cable and operating mechanism at the travel control pedals and trans-

mission pump ends.

Outer Cover

Rubber Seal Sleeve

Rubber Seal Rod End

Remove build up of dirt, grit and other deposits.

Ensure that the ball joints are securely anchored and

check that mounting brackets and cable anchors are

tight and free from cracks.

Inspect end fittings for wear, corrosion, broken springs

and replace if necessary.

Ensure that the rubber seals are correctly located and in good condition.

Ensure that the articulating sleeves supporting the inner cable are in good condition and firmly attached to

the outer cable assembly at the crimped connections. If there are any signs of cracking or detachment fit

new cable immediately.

Check that sleeves, rods and inner cable are free from bends, kinks and other damage. If there are any signs

of such failure, fit a new cable immediately.

Check the condition of the neutralising device and replace if worn.

With the engine switched ‘Off’, operate the pedal controls through the entire range and ensure that the

mechanism moves smoothly and freely to the neutral position without ‘Sticking’ or ‘Hanging up’.

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1.56

MAINTENANCE

1.56

EVERY 500 HOURS

Perform routine checks : refer

- DAILY BEFORE USE.

- EVERY 50 HOURS.

- EVERY 250 HOURS.

Thoroughly clean the machine:

IMPORTANT: PREVENT DAMAGE - Keep water away from electrical components. Use a dry

cloth or brush to clean such areas.

Service the hydraulic system : This procedure is best carried out when the hydraulic oil is warm (not

hot). Lower the cutterheads to the ground and drain the hydraulic system by removing the hydraulic tank

drain plug. Remove the oil tank filler flange to gain access to the suction strainer. Unscrew and remove

the strainer and clean with paraffin or petrol before replacing. Renew the strainer if there are any signs

of damage.

Remove the oil filler cap strainer and clean before replacing. Renew the strainer if there are any signs

of damage.

Renew the return line oil filter element, refer - RUNNING IN PERIOD AT FIRST 50 HOURS.

Renew the transmission oil filter element, refer - RUNNING IN PERIOD AT FIRST 50 HOURS.

Replace the drain plug and refill the hydraulic tank with fresh clean hydraulic oil of the recommended

grade, refer - SPECIFICATIONS.

Run the machine and operate all hydraulic systems until the hydraulic oil is warm. Recheck the oil level

and top up as necessary to the upper mark on the sight level gauge.

1. Drain plug

2. Oil tank filler flange

1D924P05C

3. Suction strainer

4. Filler strainer

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1.57

MAINTENANCE

Continued.

EVERY 500 HOURS

ENGINE

Renew the engine air cleaner filter: Check the condition of the air cleaner

hoses. Replace any hose which is damaged and tighten the connections, refer -

ENGINE MANUAL.

ENGINE

Renew the engine fuel filter element: Refer - ENGINE MANUAL.

Check electrical system: Inspect all electrical connections and cables and replace any which are damaged

or corroded. Spray a good quality water inhibitor on to exposed connections to prevent moisture ingress.

Check rear wheel alignment: To prevent excessive tyre wear and ensure safe machine operation, the rear

wheels must be correctly aligned to ‘toe - in’ by 3 - 8mm.

Set the rear wheels in the straight ahead position. Measure and compare the distance between the front

sidewalls and the rear sidewalls at the wheel centre height. The distance between the front sidewalls must

be set 3 - 8mm less than the distance between the rear sidewalls.

1. Wheel centre height

2. Tyre

3. Direction of forward travel

4. Track-rod assembly

To adjust the alignment of the rear wheels, first back off the left hand and right hand locknuts on the track

rod assembly. (Left hand locknut is a left hand thread). Rotate the track rod to achieve the correct

‘toe - in’ as described above and tighten the locknuts securely.

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1.58

MAINTENANCE

1.58

EVERY 500 HOURS

Continued.

Check the engine overheat warning system: Turn the ignition key to the ‘ignition on’ position 'I'.

Disconnect the red/grey wire terminal from the engine temperature switch and touch the metal terminal of

this wire onto a suitable earth point, ensuring that the metal surfaces make good contact. The horn will

sound and the engine coolant temperature warning light will illuminate to confirm correct operation. If the

system is faulty, make repairs before operating the mower.

1. Temperature switch.

Check the hydraulic oil overheat warning system: Turn the ignition key to the ‘ignition on’ position 'I'.

Disconnect the red/blue wire terminal from the hydraulic tank temperature switch and touch the metal

terminal of the wire onto a suitable earth point, ensuring that the metal surfaces make good contact. The

horn will sound and the hydraulic oil temperature warning light will illuminate to confirm correct

operation. If the system is faulty, make repairs before operating the mower.

1. Temperature switch

2. Hydraulic oil tank

1P953C15A

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1.59

MAINTENANCE

CUTTERHEAD CYLINDER TO BOTTOM BLADE ADJUSTMENT

IMPORTANT : PREVENT DAMAGE - It is essential that the

relationship between the bottom blades and the cutting cylinders is

kept in good adjustment in order to ensure good cutting performance,

minimum power consumption and prolonged life for the cutting

edges.

Carry out the following procedure before commencing work and re-check

the settings every few hours.

90⁰

Check that the cutting cylinder is correctly set to the bottom blade by

holding a thin piece of paper between the cutting cylinder and the bottom

blade as shown. Carefully rotate the cylinder as shown and check that the

paper is cut cleanly at all points along the length of the blade. Hold the

paper at 90 degrees (right angles) to the bottom blade to obtain the correct

cutting action.

WARNING: PREVENT ACCIDENTS - Ensure that people are clear

of the cutting cylinders as rotation of one may cause others to rotate.

If adjustment is necessary proceed as follows;

Release nut 'A' 1/4 turn both ends.

Turn handwheel 'B' each end alternately whilst rotating the cutting

cylinder backwards until the bottom blade is in 'fleeting' contact with the

cylinder along its entire length. Re-check the cutting action along the

length of the bottom blade using a thin piece of paper making marginal

adjustments as necessary.

Tighten nut 'A' both ends.

If it is impossible to obtain a good clean paper cut across the entire length of the bottom blade it will

be necessary to carry out the backlapping procedure to reprocess the cutting edges. In severe cases it

will be necessary to regrind the cutting cylinder and the bottom blade, refer - BACKLAPPING /

GRINDING.

Do not be tempted to over-adjust causing heavy contact between the cylinder and bottom blade as this

will cause very rapid uneven wear to take place, leading to tramlining and waviness of the cutting

edges. The frictional losses will be high and a significant amount of power will be absorbed thus reduc-

ing the power available for cutting. The heating effect due to friction will cause excessive expansion

to take place which will further aggravate the situation by increasing the contact pressure.

If the cutterheads are allowed to operate for more than a few hours without adjustment the running

wear will eventually cause the cylinder to run out of contact with the bottom blade. At this stage very

rapid rounding of the cutting edges will occur as grass and abrasive particles pass through the

clearance between the blades.

Lack of attention to adjustment can therefore be foolhardy as maintenance costs will escalate. Quality

of cut will also be seriously affected as will the health and growth of the grass.

An experienced operator will notice when a cutterhead starts to go out of adjustment, when the grass

ceases to be cut cleanly and the cut ends become ragged.

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1.60

MAINTENANCE

1.60

CUTTERHEAD BACKLAPPING

This process is recommended for restoring the sharp cutting edges to

cylinders and bottom blades which are essential for good quality grass

cutting.

This process can only deal with a small amount of metal removal to restore

the cutting edges. If the blade edges are seriously worn or damaged it will

be necessary to remove the component parts and have them reground.

The backlapping process:

1. Check that the mower engine is switched off and the parking brake applied.

2. Adjust the cutting cylinders to the bottom blades to obtain ‘fleeting contact’.

3. Apply a medium grade detergent based carborundum paste to the cutting

edges of the cylinders with a long handled brush.

80 Grade Carborundum paste

Hayter Part No:

0,45 kg

63-07-088

63-07-086

11,25 kg

4. Ensure that the area surrounding the cutterheads is clear of people and keep

hands and feet clear of the cutting cylinders during the period when the

mower engine is running.

5. Sit on the operator seat, start the mower engine and set the engine speed at

idle.

6. Operate the cutterhead drive switch to the 'reverse/backlap' position for a

period of time and listen to the grinding action .

7. Operate the cutterhead drive switch to the 'off' position and switch off the

mower engine when the grinding action has stopped.

90⁰

8. Thoroughly clean the blade edges and adjust the cutting cylinders to the

bottom blades. Check that a thin piece of paper can be cut cleanly at all

points along the cutting edges while rotating the cylinders by hand.

9. If further backlapping is necessary repeat steps 2 to 8.

10. Thoroughly remove and wash off all traces of the carborundum paste from

the cylinders and bottom blades.

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1.61

MAINTENANCE

CUTTERHEAD GRINDING

It will be necessary to carry out a grinding operation to correct cylinder spiral edges or bottom blade

edges which have become excessively rounded or distorted. Bottom blades which are nearing the end

of their wear life should be replaced. The new blades should be ground on their holders prior to fitting,

refer - CUTTERHEAD BOTTOM BLADE REPLACEMENT. When grinding operations are necessary

it is essential that both cylinders and bottom blades are ground at the same time. The only exception to

this rule is when a new cylinder is fitted in which case it is only necessary to grind the bottom blade.

All such grinding operations should be carried out by your dealer on a quality, well maintained

cylinder/ bottom blade grinding machine.

CUTTERHEAD BOTTOM BLADE REPLACEMENT

Remove the bottom blade holder by removing the three fixing bolts at each end and withdraw from the

cutterhead. Remove the worn bottom blade and discard the countersunk screws and securing nuts. Fit

the new blade to the holder and loosely assemble with new countersunk screws and securing nuts.

Tighten the centre bolts to a torque of 40 Nm. Continue by tightening the remaining bolts to the same

torque by working from the centre out towards the blade ends.

The new bottom blade must be ground on its holder prior to refitting to the cutterhead.

Adjust the cutting cylinder position to give adequate clearance for fitting the new bottom blade holder.

Refit the bottom blade holder assembly to the cutterhead using the original fixing bolts and tighten to

a torque of 35 Nm. Finally adjust the cylinder to the bottom blade, refer - CUTTERHEAD CYLINDER

TO BOTTOM BLADE ADJUSTMENT.

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1.62

MAINTENANCE

1.62

RAISING THE MOWER OFF THE GROUND

WARNING: PREVENT ACCIDENTS - Before raising the mower ensure that:

The lifting device to be used is in good condition and capable of supporting the weight of the

mower securely. Minimum lift capacity 2000 Kg.

The mower is on level ground.

The parking brake is applied.

The engine is switched off and the ignition key removed.

The ground under the lifting device is level and firm.

The lifting device is secure against one of the mower lifting points.

If raising the front of the mower, both of the rear wheels must be chocked securely to prevent the

mower rolling away. Note that the parking brake only operates on the front wheels.

WARNING: PREVENT ACCIDENTS - When the mower is raised off the ground:

NEVER crawl under the mower.

NEVER start the engine.

1. Front left hand lifting point

2. Front right hand lifting point

3. Rear towing eye and lifting point

4. Front towing eye

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1.63

MAINTENANCE

TOWING THE MOWER

Towing procedure : Connect a rigid tow bar between the towing eye on the mower and a suitable

towing vehicle. Ensure that the towing vehicle specification is suited to braking the combined vehicle

weight to rest whilst effecting complete control at all times. Ensure that the towing vehicle’s parking

brake is applied. Chock the mower front wheels to prevent the mower rolling away.

De-commission the front wheel motor disc brakes as follows :-

i) Identify the right hand front wheel motor disc brake assembly and remove the rubber plug (item 2).

Position a M12 x 40mm long setscrew (item 5) with washer (item 4) through the brake release bar (item

3) and into the hole in the centre of the motor end plate. Tighten the setscrew (item 5) into the

threaded hole in the brake piston until the brake is released.

ii) Identify the left hand front wheel motor disc brake assembly and repeat the previous procedure.

1D950R01

1. Front wheel motor.

2. Rubber plug.

3. Brake release bar.

4. Washer - M12 - (09485).

5. Setscrew M12 x 40 - (ZDH1L040U).

1D950R02

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1.64

MAINTENANCE

1.64

TOWING THE MOWER

Continued.

Bypass Valve

De-commission the hydraulic service braking system as follows:-

Open the transmission bypass valve situated as shown on top of the

transmission pump.

The valve is fully open at 3 anti-clockwise revolutions. Do not open

the valve past 3 revolutions.

The steering must be operated manually when the mower is being

towed. The steering will feel heavy as there is no hydraulic assis-

tance when the engine is switched off.

The mower is now in a freewheel condition and can be towed for a

short distance at slow speed.

Remove wheel chocks before towing.

After towing the mower: To return the mower to its normal work-

ing condition the following procedure must be adopted.

Chock the front wheels and re-commission the hydraulic service

braking system as follows :-

i) Close the transmission bypass valve. Turn clockwise and

tighten to a torque of 48- 52 Nm.

Re-commission the front wheel motor disc brakes as follows :-

i) Identify the right hand front wheel motor disc brake assembly.

Rotate the setscrew (item 5) anti-clockwise and remove together

with washer (item 4) and brake release bar (item 3). Reassemble the

rubber plug (item 2) into the motor end plate.

ii) Identify the left hand front wheel motor disc brake assembly and

repeat the previous procedure.

1D950R01

1. Front wheel motor.

2. Rubber plug.

3. Brake release bar.

4. Washer - M12 - (09485).

5. Setscrew M12 x 40 - (ZDH1L040U).

Store the brake release bars, washers and setscrews (items 3, 4 and

5) for future use.

Remove the wheel chocks.

Disconnect the tow bar.

The mower braking system will now operate in the normal way.

WARNING: PREVENT ACCIDENTS - Before using the

mower, ensure that the braking system operates correctly.

Carry out initial checks with the mower at slow speed.

Do not operate the mower with a defective braking system.

Do not operate the mower with the brakes de-commissioned.

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1.65

GRASS CUTTING FAULTS

FAULT

POSSIBLE CAUSE

REMEDY

Areas of uncut grass at

point of overlap between

cutting cylinders.

Turning too tightly.

Reduce turning radius.

Mower sliding sideways

when travelling across face of a slope.

Mow up/down slope.

One end of cutterhead out

of ground contact caused by:

- Poorly routed hoses or wrongly

positioned hydraulic adaptors.

Reroute hoses/reposition

hydraulic adaptors.

- Pivot pins seizing.

Free off and grease pivot pins.

Remove grass.

- Grass build up under cutterhead.

Ridge lines in the cut

across the direction of

travel over full width.

Forward speed too high.

Cylinder speed too slow.

Height of cut too low.

Reduce forward speed.

Increase mower engine speed.

Raise height of cut.

Ridge lines in the cut

grass across the direction

of travel over the cutting

width of one cylinder.

Cylinder is running slow.

Refer - TROUBLE

SHOOTING for remedy.

Step in cut grass height

at point of overlap

between cutting cylinders.

Inconsistent height of cut setting on one

cylinder.

Check and readjust height of

cut setting.

Raise/Lower position control not in float

position.

Operate position control

to float position.

One end of cutterhead out

of ground contact caused by:

- Poorly routed hoses or wrongly

positioned hydraulic adaptors.

Reroute hoses/reposition

hydraulic adaptors.

- Pivot pins seizing.

Free off and grease pivot pins.

Remove grass.

- Grass build up under cutterhead.

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1.66

GRASS CUTTING FAULTS

1.66

GRASS CUTTING FAULTS

Continued.

POSSIBLE CAUSE

Cutting cylinder is partially

out of contact with

the bottom blade.

FAULT

REMEDY

Readjust cutting cylinder to

bottom blade.

Some uncut or poorly

cut strands of grass..

Readjust cutting cylinder to the

bottom blade.

Cutting cylinder is in heavy

contact with the bottom

blade.

Lower height of cut

setting.

Height of cut is too

high.

Backlap or regrind to

restore cutting edges.

Cutting edges of cutting

cylinders/bottom blades

are rounded.

Backlap or regrind

to restore cutting edges.

Lines of uncut or badly

cut grass in direction of

travel.

Tramlining of cutting

edges due to heavy

contact caused by poor cutting cylin-

der to bottom blade adjustment.

Raise height of cut.

Bottom blade in ground

contact.

Readjust cutterhead to

ensure bottom

Nose down attitude of

bottom blade.

blade is parallel

to ground.

Reduce forward speed.

Reduce weight transfer.

Cutterheads bouncing.

Replace worn parts.

Worn cylinder bearings/bearing hous-

ing pivots.

Check and retighten as

necessary.

Loose components in cutterhead.

Undulations too severe

for height of cut setting.

Use floating cutterheads.

Raise height of cut.

Scalping.

Height of cut too low.

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1.67

GRASS CUTTING FAULTS

Continued.

POSSIBLE CAUSE

FAULT

REMEDY

Bottom blade in heavy

ground contact.

Excessive bottom blade

wear..

Raise height of cut.

Cutting edges of the cutting

cylinder/bottom blade

are rounded.

Backlap or regrind to restore

cutting edges.

Cylinder is in heavy

contact with the bottom

blade.

Readjust the cutting cylinder to

the bottom blade.

Damaged cutting cylinder or

bottom blade.

Regrind or replace as necessary.

Raise height of cut.

Excessively abrasive ground

conditions.

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1.68

TROUBLE SHOOTING

1.68

TROUBLE SHOOTING

When using the following chart it may be found that overhaul of major components or hydraulic

pressure adjustments are necessary. In this case it is recommended that your dealer make these repairs

as he is properly equipped to do this work.

WARNING: PREVENT ACCIDENTS - ALWAYS Apply the parking brake, switch off the engine

and remove the ignition key before attempting to work on the mower.

PROBLEM

POSSIBLE CAUSE

REMEDY

Engine will not start with

ignition key.

Transmission neutral interlock

switch not energised.

Remove foot from

forward/reverse travel pedal.

Check setting of transmission

neutral interlock switch.

Parking brake interlock switch

not energised.

Operate parking brake lever to

the ‘ON’ position.

Check setting of parking brake

interlock switch.

Cutterhead drive interlock

switch not energised.

Move cutterhead drive switch to

the ‘OFF’ position.

Check setting of cutterhead

interlock switch.

Faulty electrical connection.

Trace and correct fault.

For all other engine problems, refer - ENGINE HANDBOOK.

Flat Battery.

Terminal connection

loose or corroded.

Clean and tighten

terminal connections.

Recharge battery.

Loose or defective

alternator belt.

Re-tension or replace

drive belt, refer

- ENGINE HANDBOOK.

Defective battery.

Recharge battery.

Replace battery.

Electrical short circuit.

Trace short circuit and

make good.

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1.69

TROUBLE SHOOTING

Continued.

REMEDY

PROBLEM

POSSIBLE CAUSE

Check switch and

replace if necessary.

Differential lock

non operational.

Defective switch.

Service or replace

solenoid valve.

Defective solenoid

valve.

Check wiring/connections as

necessary.

Defective wiring.

Clean screen.

Clean fins.

Hydraulic oil sys-

tem overheating.

Blocked radiator

screen.

Blocked oil cooler

fins.

Clean matrix.

Blocked engine

radiator matrix.

Have relief valve cleaned and

pressure checked. Consult

your Hayter dealer.

Low relief valve

setting.

Fill reservoir to

correct level.

Low oil level.

Disengage brakes.

Readjust settings.

Brakes engaged.

Cutting cylinders

tight on bottom

blades.

Check fan operation

and service as required.

Defective fan or fan

drive.

Consult your Hayter dealer.

Incorrect brake

operation.

Faulty wheel motor

brake assembly.

Replace brake discs.

Consult your Hayter dealer.

Worn brake discs.

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1.70

TROUBLE SHOOTING

1.70

TROUBLE SHOOTING

Continued.

REMEDY

PROBLEM

POSSIBLE CAUSE

Release parking brake.

Lack of transmission

drive.

Parking brake engaged.

Fill reservoir to

correct level.

Low oil level.

Drain reservoir and

refill with correct

oil.

Incorrect oil used.

Check linkage and

replace defective

parts.

Defective travel pedal

linkage.

Have the transmission

pump overhauled by

your Hayter dealer.

Defective transmission

pump.

Close relief valve,

refer - MAINTENANCE -

TOWING THE MOWER.

Transmission relief valve

open.

Replace drive

coupling.

Broken drive coupling.

Replace transmission

filter.

Transmission filter

blocked.

Readjust transmission neutral

setting.

Forward/backward transmission

creep in neutral.

Transmission neutral ad-

justment incorrectly set.

Check switch and replace if neces-

sary.

Service or replace solenoid valve.

Work/transport modes non-oper-

ational

Defective control switch.

Defective solenoid valve.

Defective wiring.

Check wiring connections and

repair/replace as necessary.

Service or replace

steering valve.

Lack of steering.

Defective steering valve.

Service or replace

hydraulic cylinder.

Defective hydraulic

cylinder.

Replace defective hose.

Damaged steering hose.

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1.71

TROUBLE SHOOTING

Continued.

PROBLEM

POSSIBLE CAUSE

REMEDY

Excessive noise in

hydraulic system.

Faulty pump.

Identify noisy pump

and service or

replace.

Faulty motor.

Identify noisy motor

and service or

replace.

Air leaking into system.

Tighten or replace

hydraulic fittings

particularly in

suction lines.

Suction strainer blocked or

damaged.

Clean and replace

suction strainer or renew

as necessary.

Excessive oil viscosity

due to cold conditions.

Allow system to warm

up.

Low relief valve setting.

Have relief valve cleaned

and pressure checked.

Consult your Hayter dealer.

Low hydraulic oil level.

Fill hydraulic oil

reservoir to correct

level.

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1.72

TROUBLE SHOOTING

1.72

TROUBLE SHOOTING

Continued.

PROBLEM

POSSIBLE CAUSE

REMEDY

Replace as necessary.

After initial satisfactory

operation machine loses

power.

Worn pump or motor.

Fill hydraulic oil tank

to correct level.

Low hydraulic oil level.

Renew oil in hydraulic tank with

hydraulic oil of correct viscosity

grade, refer - SPECIFICATIONS.

Incorrect oil viscosity.

Change filter element.

Oil filter element

blocked.

Have relief valve cleaned and

pressure checked. Consult your

Hayter dealer.

Faulty pressure relief valve.

Check cylinder to bottom blade

adjustment. Reduce workrate i.e.

increase height of cut or reduce

forward speed.

Overheating.

Incorrect hydraulic oil

grade, refer - Problem

‘Hydraulic Oil System

Overheating’.

Check and tighten fittings.

Replace hose if necessary.

Leaks on suction hose.

Remove high spot with a stone

and backlap to restore cutting

edges. Serious damage will

necessitate regrinding.

High spot on cylinder or

bottom blade due to

contact with foreign

object.

Cylinder "knocks" while

rotating.

Replace as necessary.

Worn cylinder bearings.

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1.73

TROUBLE SHOOTING

Continued.

PROBLEM

POSSIBLE CAUSE

REMEDY

Replace as necessary.

Cutting cylinder bearing

seized.

One cylinder rotates

slowly.

Check motor and

replace if necessary.

Incorrect rotation motor

fitted.

Free off and lubricate or

replace diverter valve

as necessary.

Diverter valve only

partly open.

Have check valve

cleaned and checked.

Motor integral check

valve jammed open.

Readjust setting.

Replace motor.

Replace seals.

Cutting cylinder tight

on the bottom blade.

Motor worn.

Lift cylinder seal failure.

Cutterhead fails to lift

out of work.

Have relief valve

cleaned and pressure

checked. Consult your

Hayter dealer.

Pressure relief valve

jammed open or wrongly

set.

Overhaul control

valve.

Defective control valve.

Mechanical blockage.

Remove blockage.

Move cutterheads

throughout extremes

of movement and

observe any tightness

in the hoses. Correctly

route hoses and

Incorrect hose routing or

incorrect orientation of

hydraulic fittings.

Cutterheads do not follow

ground contours.

orientate fittings as

necessary.

Free off and grease

as necessary.

Tightness in pivots.

Move position control

lever to 'float'

position.

Mower operated in ‘hold’

position.

Reduce weight transfer.

Weight transfer set too high.

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1.74

TROUBLE SHOOTING

1.74

TROUBLE SHOOTING

Continued.

POSSIBLE CAUSE

REMEDY

PROBLEM

Cutterheads fail to start

up when lowered into work.

Faulty seat sensor switch.

Check mechanical and

electrical operation

of switch.

Low oil level.

Fill hydraulic oil

reservoir to correct

level.

Diverter valve jammed.

Sheared drive shaft.

Free off and lubricate or

replace the diverter

valve as necessary.

Check motor and

cylinder drive shafts

and replace if

necessary.

Pressure relief valve

jammed open or wrongly

set.

Have relief valve

cleaned and pressure

checked. Consult your

Hayter dealer.

Cutting cylinder jammed.

Free off as necessary.

Readjust setting.

Cutting cylinder tight on

bottom blade.

Cutterhead control valve

in the ‘off’ position caused

by:

- Defective control

valve.

Overhaul control

valve.

- Electrical fault.

Have electrical

system checked.

Cylinders rotate in

wrong direction.

Hoses wrongly connected.

Check hydraulic

circuit and reconnect

as necessary.

Cutterhead drive switch

wrongly connected.

Check switch

electrical

connections.

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1.75

ELECTRICAL CIRCUIT DIAGRAM

1.75

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1.76

ELECTRICAL CIRCUIT DIAGRAM

ITEM NO.

DESCRIPTION

PART NO.

Switch - Parking Brake Interlock.

Glow Plug Timer.

Light - Parking Brake.

Light - Glow Plugs.

Light - Neutral.

Light - Cutterhead Drive Off.

Light - Return Filter.

Light - Pressure Filter.

Light - Battery Warning.

Light - Engine Oil Pressure.

Light - Engine Coolant Temperature.

Light - Hydraulic Oil Temperature.

Diodes - Overheat - Audible Warning.

Switch - Beacon (supplied with beacon kit).

Switch - Work/Transport Mode.

Solenoid - Centre Cutterhead Drive Reverse.

Solenoid - Centre Cutterhead Drive Forwards.

Solenoid - Wing Cutterhead Drive Reverse.

Solenoid - Wing Cutterhead Drive Forwards.

Switch - Cutterhead Drive.

950865

15694-65992

924601/950858

924601/950857

924601/950862

924601/950861

924601/950866

924601/950863

924601/924605

924601/924606

924601/924602

924601/924603

950868

924608

924607

70-06-246

924864

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

Fusebox.

70-09-096

70-09-026

70-09-024

1. 10A Cutter Drive & Lift Configuration

2. 10A Transmission & Horn

3. 3A Instruments

4. Blank (Beacon)

5. Blank (Cab Wipers) or (Air Suspension Seat)

6. Blank (Lighting Kit)

7. Blank (Lighting Kit)

70-09-027

8. 30A Engine Start (Fuel Solenoid)

22.

23.

24.

25.

26.

27.

28.

29.

30.

31.

32.

33.

34.

35.

36.

37.

38.

39.

40.

41.

42.

43.

44.

Switch - Ignition.

Switch - Horn.

Relay - Cutterhead Drive Warning Lamps.

Relay - Overheat Audible Warning.

Cutterhead Drive/Starter Interlock.

Relay - Glow Plugs.

Timer - Operator Presence Interlock.

Switch - Cutterhead Lift Configuration.

Solenoids - Lift Configuration.

Temperature Gauge (supplied with temp kit).

Relay - Fuel Solenoid

Connectors for Lighting Kit.

Horn.

Switch - Operator Seat.

Solenoid - Differential Lock.

Switch - Differential Lock.

Switch - Pressure Filter.

Switch - Hydraulic Oil Temperature.

Connection for Beacon Kit.

Switch - Neutral/Starter Interlock.

Battery.

74-09-009

924618

70-09-148

995713

92462 5

70-01-512

924608

63-06-082

16259-60250

70-09-108

953819

910627

924624

940852

995711

70-09-015

Switch - Engine Oil Pressure.

Starter Motor.

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1.77

ELECTRICAL CIRCUIT DIAGRAM

1.77

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1.78

ELECTRICAL CIRCUIT DIAGRAM

ITEM NO.

DESCRIPTION

PART NO.

45.

46.

47.

48.

49.

50.

51.

52.

53.

54.

55.

56.

57.

58.

Alternator/Regulator.

Engine Temperature Sender (supplied with temp kit).

Glow Plugs.

Switch - Engine Overheat.

Solenoid - Fuel

Engine.

(SA 4259-12)

950950

910850

910627

Hourmeter.

Switch - Return filter.

Solenoids - Work/Transport Mode.

Fuse - Engine Glow plugs 60A

Fuse - Main 60A

Diode - Parking Brake

Diode - Seat Switch

Relay - Seat Switch

950868

70-09-148

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1.79 TRANSMISSION / BRAKE - HYDRAULIC CIRCUIT

1.79

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1.80

TRANSMISSION / BRAKE - HYDRAULIC CIRCUIT

ITEM NO.

DESCRIPTION

PART NO.

Motor - Front Wheel Twinlock - 332cc/Rev

Manifold - Front Transmission

Valve - Solenoid - Work/Transport

Valve - Pilot Operated - Diff Lock

Relief Valve - Serial Lines - 80 bar

Valve Solenoid - Diff Lock

953686

953682

953683

Relief Valve - Front Motor - 375 Bar

Flow Divider - Front Wheels

Valve - Pilot Operated - Diff Lock

Shuttle Valve - Hot Oil Purge

Relief Valve - Hot Oil Purge

Relief Valve - Serial Line - 375 Bar

Wheel Motor - Rear - 130cc/Rev

Pump - Transmission - 52cc/Rev

Relief Valve - Charge Pump - 29 Bar

Relief Valves - Fwd/Rev - 350 Bar

Oil Cooler

Filter - Charge - 10 Micron

Filter - Return - 10 Micron

Hydraulic Oil Tank

Check Valve - Transmission Fwd/Rev

Suction Strainer - 125 Micron

Valve - Brake

953687

953710

953685

953684

950606

950597

924865

953802

950608

70-06-015W

Check Valve

Orifice - 1.5mm Dia.

953910KG141004

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1.81

HYDRAULIC CIRCUIT DIAGRAM

1.81

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1.82

HYDRAULIC CIRCUIT DIAGRAM

ITEM NO.

DESCRIPTION

PART NO.

Gear pump - Centre Cutterhead Drive.

Gear pump - Wing Cutterhead Drive.

Gear pump - Steering and Cutterhead Lift

Relief Valve - Steering 110 bar

74-06-154

Steering Unit

910649W

70-01-195W

Check Valve - Steering Shock Bypass R.H.

Check Valve - Steering Shock Bypass L.H.

Relief Valve - Steering Shock L.H.

Relief Valve - Steering Shock R.H.

Steering Cylinder - Rear Axle

Spool Valve - Cutterhead Lift L.H.

Spool Valve - Cutterhead Lift Centre

Spool Valve - Cutterhead Lift R.H

Solenoid Valve 131 or 212 R.H

Solenoid Valve 131 or 212 L.H.

953609

953603

910109W

953603

70-06-245

70-06-246

910699

910709

910708

953601

940602

953601

940602

953601

910696

953600

953610

953601

910696

953601

940602

Hydraulic Cylinder - RH Wing Cutterhead.

Hydraulic Cylinder - RH Front Cutterhead.

Hydraulic Cylinder - Centre Cutterhead.

Hydraulic Cylinder - LH Front Cutterhead.

Hydraulic Cylinder - LH Wing Cutterhead.

Solenoid Valve Assembly - Cutterhead Drive (2- pl).

Solenoid Cutting Cylinders Forwards (2-pl).

Solenoid Cutting Cylinders Reverse (2-pl).

Cutter Drive Control Manifold Front and Centre.

Restrictor Valve - Variable Weight Transfer.

Relief Valve - Cutterheads Front and Centre - 250 bar

Diverter Valve - Centre Cutterhead.

Hydraulic Motor - Centre Cutterhead.

Check Valve/Orifice - Motor Bypass Centre Cutterhead.

Diverter Valve - L.H. Front Cutterhead.

Hydraulic Motor - L.H. Front Cutterhead.

Check Valve/Orifice - L.H. Front Cutterhead.

Diverter Valve - R.H. Front Cutterhead.

Hydraulic Motor - R.H. Front Cutterhead.

Check Valve/Orifice - R.H. Front Cutterhead.

Cutter Drive Control Block Wing Cutterhead.

Relief Valve - Wing Cutterhead - 250 bar.

Diverter Valve - R.H. Wing Cutterhead.

Hydraulic Motor - R.H. Wing Cutterhead.

Check Valve/Orifice - R.H. Wing Cutterhead.

Diverter Valve - L.H. Wing Cutterhead.

Hydraulic Motor - L.H. Wing Cutterhead.

Check Valve/Orifice - L.H. Wing Cutterhead.

Test Point - Cutterhead Drive - Wing.

Test Point - Cutterhead Drive - Front & Centre.

Test Point - Weight Transfer.

910615

950616

910616

910641

950608

950606

924865

953802

Front Transmission Manifold.

Return Bypass Manifold.

Check Valve - Oil Cooler Bypass - 4 bar.

Suction Strainer.

Oil Cooler.

Return Filter - Bypass Check Valve - 2 Bar.

Oil Tank.

Orifice - Wing Cutterhead Hydraulic Cylinder 1.4mm (2 pl).65-06-019

953910KG141004

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1.83

WARRANTY

1.83

WARRANTY

HAYTER LIMITED warrants to the original user / purchaser that this unit shall be free from defects in

material and workmanship for a period of 12 calendar months from the date of delivery. This warranty

excludes proprietary items which have the benefit of the supplying manufacturer’s warranty.

Engine manufacturers furnish their own warranties and provide services through their authorised network.

If you experience any difficulty please contact your specialist Hayter dealer.

It is the end user’s / purchaser’s responsibility to ensure that the service schedule and service book as

applied are acted upon. HAYTER LIMITED reserve the right to request inspection of a service book,

where relevant at any reasonable time. Failure to keep the service schedule up to date may invalidate the

warranty. Owners should therefore satisfy themselves that the products are operated and serviced correctly,

particularly where they are operated on a contract or hire basis.

This warranty which is not capable of assignment does not apply to any unit that has been tampered with,

altered, misused or abused and will become invalid if non genuine Hayter parts are fitted. This

warranty does not cover minor adjustments unless they are due to defective materials or workmanship.

Consult the operators manual or your authorised Hayter dealer for assistance when making these

adjustments.

To make a warranty claim, contact your authorised Hayter dealer through whom the machine was

originally supplied, indicating the machine serial number and purchase date. Subject to the conditions and

exclusions in this warranty, the authorised dealer will at our option, repair or replace any warranted part

within the duration of the warranty period.

This warranty gives you specific legal rights and is in addition to any statutory rights to which you may be

entitled and your statutory rights are not affected by this warranty. If you need additional information

concerning this written warranty or assistance in obtaining services please write or telephone : HAYTER

LIMITED, Service Department, Spellbrook, Bishop's Stortford, Herts., CM23 4BU.

Telephone : (01279) 723444.

953910KG141004

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1.84

NOTES

953910KG141004

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1.85

CUSTOMER INFORMATION

1.85

MACHINE DETAILS

Model:

Machine Serial No.:

Engine Serial No.:

Cutterhead Serial No.s:

Transmission Pump Serial No.:

Transmission Valve Block Front Serial No.:

Cutter Control Valve (Front & Centre) Serial No.:

Cutter Control Valve (Wing) Serial No.:

953910KG141004

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