Hayter Mowers Lawn Mower 481A User Guide

Harrier  
48  
CODE 481A  
(Electric Start)  
OWNER’S HANDBOOK  
(English Version)  
FROM SERIAL NO: 481A001001  
Issue : 22.10.01  
HANDBOOK: 481145 (Rev.1.)  
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CONTENTS  
1.1 Main Features/Specifications  
1.2 Contents  
1.17 Maintenance Schedule  
1.18 - 1.24 Mower Maintenance  
1.18  
1.18  
1.18  
1.19  
1.19  
1.20  
1.20  
1.20  
1.21  
1.21  
1.21  
1.22  
1.22  
1.23  
1.23  
1.24  
1.25  
- Engine  
1.3 Introduction  
- Throttle Cable Adjustment  
- Carburettor Adjustments  
- Oil Service  
- Air Cleaner Service  
- Spark Plug Service  
- Keeping Engine Clean  
- Grassbag  
1.4 Warranty  
1.5 - 1.8 Safety Precautions  
1.8 Safety Symbols  
1.8 Decal Symbols  
- Deck Housing  
- Securing Nuts and Bolts  
- Clutch Cable Adjustment  
- Lubrication  
- Cutterblade Removal  
- Cutterblade Assembly  
- Cutterblade Sharpening  
- Storage  
1.9 Assembling the Mower  
1.9  
1.9  
1.9  
1.9  
- Delivery Checklist  
- Handlebar  
- Adjust Handlebar Height  
- Grassbag Attachment  
1.10 Before Starting the Engine  
- Battery Charging  
1.10  
1.10  
1.10  
1.10  
- Prevent Engine Damage  
- Oil Type  
- Check Oil Level  
- Fuel Type  
1.26 - 1.27 Trouble Shooting  
1.28 Declaration of Conformity  
1.29 - 1.31 Parts List  
1.11 - 1.14 Operating The Mower  
1.11  
1.11  
- Controls  
- Starting Step 1  
1.32 Parts list Diagram  
1.11  
1.11  
-
-
Step 2  
Step 3  
1.33 Customer Info/Notes  
1.12  
1.12  
- Forward Travel  
- Turning  
1.12  
- Stopping  
1.12  
- Slopes  
1.13  
- Height of Cut  
1.13  
1.13  
- Before Mowing  
- Grassbag  
1.13  
1.14  
1.14  
- Without Grass Collection  
- Heavy Growth  
- Friction Disc  
1.14  
1.15 - 1.16  
1.16  
- Non-Grassed Areas  
- Lawn Care Calendar - Guide Only  
- Lawn Stripes  
1.3  
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INTRODUCTION  
Thank you for purchasing a Hayter mower. The following pages are designed to help you gain  
safe and efficient service from your mower.  
IMPORTANT: This ‘Owners Handbook’ should be regarded as part of the mower as it gives  
essential information regarding mower safety, operation, maintenance and specifications. Read  
and understand this handbook prior to operating your mower for the first time. Make sure you  
are familiar with all the controls and points of regular maintenance. If you have any doubts,  
consult your local Hayter authorised dealer who will be pleased to give you assistance.  
IMPORTANT: This mower is designed solely for use in a domestic grass cutting  
environment. 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  
handbook also constitute essential elements of the intended use.  
This mower should be operated, serviced and repaired only by persons who are familiar with  
its particular characteristics and who are acquainted with the relevant safety procedures.  
The safety precautions listed in this handbook and all other generally recognised regulations on  
safety must be observed at all times.  
Any arbitrary modifications carried out to this machine may relieve Hayter Limited of  
liability for any resulting damage or injury.  
Hayter mowers are robustly constructed and designed for efficient economical  
performance under normal mowing conditions. Correct operation and maintenance will ensure  
a long and satisfactory service life. Prior to despatch from our factory every effort is made to  
ensure that your mower is delivered in perfect condition.  
Throughout this handbook all references to left and right are as viewed from behind the han-  
dlebar, in the direction of forward travel.  
This handbook is based on information available at the time of publication.  
HAYTER LIMITED reserve the right to amend product specifications without prior notification.  
1.4  
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WARRANTY  
LIMITED WARRANTY  
Hayter Limited warrants to the original user/purchaser that this unit shall be free from defects  
in material and workmanship under normal use and service for a period of three years from the  
date of purchase. The manufacturer of the engines furnish their own warranty and services are  
provided through their authorised network (Refer to "Engine Warranty Statement"). To qualify  
for the full benefit of the warranty, the warranty registration card must be returned within 60 days  
of purchase. Subject to the conditions and exclusions noted in this limited warranty, we shall at  
our option, repair or replace any warranted part during the applicable period. If you are in doubt  
or experience any difficulty, please consult a Hayter Authorised Service Dealer for clarification.  
To qualify for the extended warranty (second and third year) of the three year limited warranty  
the machine must have annual services carried out by an Authorised Hayter Service Dealer.  
These chargeable services should be carried out within 12 and 24 months of the date of purchase.  
Excluded from the extended warranty period are those items which are subject to normal wear  
and tear e.g. tyres, wheels, cutterblades, cables, batteries and other consumable wearing parts.  
All consumer machines which are fitted with a genuine Hayter friction disc as original  
equipment before use, are covered by a Lifetime Warranty against the engine crankshaft  
bending. Note: friction washers, blade brake units and other such devices are not applicable.  
Only machines fitted with a genuine Hayter friction disc, which are used in accordance with the  
recommended operating and maintenance procedures, are covered.  
This warranty does not apply to any unit that has been tampered with, altered, misused, abused or  
used for hire, and will become invalid if non genuine Hayter parts are fitted. This warranty does  
not cover minor mechanical adjustments unless they are due to defective material or  
workmanship. Consult the Owner’s Handbook or a Hayter Authorised Service Dealer for  
assistance when making these adjustments.  
A warranty period of 90 days applies to machines used for commercial purposes.  
To make a warranty claim, return the unit to a Hayter authorised dealer along with proof of  
purchase stating the machine serial number and date of purchase. The service receipt(s) or this  
Owners Handbook with the 1st/2nd year service boxes fully completed, must be produced as  
proof of entitlement to the extended warranty period. Subject to the conditions and exclusions in  
this limited warranty, the authorised dealer will, at our option, repair or replace any warranted  
part within the duration of the warranty period.  
This limited 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 to : HAYTER LIMITED, Service Department, Spellbrook, Bishop’s Stortford,  
Hertfordshire CM23 4BU  
UK ONLY: Details of your local Hayter authorised dealer are contained in Yellow Pages or  
contact:- Freephone 0800 616298.  
1st Year  
Service  
Record  
2nd Year  
Service  
Record  
Date....................................................................  
Signed................................................................  
Date.............................................................  
Signed..........................................................  
1.5  
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SAFETY PRECAUTIONS  
Safety Alert Symbol  
This safety alert symbol indicates important safety messages. When  
you see this symbol be alert to the possibility of injury. Carefully read  
the following and inform others.  
Your mower is perfectly safe if used correctly. Failure to observe the  
following precautions may result in serious injury.  
Training  
Before using the mower read the owners handbook carefully. Pay par-  
ticular attention to the safety precautions. Ensure that you are 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.  
Never mow while people, especially children, or pets are nearby.  
Keep in mind that the user is responsible for accidents or hazards  
occurring to other people or their property.  
Preparation  
While mowing, always wear substantial footwear and long trousers.  
Do not operate the equipment when barefoot or wearing sandals.  
Thoroughly inspect the area where the mower is to be used and remove  
all objects which may be thrown by the machine.  
WARNING: Petrol is highly flammable.  
- Store fuel in containers specifically designed for this purpose.  
- Add fuel before starting the engine. Never remove the cap from the  
fuel tank or add petrol while the engine is running or when the engine  
is hot. Allow the engine to cool for at least two minutes before refu-  
elling.  
- Do not attempt to start the engine if petrol is spilled or a smell of  
petrol is present. Move the mower away from the area of spillage  
and avoid creating any source of ignition until petrol vapours have  
dissipated.  
1.6  
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SAFETY PRECAUTIONS  
Preparation  
- Always use fresh fuel. Stale fuel can block the carburettor and cause  
leakage.  
- Replace fuel tank and oil tank caps securely.  
A damaged cutterblade or loose fixing bolt are major hazards. Before  
use, always visually inspect the cutting mechanism to ensure that it is  
in good condition. A damaged cutterblade must be replaced immedi-  
ately with a genuine Hayter replacement part  
Operation  
Do not operate the engine in a confined space where exhaust fumes  
(carbon monoxide) can collect. Refuel outdoors only and do not smoke  
while refuelling.  
Always pull the starter cord slowly until resistance is felt. Then pull  
the cord rapidly to avoid kickback and prevent hand or arm injury.  
Mow only in daylight or good artificial light.  
Avoid using the mower on wet grass, where feasible.  
Always be sure of your footing on slopes.  
Walk, never run.  
Mow across the face of slopes, never up and down.  
Exercise extreme caution when changing direction on slopes.  
Do not mow excessively steep slopes of more than 20 degrees.  
Use extreme caution when reversing or pulling the mower towards you.  
Stop the engine before moving the mower across areas other than grass.  
Never operate the mower unless the guards are securely in position and  
in good condition.  
Do not change the engine governor settings or overspeed the engine.  
Disengage the rear roller drive clutch before starting the engine.  
Start the engine carefully, with feet well away from the cutterblade.  
1.7  
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SAFETY PRECAUTIONS  
Operation  
Do not tilt the mower when starting the engine.  
Do not put hands or feet near or under rotating parts.  
Never pick up or carry the mower while the engine is running.  
Never lift the rear deflector while the engine is running.  
Never touch the exhaust/exhaust guard or cooling fins when the engine  
is hot.  
Stop the engine and disconnect the spark plug lead:  
- Before clearing blockages or unclogging the discharge chute.  
- Before cleaning/checking or working on the mower.  
- After striking a foreign object. Inspect the mower for damage and  
ensure necessary repairs are made before re-starting.  
- If the mower starts to vibrate abnormally (check immediately).  
Stop the engine:  
- Whenever you leave the mower.  
- Before refuelling.  
Maintenance & Storage  
Keep all nuts, bolts and screws tight to ensure that the equipment is in  
safe operating condition.  
Frequently check fuel lines and fittings for cracks or leaks and replace  
if necessary.  
Never check for a spark when the spark plug is removed. (Use approved  
tester)  
Inspect the exhaust periodically and replace if worn or leaking.  
Never crank the engine with the spark plug removed.  
Never start the engine with the air-cleaner or air-cleaner cover  
removed.  
Never store the mower with petrol in the tank within an enclosed area  
where fumes may reach an open flame or spark.  
1.8  
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SAFETY PRECAUTIONS  
Maintenance & Storage  
Allow the engine to cool before storing in any enclosure. To reduce the  
fire hazard, keep the engine and the surrounding deck area free of  
grass, leaves, or excessive grease.  
Check the rear deflector and grassbag frequently for wear or deterioration.  
Replace worn or damaged parts for safety.  
If the fuel tank has to be drained, this should be done outdoors and  
when the engine is cool.  
Wear strong work gloves when removing and reassembling the cut-  
terblade.  
Always replace worn or faulty parts with genuine Hayter parts.  
Safety Symbols  
Danger of being hit by thrown  
objects.  
Safety Alert - Be aware to the  
possibility of injury.  
Danger of severing toes or fin-  
gers in cutting mechanism.  
Carefully read the Owners  
Handbook before using the  
machine.  
Stop engine and remove spark  
plug lead before working on  
the mower.  
Keep bystanders at a safe  
distance from the mower.  
Decal Symbols  
Engine Stop (Symbol)  
Height of Cut Adjustment (Symbol)  
Throttle Control (Symbols)  
STOP  
305113  
CS198  
1.9  
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ASSEMBLING THE MOWER  
Delivery Checklist  
Remove the mower from the packaging and check that the following  
items have been supplied correctly. If any items are missing contact,  
your local Hayter dealer.  
1. Engine Handbook.  
2. Warranty Reg. Card.  
3. Grassbag.  
4. Charger  
5. Ignition Key  
To prevent accidents cut off the long ribbon attached to the grass-  
bag and discard.  
Handlebar  
Unscrew the handlebar securing knobs sufficiently to allow the handle-  
bar to pivot. Move the engine stop lever away from the engine to avoid  
damage and unfold the handlebar to the operating position. Tighten both  
handlebar knobs to secure the handlebar in position.  
Take care to ensure that the control cables do not become snagged at  
the pivot point.  
Adjust Handlebar Height  
Unscrew the two larger knobs at base of handlebar sufficiently to allow  
it to be moved to the upper, middle or lower position. Ensure both  
sides are set to the same height and secure in the required position.  
Grassbag Attachment  
Raise the rear deflector, lower the grassbag through the handlebar and  
hook in position. Lower the deflector to rest on the grassbag  
1.10  
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MOWER  
BEFORE STARTING THE  
Prevent Engine Damage  
To prevent engine damage the engine is shipped without oil or  
petrol. The engine must be filled with the correct grade of oil and  
petrol before starting the engine.  
Oil Type  
Always use high quality detergent oil classified “For service SE, SF,  
SG” SAE 30 oil. Never use additives with recommended oils.  
SAE 10W-30 multigrade oil may be used, but this will result in higher  
engine operating temperatures with consequential high oil consump-  
tion. It is imperative that the oil level is checked more frequently if this  
grade of oil is used in order to guard against serious engine damage.  
To prolong the life of your engine it is important that the oil is changed  
after the first 5 hours of use - refer to ‘Maintenance Schedule’.  
Check Oil Level  
0.15  
Clean around the oil filler cap before removing. With the mower on a  
level surface, unscrew and remove the oil filler - dipstick. Wipe oil  
Litres  
from it with a clean cloth. Screw the oil filler - dipstick back in place,  
then unscrew and remove it to check the oil level.  
The oil level is correct when it is at the full mark on the dipstick.  
15C  
DO NOT OVERFILL.  
Fuel Type  
Always use clean, fresh unleaded petrol. Purchase fuel in quantities  
that can be used within 30 days. Never mix oil with petrol. For added  
engine protection Briggs & Stratton recommend the use of their fuel  
additive which is available from an authorised Briggs & Stratton ser-  
vice dealer.  
Fill to base of neck to allow for fuel expansion. Do not overfill the  
fuel tank.  
1.11  
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OPERATING THE MOWER  
Controls  
Operate all control levers several times and ensure that the cables  
move freely. Check that the engine stop and ground drive clutch levers  
return freely to their rest position when released.  
Whilst operating the engine throttle mechanism slight resistance  
should be felt when moving the lever to the ‘choke’ position.  
Starting - Step 1  
Move the throttle control lever to the ‘choke’ position before starting  
a cold engine. Move the throttle control lever to the ‘fast’ position  
before starting a warm engine.  
Step 2  
Using your left hand turn the ignition key clockwise and hold in posi-  
tion to crank the engine. When the engine sarts release the key and set  
the throttle to the fast position if initially in the choke position.  
The engine stop lever must be held firmly against the handlebar to  
start and keep the engine running. If the engine stop lever is  
released the engine will stop.  
CS075  
IMPORTANT: PREVENT ENGINE DAMAGE: Do not use the  
ignition key when the engine is running.  
Note: If necessary the engine can be started manually with the use of  
the engine start grip.  
Step 3  
Allow the engine to warm up and move the throttle lever to the ‘fast’  
position after starting a cold engine.  
To prevent damage never pull the engine start grip when the  
engine is running.  
1.12  
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OPERATING THE MOWER  
Forward Travel  
Hold the handlebar and operate the ground drive clutch lever to power  
the mower in a forward direction.  
When the ground drive clutch lever is disengaged the mower may be  
pushed. This feature is useful when mowing in confined areas.  
If the engine stop lever is released the engine will stop.  
Turning  
To make a wide turn steer the mower with the handlebar in the direc-  
tion required.  
To make a tight turn release the ground drive clutch lever, apply down-  
ward pressure on the handlebar to raise the front wheels just above  
ground level and steer in the required direction.  
To prevent accidents do not raise the front of the mower exces-  
sively when making a turn. Never raise the rear of the mower  
when the engine is running.  
Stopping  
Release the ground drive clutch lever, reduce the throttle setting and  
release the engine stop lever.  
Emergency stop: Release both ground drive clutch lever and engine  
stop lever together.  
If the engine fails to stop, move the throttle lever to the ‘slow’ posi-  
tion and disconnect the spark plug lead.  
STOP  
Slopes  
To prevent engine damage do not use the mower on slopes greater  
than 20 degrees.  
1.13  
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OPERATING THE MOWER  
Height of Cut  
+
Move the height of cut lever sideways to disengage it from the locking  
notch, then push forwards to lower or pull backwards to raise the height  
of cut. Release the lever in the required position and ensure that it locks  
firmly into one of the seven notch settings.  
-
Always select a height of cut to suit operating conditions. Prevent  
engine overloading and blockages by avoiding low cuts in long grass  
conditions. Be prepared to make two cuts when the grass is long.  
305113  
Before Mowing  
To prevent accidents thoroughly inspect the area and remove all  
objects which when contacted by the mower cutterblade could  
become dangerous projectiles. Inspect the area for hidden obstruc-  
tions which when contacted by the cutterblade could risk health  
and safety. Remember the location of these obstructions and  
ensure that you mow around them.  
Grassbag  
Raise the rear deflector and lift the grassbag through the handlebar and  
lower the rear deflector to rest against the rear of the mower.  
To empty the grassbag, pour out the grass clippings and shake the  
grassbag vigorously to clean the airways. Good grass collection  
depends on good air flow through the grassbag. When collecting grass  
clippings it is important that the grassbag is emptied regularly to pre-  
vent blockages and engine overloading.  
Without Grass Collection  
Remove the grassbag and operate the mower with the rear deflector in  
the closed position.  
1.14  
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OPERATING THE MOWER  
Heavy Growth  
Areas of heavy growth should be mown without collecting the clip-  
pings. If collection is required, first mow the area without the grass-  
bag at the maximum height of cut setting. Allow the grass clippings to  
dry out and then mow the area at the maximum height of cut setting  
with the grassbag fitted. Reduce the height of cut and mow the area  
again as necessary until the required finish is obtained.  
305113  
To prevent grass damage do not remove more than one third of grass  
height in one cut.  
Friction Disc  
The cutterblade is driven by the engine via a friction disc to help pre-  
vent damage occurring to the engine crankshaft and cutting mecha-  
nism when a hidden obstruction or overload is encountered.  
Always stop the engine when a hidden obstruction or excessive vibra-  
tion is encountered. Disconnect the spark plug lead and examine the  
cutting mechanism. ALWAYS replace a damaged cutterblade - refer to  
“Maintenance”.  
Non-Grassed Areas  
When moving the mower across non-grassed areas, stop the engine  
and set the mower to the maximum height of cut to protect the cutting  
mechanism.  
STOP  
1.15  
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LAWN CARE CALENDAR  
To be used as a guide only.  
January  
There is very little work to do this month apart from brushing away  
leaves. Keep off the grass if frozen or waterlogged.  
February  
Rake the grass thoroughly. Spike the lawn to aerate and stimulate soil  
organisms and root growth and apply lawn sand if necessary.  
March  
The yearly lawn work programme really starts this month. As soon as  
the ground conditions are suitable, the first cut can be made. The first  
cut should merely “top” the grass as close cutting at this stage could  
result in severe yellowing or browning. Two cuts are generally suffi-  
cient this month.  
April  
Mow often enough to stop grass growing away. Dig out patches of  
coarse grass or resistant weed. Re-seed bare patches.  
May  
Keep mowing increasing the frequency as required. Treat with selec-  
tive weed killers or combined weed/feed preparations if you did not  
feed the lawn in April.  
June  
Summer mowing should now be under way. It should be necessary to  
mow the lawn twice a week. Raking before mowing is important this  
month as the combined action keeps runners of clover under control.  
Water the grass if necessary, and remember to soak thoroughly.  
July  
Treat the grass with the second application of fertiliser or weed  
killer/fertiliser. Water when necessary and rake occasionally. As a gen-  
eral rule the grass clippings should be removed each time you mow. If  
weather conditions are dry and hot and the grass is weed free, leave the  
clippings on the lawn to help maintain ground moisture.  
1.16  
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LAWN CARE CALENDAR  
August  
Keep mowing regularly and watering as necessary. Fill any cracks  
caused by drought with a mixture of sharp sand and soil. In dry weath-  
er conditions leave the grass longer to help retain ground moisture.  
September  
Raise the height of cut to allow the grass to thicken and protect the  
roots from the winter frost and snow.  
October  
Rake out the thatch from the turf and spike the lawn to assist in  
drainage. Brush in peat and sharp sand.  
November  
Use a stiff broom to disperse worm casts before mowing. Keep turf  
free from leaves.  
December  
Apart from brushing away leaves, December is a slack end of a busy  
year. Keep off the lawn if it is very wet or frozen.  
Lawn Stripes  
1
The way to achieve a neat striped effect is for the lawn being cut in  
parallel stripes, alternate stripes being mown in opposite directions. A  
much more important routine is to cut at right angles to the line of the  
previous mowing. If the work has been carried in a north-south line,  
then the next cutting should be in an east-west direction. The cross-  
cutting keeps down the coarse weed grasses.  
2
1CG480V05A  
To prevent grass damage do not remove more than one third of the  
grass height in one cut.  
1.17  
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MAINTENANCE SCHEDULE  
Follow the hourly or calendar intervals, whichever occurs first. More  
frequent service will be required if working for prolonged periods  
under dusty, dry conditions, or when airborne debris is present or after  
extensive operation cutting tall, dry grass.  
First 5Hrs  
After the very first five hours change the engine oil  
Daily  
Check the oil level  
Remove grass debris from around the engine, exhaust/exhaust guard and  
air ways in the top cowl and underside of the deck housing.  
Remove grass debris from the grassbag and check for signs of damage.  
Check the condition of guards and safety devices.  
Check condition of cutterblade.  
25Hrs or Every Season  
Change the engine oil if continuously operating under heavy load or  
high ambient temperature.  
Service the air cleaner.  
Lubricate wheels, pivot points and linkages and grease the inner con-  
trol cables at point of entry and exit from their outer casing.  
Check the clutch cable adjustment.  
Sharpen the cutterblade.  
50Hrs or Every Season  
Change the engine oil.  
100Hrs or Every Season  
Clean the engine cooling system. Clean more often under dusty condi-  
tions or when airborne debris is present or after prolonged operation  
whilst cutting tall, dry grass.  
Replace the spark plug.  
1.18  
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MOWER MAINTENANCE  
To prevent accidents stop the engine disconnect the spark plug  
lead before attempting to carry out maintenance procedures on  
the mower.  
Engine  
1. Engine Cowl  
2. Carburettor  
8
7
6
3. Spark Plug / Lead  
4. Muffler Guard  
5. Muffler  
9
6. Oil filler Cap/ Dipstick  
7. Start Grip  
8. Fuel Cap  
9. Finger Guard  
10. Air Cleaner  
10  
1
2
5
4
3
Throttle Cable Adjustment  
2
Remove two screws securing the engine cowl and remove the cowl to  
expose the throttle mechanism on the front of the engine. Loosen the  
outer cable clamp screw (1) and move the governor control lever (2) to  
the left as far as possible. Insert a large, flat blade screw driver (3) into  
the slot in the engine control bracket (4) at the angle shown. Push the  
governor control lever to the right until it just touches the screw driver  
blade. Move the throttle control lever to the ‘fast’ position (not the  
‘choke’ position) and re-tighten the outer cable clamp screw. Replace  
the engine cowl.  
3
1
4
Carburettor Adjustments  
Should only be made by an authorised Briggs & Stratton dealer. Under  
no circumstances should the engine be adjusted to run at a speed in  
excess of that shown on the Declaration of Conformity.  
1.19  
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MAINTENANCE  
Oil Service  
MOWER  
Check the oil level daily before starting the engine and ensure that the  
correct oil level is maintained. Refer to-‘Before Starting the Mower’  
for oil checking and filling instructions.  
Change the engine oil after the first 5 hours of operation and thereafter  
according to the ‘Maintenance Schedule’:-  
1. Drain fuel by running the engine until the fuel tank is empty.  
2. Remove the spark plug lead.  
3. Allow the engine to cool.  
4. Drain the oil while the engine is warm.(Not hot)  
5. Tip the mower over on to its left hand side thus ensuring that  
the air cleaner is kept uppermost to prevent engine damage.  
6. Remove the oil filler dipstick and drain the oil into a suitable  
container.  
7. Refill with new oil of the recommended SAE viscosity grade.  
(Refer to-‘Before Starting the Mower’)  
Air Cleaner Service  
4
3
1
To service the air cleaner, loosen screw (1) and remove cover (2).  
Carefully remove pre-cleaner (3) and wash in a solution of liquid  
detergent and water. Allow to air dry thoroughly before fitting.  
Remove cartridge (4) and clean by tapping gently on a flat surface. If  
very dirty, replace.  
5
2
- Do not use petroleum solvents.  
- Do not use pressurised air.  
- Do not oil the cartridge.  
After servicing, install the pre-cleaner and cartridge in the cover.  
Insert the tabs on the bottom of the cover into the slots in the bottom  
of the base (5). Tilt the cover upwards and securely tighten the screw  
to the base.  
1.20  
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MOWER MAINTENANCE  
Spark Plug Service  
Use only Briggs & Stratton spark tester (1) to check for a spark as  
shown in the diagram.  
Replace the spark plug every 100 hours or every season, whichever  
occurs first. A spark plug wrench is available from any authorised  
Briggs & Stratton service dealer.  
1
Check the spark plug gap with a feeler gauge and set at 0.76mm.  
Keeping Engine Clean  
Remove all grass and debris from the engine including the  
exhaust/exhaust guard, the air ways in the top cowl and the surround-  
ing deck areas on a daily basis after use. Never spray the engine with  
water during cleaning. Water can contaminate the fuel. Always clean  
with a brush or compressed air.  
Grass and debris may clog the engine’s air cooling system especially  
after prolonged operation while cutting tall, dry grass. The internal cool-  
ing fins and surfaces may require cleaning to prevent overheating and  
engine damage. We recommended that this service be carried out by an  
authorised Briggs and Stratton dealer.  
Grassbag  
Remove grass debris from the grassbag immediately after use and  
check its condition for signs of damage.  
To prevent accidents replace a damaged grassbag immediately.  
1.21  
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MAINTENANCE  
Deck Housing  
MOWER  
Remove grass debris from the top and underside of the deck housing  
immediately after use.  
To prevent accidents fertilisers and top dressings are particularly  
corrosive. Thoroughly clean the mower deck immediately after use  
on treated grass and store well away from corrosive materials.  
Securing Nuts & Bolts  
Regularly check that all securing nuts and bolts are tight. Replace  
missing or damaged items immediately.  
1CG480V36B  
Clutch Cable Adjustment  
32-38mm  
Check the clutch cable operation every 25 operating hours and adjust  
if necessary. The clutch cable is adjusted correctly when the belt drive  
just engages with the clutch lever positioned 32-38mm from the han-  
dlebar.  
Unscrew the lock nuts (1) and screw the adjuster (2) in or out as nec-  
essary. Tighten the locknuts (1) when correctly adjusted.  
1
2
1.22  
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MOWER MAINTENANCE  
Lubrication  
Lubricate the wheels, pivot points and linkages with engine oil every 25  
operating hours.  
Apply a good quality medium grease to the inner control cables at the  
point of entry and exit from their outer casing.  
Cutterblade Removal  
Drain the fuel by running the engine until the fuel tank is empty and the  
engine stops. Remove the spark plug lead and allow the engine to  
cool. Turn the mower on its left hand side and ensure that the air clean-  
er side of the engine is uppermost.  
Firmly grip the end of the cutterblade with the gloved hand and remove  
the bolt, spring washer and distance piece securing the cutterblade with  
a 9/16” A/F spanner.  
33C  
To prevent accidents never work on the cutterblade unless the  
spark plug lead has been removed. The cutterblade has sharp  
edges. ALWAYS wear strong gloves to protect your hands when  
working on the cutterblade. DO NOT rotate tools towards the cut-  
ting edges to avoid the risk of injury should the tool slip. ALWAYS  
use genuine Hayter replacement parts.  
The condition of the cutterblade and its mounting arrangement should  
be checked regularly for signs of wear or damage. Ensure that the cut-  
terblade is not bent or cracked.  
A damaged cutterblade that is out of balance will vibrate excessively  
and may break. DO NOT use an unbalanced cutterblade.  
Regularly check that the bolt securing the cutterblade is tightened to the  
specified torque of 54Nm.  
Replace the cutterblade every 2 years of sooner if excessively worn or  
damaged.  
To prevent injury it is wise to seek assistance when turning the mower  
on its side.  
1.23  
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MAINTENANCE  
MOWER  
Cutterblade Assembly  
Assemble the cutterblade with the turned up edges facing towards the  
engine. Secure the cutterblade using the bolt (1), spring washer (2), and  
distance piece (3) and tighten to a torque of 54Nm  
1
3
2
Cutterblade Sharpening  
30°-45°  
A slightly worn cutterblade may be re-sharpened. Both blade edges  
must be sharpened equally to ensure balance. Sharpen the cutterblade  
every 25 mowing hours or more frequently if conditions require.  
Remove the cutterblade from the mower and clean using a brush and  
water. Inspect the cutterblade for signs of damage.  
Sharpen both cutting edges with a flat file to restore performance.  
Ensure that the cutterblade is balanced. Use a screw driver with a  
round shaft to support the cutterblade through its centre hole. Hold the  
cutterblade horizontal and then release. A balanced cutterblade will  
remain horizontal.  
If the cutterblade is not balanced the heavy end will rotate downwards.  
Sharpen the heavy end until the cutterblade is correctly balanced.  
1.24  
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MOWER MAINTENANCE  
Storage  
To store the handlebar unscrew the 2 small securing knobs sufficient-  
ly to allow it to be pivoted forwards to rest against the mower. Take  
care to ensure that the control cables do not become snagged at the  
pivot point and depress the engine stop lever to prevent it being dam-  
aged through contact with the engine spark plug.  
Engines stored in excess of 30 days need to be protected with Briggs &  
Stratton fuel additive or drained of fuel to prevent gum from forming in  
the fuel system or on essential carburettor parts. To ensure your mower  
is maintained in good working order it is important that the following  
procedure is adopted. Refer to the Maintenance section as necessary.  
Drain fuel from the engine by operating the engine until it stops.  
Disconnect the spark plug lead.  
Change the engine oil.  
Charge the battery.  
Remove the engine spark plug and pour 15ml of engine oil into the  
engine cylinder and replace the spark plug. Do not exceed the stated  
volume of oil as engine damage may occur on re-starting. Do not  
replace the spark plug lead. Slowly pull the engine start - grip once  
to crank the engine. This will distribute the oil and help prevent engine  
corrosion.  
Clean grass and debris from the engine cylinder, cylinder head cooling  
fins, under top cowl, and around and behind exhaust/exhaust guard.  
Clean all other areas of the mower and ensure that the grassbag is clean.  
Lubricate the mower.  
Treat metal parts with a water repellent anti-corrosion product.  
Disconnect the battery leads.  
Cover the mower with a protective sheet and store it in a dry, ventilat-  
ed area.  
1.25  
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MAINTENANCE  
MOWER  
Battery Charging  
PREVENT ACCIDENTS: ALWAYS charge the battery in a well  
ventilated area.  
6hrs  
NEVER charge the battery near naked flames or direct heat.  
ALWAYS switch off the mains electricity supply before discon-  
necting the charger from the battery.  
ALWAYS use the battery charger supplied with the mower.  
Battery charging should not be necessary during normal use. The  
engine operation will automatically charge the battery. If the mower is  
stored for a long period recharging the battery may be necessary to  
permit electric starting.  
Charge the battery only when necessary.  
To recharge the battery:  
Disconnect the battery lead from the mower lead and then connect the  
battery lead to the charger.  
Connect the charger plug to the mains electricity supply and switch on  
to charge the battery for a six hour period.  
Switch off the mains electricity supply and disconnect the charger  
plug.  
Disconnect the battery lead from the charger and then connect  
the battery lead to the mower lead.  
IMPORTANT - PREVENT DAMAGE: NEVER connect the bat-  
tery charger to the engine lead as this will cause the charger to be  
permanently damaged. Chargers damaged in this manner will not  
be replaced under warranty.  
CAUTION - PREVENT ENVIRONMENTAL DAMAGE: The  
battery has a separate collection mark. This indicates that the  
used battery must be taken to an authorised disposal site. It must  
not be disposed of with general waste.  
WS032  
1.26  
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TROUBLE SHOOTING  
PROBLEM  
POSSIBLE FAULT  
REMEDY  
Engine will not turn over  
Engine stop lever released.  
Incorrect oil level.  
Operate engine stop lever.  
Check oil level.  
Obstruction under deck.  
Battery discharge  
Remove obstruction.  
Charge battery  
Engine smokes  
Excess oil level.  
Check oil level.  
Air cleaner cartridge oil  
soaked or blocked.  
Service air cleaner.  
Engine runs then stops  
Engine will not start  
Fuel starvation.  
Fill fuel tank.  
Fuel cap vent blocked.  
Clean fuel cap vent.  
Engine under load.  
Fuel starvation.  
Raise height of cut.  
Fill fuel tank.  
Engine cold.  
Set throttle to ‘choke’ position.  
Incorrect/contaminated fuel.  
Drain fuel tank and fill with  
correct fuel.  
Spark plug lead disconnected.  
Throttle setting incorrect.  
Engine brake not released.  
Faulty spark plug.  
Connect spark plug lead.  
Set throttle to ‘fast’ position.  
Operate engine brake lever.  
Clean and adjust gap or replace.  
Charge battery  
Battery discharge  
Wiring fault.  
Check wiring.  
Engine runs rough  
Spark plug lead becoming  
disconnected in use.  
Connect spark plug lead.  
Faulty spark plug.  
Clean and adjust gap or replace.  
Service air cleaner.  
Air cleaner blocked.  
Incorrect/contaminated fuel.  
Drain tank and fill with correct fuel.  
1.27  
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TROUBLE SHOOTING  
PROBLEM  
POSSIBLE FAULT  
Mounting bolts loose.  
Cutterblade bolt loose.  
Cutterblade out of balance.  
Bent crankshaft.  
REMEDY  
Engine vibrates excessively  
Tighten bolts  
Tighten bolt  
Balance cutterblade  
Consult your dealer  
Uneven cut  
Undulating ground conditions  
Cutterblade worn  
Change direction of travel  
Sharpen the cutterblade  
Cutterblade out of balance  
Wheels / roller damaged  
Balance the cutterblade  
Inspect and replace as necessary  
Discharge chute blocks  
Grass is wet  
Mow dry grass  
Cut height too low  
Grassbag full  
Increase cut height  
Empty grassbag  
Clean the grassbag  
Airflow through the  
grassbag is restricted  
Engine speed too slow  
Set throttle to fast position  
Mower is hard to push  
Mower will not self propel  
Poor grass collection  
Cut height too low  
Increase cut height  
Wheels / roller damaged  
Inspect and replace as necessary  
Clutch out of adjustment  
Drive belt damaged  
Adjust clutch cable  
Replace drive belt  
Airflow through the  
grassbag is restricted  
Clean the grassbag  
Discharge chute blocked  
Wet grass  
Remove blockage  
Mow dry grass  
Grassbag full  
Empty grassbag  
Engine speed too slow  
Set throttle to fast position  
1.28  
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DECLARATION OF CONFORMITY  
EC DECLARATION OF CONFORMITY  
HAYTER LIMITED,  
Spellbrook, Bishop’s Stortford, Herts CM23 4BU ENGLAND  
declare that the lawnmower:  
Models:  
Harrier 48  
Machine Type No.  
Category:  
Type:  
Engine manufacturer:  
Speed of rotation:  
Width of cutting device:  
CODE 481A  
Auto Drive Electric Start  
Pedestrian Rotary  
Briggs & Stratton  
2800 rpm  
480mm  
Speed of rotation of the cutting device: 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.  
Also Directive 89/336/EEC amended by 92/31/EEC Electromagnetic Compatibility.  
Also Directive 2000/14/EC Noise emission in the environment by equipment for use outdoors. (ANNEX VI)  
Notified Body: Sound Research Laboratories Ltd. Holbrook House, Little Waldingfield,  
Sudbury, Suffolk, ENGLAND  
Notified body identification No: 1088  
Measured sound power level:  
Guaranteed sound power level:  
95.0 dB(A)  
96 dB(A)  
Standards Used: EN2921, EN836 and ENISO14982  
Signed  
Date: 30.10.01  
HAYTER LIMITED,  
Spellbrook, Bishop’s Stortford,  
Herts CM23 4BU ENGLAND  
M.A. Wright  
(Technical Director)  
VIBRATION INFORMATION  
Lawnmower vibration information. RMS acceleration measured in 3 - axes at operators contact position on  
the handlebars. CODE 481A = 5 ms-2  
1.29  
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481A  
PARTS LIST  
DESCRIPTION  
ITEM NO  
PART NO.  
QTY ITEM NOTE  
1
2
3
4
5
6
7
8
Mainframe - Casting  
Plate - Location RH  
Clamp - Boss Inner  
Clamp - Boss Outer  
Handwheel - Assy  
Key - Woodruff  
Throttle Control & OPC Cable  
Engine - B/S Diamond  
Decal - Engine  
Knob - Handlebar  
Handlebar - Lower  
Bolt - Handlebar  
Nut - Nylon Insert  
Washer - Plain  
Guide Rope  
Pin - Pivot  
Decal - Engine Stop Transfer  
Lever - Engine  
Washer - Nylon  
Handlebar  
Lever - Clutch  
Screw  
Cable Guide  
Bracket - Cable Clutch  
Screw - Deltite Posi Pan  
Cable - Clutch  
Grassbag - Assy  
Frame - Grassbag  
Deflector - Rear  
Pin - Roll  
Spring - Deflector RH  
Rod - Deflector  
Screw - Hex. Hd. Taptite  
Bolt - Coach  
480010V  
480083V  
480084W  
480085W  
480054  
1662  
488028  
481144  
480142  
480088  
480186W  
226024  
09544  
1
1
2
2
2
1
1
1
1
2
2
2
1
1
1
2
1
1
2
1
1
2
1
1
2
1
1
1
1
1
1
1
2
2
1
1
1
1
2
1
1
XTL45 APTO  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
09472  
305093  
340182  
331046  
340179  
09688  
341029  
306094W  
09687  
480123  
306108  
09600  
480094  
486021  
486018W  
480140  
03997  
Inc. 28, 36 & 112  
480131  
480062  
09758  
09549  
Knob - HOC  
480134  
486019  
480130  
480082V  
480055  
480014  
480050  
Grassbag - Fabric  
Spring - Deflector LH  
Plate - Location LH  
Plate - Handlebar Retainer  
Cover - APTO  
41 Bearing - APTO  
1.30  
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481A PARTS LIST  
ITEM NO  
DESCRIPTION  
PART NO.  
QTY ITEM NOTE  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
Screw - Washer Hd Taptite  
Bush  
Screw - Taptite  
Screw  
09575  
340154  
09349  
3
2
3
2
1
1
1
4
2
2
2
2
22  
2
2
2
1
1
1
1
1
1
1
4
1
1
1
2
1
1
1
1
1
1
2
1
1
1
1
1
1
09634  
Lever - HOC  
480128  
480126  
480011  
09545  
219102  
480151W  
480133  
09262  
Ratchet Moulding HOC  
Throwplate - Main Body  
Screw - Taptite  
Bearing - Roller Housing  
Roller - Rear W/A  
Spring Tension - Rear Axle  
Washer  
Screw - Taptite  
Bush - Oilite Roller  
Roller Freewheel - Rocket Band  
Spacer - Nylon  
Shroud - Freewheel  
Locknut  
09365  
340129  
340150  
340149  
340168  
340163  
480032  
480039  
480159W  
5321  
Shaft - Roller  
Sprocket - 22 Teeth  
Frame - Rear Roller W/A  
Key - woodruff  
Circlip  
Washer  
Cover - Transmission  
Chain  
Rod - Connecting  
Plate - Securing  
Filler - Throwplate  
Pulley - Sprocket Fixed Speed  
Belt - V APTO  
Inc. 113  
1428  
480097  
480043  
486037  
480045  
219037  
480017W  
480171  
480063  
02575  
Washer  
Circlip  
03096  
Pulley - Jockey  
Washer - Starlock  
Bracket - Idler Assy  
Belt Guide  
Pulley - Drive APTO  
Spring - Torsion Idler  
Bush  
219156  
0201086  
480115  
480116  
480038  
480066  
4452  
Washer - M12 H.D.  
09280  
1.31  
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481A PARTS  
LIST  
ITEM NO  
DESCRIPTION  
PART NO.  
QTY  
ITEM NOTE  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
98  
Washer - Spring  
Bolt - UNF  
Distance Piece - Cutterbar  
Cutterbar - 19”  
Cover - Throwplate Drive  
Disc - Friction  
Spacer  
Cap - Hub  
Nut - UNF Nyloc  
Wheel  
Axle - Front W/A  
Moulding - Front Axle Bearing  
Fin - Front Insert  
Decal - Hayter & Royal Warrant  
Nut - M8 Shouldered  
Guide - Rope  
Plug - Tube  
Tie - Cable  
Sealing Strip  
Key - Ignition  
Lid - Battery Box  
Foam Pad - Short  
Battery  
Clamp Plate - Battery Box  
Foam Pad - Long  
Battery Box  
Battery Charger  
Screw - Taptite  
Guard - Transmission  
Handle Grip  
09273  
09121  
4014  
480149  
480012  
480070W  
480072  
219143  
4486  
1
1
1
1
1
1
1
2
2
2
1
2
1
1
2
1
2
3
2
1
1
2
1
1
2
1
1
2
1
1
1
1
2
1
5218  
219031  
219036  
480013  
219186  
480086  
305127  
300160  
3966  
99  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
480119  
6426  
488024  
488023  
220015  
226094  
488021  
226090  
226006  
09546  
480164  
480106  
480157W  
480132  
09336  
Bracket HOC  
Spring Torsion HOC  
Rivet  
Ratchet  
480156  
1.32  
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481A PARTS LIST  
21  
20  
19  
18  
17  
16  
19  
22  
102  
16  
7
15  
25  
14  
13  
10  
26  
9
98  
99  
109  
24  
25  
11  
99  
103  
12  
8
100  
7
11  
7
104  
105  
110  
100  
10  
28  
23  
112  
29  
106  
107  
30  
35  
104  
107  
108  
101  
6
36  
27  
31  
32  
5
-Grassbag Assy.  
Includes Items  
28,36 & 112  
33  
4
47  
97  
34  
3
2
39  
42  
43  
40  
116  
1
37  
41  
38  
3
44  
39  
97  
96  
4
5
70  
52  
53  
54  
60  
45  
48  
56  
49  
50  
65  
57  
58  
57  
54  
49  
55  
56  
59  
54  
88  
89  
51  
52  
54  
90  
91  
51  
54  
87  
62  
63  
111  
50  
54  
69  
74  
73  
26  
55  
54  
76  
79  
68  
49  
92  
82  
83  
61  
64  
93  
94  
86  
78  
69  
65  
71  
85  
84  
72  
81  
49  
68  
92  
75  
76  
80  
94  
54  
77  
54  
67  
66  
91  
42  
46  
95  
114  
90  
54  
115  
54  
113  
1C481V01B  
54  
54  
1.33  
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CUSTOMER INFORMATION /NOTES  
Mower Serial No:.................................................................................  
Engine Model:.................................. Type:....................................... Code:.....................................  
Notes:  
1.34  
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