Gravely Lawn Mower 992042 19HP PM144Z User Manual

Promaster 144Z / 148Z / 152Z / 160Z  
Owner/Operator Manual  
Models  
992042 19HP PM144Z  
992043 21HP PM148Z  
992044 23HP PM152Z  
992051 23HP PM160Z  
992054 25HP PM152Z  
992055 25HP PM160Z  
992064 17HP PM144Z  
992077 19HP PM144Z  
992078 21HP PM148Z  
992079 23HP PM152Z  
992080 23HP PM160Z  
992081 25HP PM152Z  
992082 25HP PM160Z  
992083 17HP PM144Z  
992092 19HP PM144Z  
992093 21HP PM148Z  
992094 23HP PM152Z  
992095 23HP PM160Z  
992096 25HP PM152Z  
992097 25HP PM160Z  
992310 19HP PM144Z  
992311 21HP PM148Z  
US Patent 6,301,864  
ENGLISH  
FRANÇAIS  
ESPAÑOL  
00383400A 3/05  
Printed in USA  
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Notified Body – Organisme notifié – Zertifizierungsstelle –  
Aangemelde instantie – Bemyndiget organ – Organismo  
notificato – Organismo notificado – Teknisk kontrollorgan –  
SNCH  
11, Route de Luxembourg  
L-5230 Sandweiler  
Anmält organ – Ilmoitettu laitos – Organ zaświadczający  
Organismo Certificador –  
Fred J. Moreaux  
11/1/2004  
Quality and Conformance Manager (Keeper of Technical File)  
Responsable de la qualité et de la conformité des produits  
(Dépositaire de la fiche technique) Manager Qualitätssicherung  
und Konformität (Archivar der technischen Akte) Kwaliteits- en  
normalisatiemanager (Beheerder van technische bestand) Chef  
for kvalitet og overensstemmelse (Indehaver af tekniske data)  
Responsabile della qualità e della conformità del prodotto  
(Depositario del file tecnico) Gerente de calidad y conformidad  
(Depositario del archivo técnico) Kvalitet- og samsvarsansvarlig  
(innehaver av teknisk fil) Chef för kvalitet och  
Date Date Datum  
Datum Dato Data  
Fecha Dato Datum  
Päiväys Data Data  
Ariens Company  
Brillion, WI 54110-0157 USA  
Signature Signature Unterschrift  
Handtekening Underskrift Firma  
Firma Signatur Namnteckning  
Allekirjoitus Podpis Assinatura  
produktöverensstämmelse (Innehavare av tekniska data)  
Laadusta ja vaatimustenmukaisuudesta vastaava johtaja  
(Teknisen tiedoston haltija) Kierownik do spraw jakości i  
zgodności (Przechowujący Dokumentację Techniczną) Gestor de  
Qualidade e Conformidade (Zelador de Arquivos Técnicos)  
CE Sound and Vibration – Bruits et vibrations CE –  
CE, melu ja tärinä – CE Dźwięku i Wibracji – Som e  
Vibração CE – (Ref. EN836-2001)  
CE Geräusch- und Vibrationswerte – CE Geluid en  
trilling – CE støj og vibration – Livello sonoro e  
vibrazioni CE – Sonido y vibración CE – CE-lyd og  
-vibrasjon – CE ljudnivå och vibrationer –  
Model: Modèle : Modell: Model: Model: Modello: Modelo: Modell: Modell: Malli: Model:  
Modelo:  
992310  
992311  
Oper. Ear Sound Pressure (Lpa) in dBA – Pression acoustique aux oreilles de l’opérateur (Lpa) en  
dBA – Geräuschpegel am Ohr des Bedieners (Lpa) in dBA – Geluidsdruk bij het oor van de gebruiker  
(Lpa) in dBA – Strøjtryk ved brugerens øre (Lpa) målt i dBA – Pressione sonora all’orecchio  
dell’operatore (Lpa) in dBA – Presión de sonido en el oído (Lpa) in dBA – Lydtrykk ved førerens øre  
(Lpa) inn dBA – Ljudeffekt vid förarens öron (Lpa) i dBA – Kuljettajan korvaan kohdistuva äänenpaine  
(Lpa), dBA – Robocze ciśnienie akustyczne na uchu (Lpa) w decybelachA – Oper. Pressão do Som no  
Ouvido (Lpa) em dBA –  
90  
92  
Vibration Measure (m/sec2) at Operator Mesure des vibrations (m/s2) au niveau de l’opérateur  
Vibration (m/s2) an des Bedieners Gemeten trilling bij (m/sec2) Vibrationsmålinger (m/s2) ved  
brugerens Vibrazioni percepite dall’operatore (m/sec2) Medida de vibración (m/seg2) en el operador  
Vibrasjonsmåling (m/s2) ved førerens Vibrationsmått (m/s2) vid förarens Tärinä (m/s2) kuljettajan  
Pomiar wibracji (m/sec2) u operatora Medida de Vibração (m/seg.2) no Operador  
Hands – Mains – Hände – De handen van de gebruiker – Hænder – Mani – Manos – Hender –  
Händer – Käsissä – Ręce – Mãos –  
X
Y
Z
<2.5  
<2.5  
<2.5  
<2.5  
<2.5  
<2.5  
Feet – Pieds – Füße – De voeten van de gebruiker – Fødder – Piedi – Pies – Føtter – Fötter –  
<2.5  
<2.5  
<2.5  
<2.5  
<2.5  
<2.5  
Jaloissa – Stopy – Pés –  
X
Y
Z
Seat – Siège – Sitz – De bestuurdersplaats – Sæde – Sedile – Asiento – Sete – Säte –  
Istuimella – Siedzenie – Assento –  
<2.5  
<2.5  
<2.5  
<2.5  
<2.5  
<2.5  
X
Y
Z
3
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TABLE OF CONTENTS  
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Controls and Features. . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . 15  
Service and Adjustments . . . . . . . . . . . . . . . . . . . . . . . 17  
INTRODUCTION  
THE MANUAL  
PRODUCT REGISTRATION  
Before operation of unit, carefully and completely read your  
manuals. The contents will provide you with an  
understanding of safety instructions and controls during  
normal operation and maintenance.  
The Gravely dealer must register the product at the time of  
purchase. Registering the product will help the company  
process warranty claims or contact you with the latest  
service information. All claims meeting requirements during  
the limited warranty period will be honored, whether or not  
the product registration card is returned. Keep a proof of  
purchase if you do not register your unit.  
All reference to left, right, front, or rear are given from  
operator sitting in the operation position and facing the  
direction of forward travel.  
Customer Note: If dealer does not register your product,  
please fill out, sign and return the product registration card to  
SERVICE AND REPLACEMENT PARTS  
When ordering publications, replacement  
Transfer  
parts, or making service inquiries, know the  
model &  
UNAUTHORIZED REPLACEMENT PARTS  
Model and Serial numbers of your unit and  
serial  
engine.  
Use only Gravely replacement parts. The replacement of  
any part on this equipment with anything other than a  
Gravely authorized replacement part may adversely affect  
the performance, durability, and safety of this unit and may  
void the warranty. Gravely disclaims liability for any claims or  
damages, whether regarding warranty, property damage,  
personal injury or death arising out of the use of  
number  
label from  
product  
Numbers are located on the product  
registration form in the literature package.  
They are printed on a serial number label,  
located on the frame of your unit (Figure 1).  
registration  
here.  
unauthorized replacement parts.  
NOTE: To locate your nearest Gravely dealer, call  
Serial Number Label  
DISCLAIMER  
Gravely reserves the right to discontinue, change, and  
improve its products at any time without public notice or  
obligation to the purchaser. The descriptions and  
specifications contained in this manual were in effect at  
printing. Equipment described within this manual may be  
optional. Some illustrations may not be applicable to your  
unit.  
OF3510  
Figure 1  
• Record Unit Model and Serial numbers here.  
DEALER DELIVERY  
Dealer should:  
1. Test brakes after unit is assembled to be sure  
adjustment has not been disturbed in shipment (See  
are properly adjusted at factory.  
• Record Engine Model and Serial numbers here.  
Copyright 2005 Ariens Company  
GB - 4  
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2. Check the safety interlock system to make sure that it  
is functioning properly. With operator on seat, unit must  
not start unless steering levers are in neutral (N) and  
Power Takeoff (PTO) is disengaged (Off). Engine must  
stop if operator leaves seat when steering levers are in  
any drive position or PTO is engaged (On). See Safety  
5. Explain recommended lubrication and maintenance.  
Advise customer on adjustments. Instruct customer on  
controls and operation of unit. Discuss and emphasize  
the Safety Precautions. Give customer  
Owner/Operator, Parts, and Engine Manuals. Advise  
customer to thoroughly read and understand them.  
Customer Note: Your Dealer has been provided complete  
setup and preparation instructions which must be completed  
prior to you taking delivery of this unit. The dealer is required  
to review important information in this manual with you  
before or upon delivery of the unit or attachment.  
3. Fill out Original Purchaser Registration Card and  
return the card to Gravely.  
4. Explain Gravely Limited Warranty Policy.  
SAFETY  
SIGNAL WORDS  
The safety alert symbols above and signal words below are  
used on decals and in this manual.  
WARNING: This cutting machine is capable of  
amputating hands and feet and throwing objects.  
Failure to observe the safety instructions in the  
manuals and on decals could result in serious injury  
or death.  
Read and understand all safety messages.  
DANGER: IMMINENTLY HAZARDOUS  
SITUATION! If not avoided, WILL RESULT in death  
or serious injury.  
Slopes are a major factor related to loss-of-control  
and tip-over accidents. Operation on all slopes  
requires extra caution.  
Tragic accidents can occur if the operator is not  
alert to the presence of children. Never assume that  
children will remain where you last saw them.  
WARNING: POTENTIALLY HAZARDOUS  
SITUATION! If not avoided, COULD RESULT in  
death or serious injury.  
Gasoline is extremely flammable and the vapors  
are explosive, handle with care.  
Disengage attachment, stop unit and engine,  
remove key, engage parking brake, and allow  
moving parts to stop before leaving operator’s  
position.  
CAUTION: POTENTIALLY HAZARDOUS  
SITUATION! If not avoided, MAY RESULT in minor  
or moderate injury. It may also be used to alert  
against unsafe practices.  
SAFETY ALERT SYMBOL  
These are safety alert symbols. They mean:  
ATTENTION!  
NOTATIONS  
NOTE: General reference information for proper operation  
and maintenance practices.  
IMPORTANT: Specific procedures or information required to  
prevent damage to unit or attachment.  
YOUR SAFETY IS INVOLVED!  
OL1253  
When you see this symbol:  
BECOME ALERT!  
PRACTICES AND LAWS  
•OBEY THE MESSAGE!  
Practice usual and customary safe working precautions, for  
the benefit of yourself and others. Understand and follow all  
safety messages. Be alert to unsafe conditions and the  
possibility of minor, moderate, or serious injury or death.  
Learn applicable rules and laws in your area, including those  
that may restrict the age of the operator.  
OL3900  
REQUIRED OPERATOR TRAINING  
Original purchaser of this unit was instructed by the seller on  
safe and proper operation. If unit is to be used by someone  
other than original purchaser (loaned, rented or sold),  
ALWAYS provide this manual and any needed safety  
training before operation.  
GB - 5  
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SAFETY DECALS AND LOCATIONS  
ALWAYS replace missing or damaged Safety Decals. Refer  
to Figure 2 for Safety Decal locations.  
7
3
6
1
5
4
3
2
OF1626  
Figure 2  
Go up and down slopes, not across.  
DO NOT operate on slopes over 17°.  
1. DANGER! TO AVOID SERIOUS INJURY OR  
DEATH  
Read Owner/Operator Manual.  
OL4450  
• If machine stops going uphill, stop blade and back down  
slowly.  
OL1801  
• Avoid sudden turns.  
Keep children and others away from unit while  
operating.  
• Keep safety devices (guards, shields, switches, etc.) in  
place and working.  
• Check interlock system per manual before use.  
• Understand location and function of all controls.  
• Never allow operation by untrained persons.  
OL4370  
Never direct discharge toward other people.  
Thrown objects can cause injury. Remove  
objects that could be thrown by the blade.  
2. PINCH POINT (992042, 043, 044, 051, 054,  
055, 077, 078, 079, 080, 081, 082, 310, 311)  
Avoid pinch points.  
OL0910  
Look down and behind before and while backing.  
OF3330  
OL4460  
Keep children out of work area and under  
watchful care of a responsible adult.  
3. DANGER! ROTATING PARTS  
Always keep feet and hands away from rotating  
parts.  
OL4470  
NEVER CARRY CHILDREN.  
OL3030  
Always stand clear of discharge area. Do not  
direct discharge toward other people.  
OL4480  
OL0910  
GB - 6  
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Keep people away from unit while operating.  
Determine which attachments are needed and can be used  
safely.  
Inspect unit before each use for: missing or damaged decals  
and shields, correctly operating safety interlock system, and  
deterioration of grass catchers. Replace or repair as  
needed.  
OL3292  
Shut off engine, remove key, read manual before  
you adjust or repair unit.  
ALWAYS check overhead and side clearances carefully  
before operation. ALWAYS be aware of traffic when  
operating along streets or curbs.  
OL4010  
NO STEP! Always keep feet away from rotating  
parts.  
Keep children and people away.  
Keep children out of work area and under watchful care of a  
responsible adult.  
OL4420  
Keep area of operation clear of all toys, pets, and debris.  
Thrown objects can cause injury.  
4. WARNING!  
Do not operate mower unless guards are in operating  
position or bagger is attached.  
Check for weak spots on docks, ramps or floors. Avoid  
uneven work areas and rough terrain. Stay alert for hidden  
hazards or traffic.  
Always stand clear of discharge area.  
DO NOT operate near drop-offs, ditches, or embankments.  
Unit can suddenly turn over if a wheel is over the edge of a  
cliff or ditch, or if an edge caves in.  
Data indicates that operators, age 60 and above, are  
involved in a larger percentage of riding mower related  
injuries. These operators should evaluate their ability to  
operate the riding mower safely enough to protect  
themselves and others from serious injury.  
OL4430  
Do not operate mower unless bagger is attached  
or guards are in operating position.  
OL3320  
Read the entire Owner/Operator manual and other training  
material. If the operator or the mechanic cannot read the  
manual, it is the owner’s responsibility to explain it to them.  
Only the user can prevent and is responsible for accidents or  
injuries occurring to themselves, other people or property.  
5. HOT SURFACES!  
DO NOT touch parts which are hot from  
operation. ALWAYS allow parts to cool.  
Only trained adults may operate or service unit. Training  
includes actual operation.  
OS0731  
Local regulations may restrict the age of the operator.  
6. ROTATING PARTS  
NEVER allow children to operate or play on or near unit. Be  
alert and shut off unit if children enter area.  
AVOID INJURY. Stay clear of rotating parts.  
NEVER operate unit after or during the use of medication,  
drugs or alcohol. Safe operation requires your complete and  
unimpaired attention at all times.  
OF3450  
DO NOT wear loose clothing or jewelry and tie back hair that  
may get caught in rotating parts.  
7. DANGER!  
AVOID INJURY. Stay clear of rotating parts.  
Wear adequate outer garments.  
NEVER wear open sandals or canvas shoes during  
operation. Wear adequate safety gear, protective gloves and  
footwear.  
OL4730  
SAFETY RULES  
Wear proper footwear to improve footing on slippery  
surfaces.  
Read, understand, and follow all safety practices in  
Owner/Operator Manual before beginning assembly. Failure  
to follow instructions could result in personal injury and/or  
damage to unit.  
Always wear safety goggles or safety glasses with side  
shields when operating mower.  
Moving parts can cut or amputate fingers or a hand. Wrap  
blade(s) or wear gloves to service. On multiblade mowers,  
rotation of one blade will cause all blades to rotate.  
ALWAYS remove key and/or wire from spark plug before  
assembly. Unintentional engine start up can cause death or  
serious injury.  
NEVER place your hands or any part of your body or  
clothing inside or near any moving part while unit is running.  
Complete a walk around inspection of unit and work area to  
understand:  
• Work area • Your unit • All safety decals  
GB - 7  
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ALWAYS keep hands and feet away from all rotating parts  
during operation. Rotating parts can cut off body parts.  
DO NOT operate in reverse unless absolutely necessary.  
ALWAYS look down and behind before and while backing.  
ALWAYS keep body and hands away from pin holes or  
nozzles which eject hydraulic fluid under pressure.  
Stop and inspect equipment if you strike an object or if there  
is an unusual vibration. Repair, if necessary, before  
restarting. Never make adjustments or repairs with the  
engine running.  
DO NOT touch parts which are hot. Allow parts to cool.  
ALWAYS keep hands and feet away from all pinch points.  
Mower blades are sharp and can cut you. Wrap the blade(s)  
or wear gloves, and use extra caution when servicing them.  
NEVER weld or straighten mower blades.  
Fumes from the engine exhaust can cause death or serious  
injury. DO NOT run engine in an enclosed area. Always  
provide good ventilation.  
Rotation of one blade may cause rotation of the other  
blades.  
Read, understand, and follow all instructions in the manual  
and on the machine before starting.  
Take all possible precautions when leaving unit unattended.  
Shut off engine. Remove wire from spark plug and secure it  
away from spark plug.  
Understand:  
• How to operate all controls  
• The functions of all controls  
• How to STOP in an Emergency  
• Braking and steering characteristics  
• Turning radius and clearances  
ALWAYS remove key to prevent unauthorized use.  
Know the weight of loads. Limit loads to those you can  
safely control and the unit can safely handle.  
Disengage PTO when attachment is not in use. ALWAYS  
turn off power to attachment when travelling, crossing  
driveways, etc.  
Keep safety devices or guards in place and functioning  
properly. NEVER modify or remove safety devices.  
Mow up and down slopes, not across them.  
Do not operate without either entire grass catcher or the  
discharge guard in place.  
DO NOT operate on slopes of more than 17 degrees.  
Stop engine before removing grass catcher or unclogging  
chute.  
Use of a Rollover Protection System (ROPS) is  
recommended for slope operation. See Attachments and  
Accessories.  
Ensure Safety Interlock System is functioning properly. DO  
NOT operate unit if safety interlock is damaged or disabled.  
Always wear a seat belt when operating unit using a  
Rollover Protection System (ROPS).  
Start and operate unit only when seated in operator’s  
position. Steering control levers must be in neutral, PTO  
disengaged and parking brake set when starting engine.  
Keep all movements on the slope slow and gradual. Do not  
make sudden changes in speed or direction.  
Use care when approaching blind corners, shrubs, trees or  
other objects that may obscure vision.  
Avoid starting or stopping on the slope. If tires lose traction,  
disengage the blades and proceed slowly straight down the  
slope.  
Dust, smoke, fog, etc. can reduce vision and cause an  
accident. Mow only in daylight or good artificial light.  
If you cannot back up a slope or you feel uneasy on it, do not  
mow it.  
Avoid slippery surfaces. Always be sure of your footing.  
DO NOT park on slopes unless necessary. When parking on  
slope always chock or block wheels. Always set parking  
brake.  
DO NOT mow on wet grass. Reduced traction could cause  
sliding and effect the machine’s stability.  
Watch for traffic when operating near or crossing roadways.  
Never carry passengers.  
Use a slow speed. Tires may lose traction on slopes even  
though the brakes are functioning properly.  
DO NOT try to stabilize the machine by putting your foot on  
the ground.  
Do not bypass transmission when on a slope.  
Tow only with a machine that has a hitch designed for  
towing. Do not attach towed equipment except at the hitch  
point.  
Never direct discharge towards persons or property that may  
be injured or damaged by thrown objects. Use extreme  
caution on gravel surfaces.  
Follow the manufacturer’s recommendations for weight  
limits for towed equipment and towing on slopes.  
Always stand clear of the discharge area.  
ALWAYS disengage PTO, stop unit and engine, remove key,  
engage parking brake and allow moving parts to stop before  
leaving operator’s position.  
NEVER allow children or others in or on towed equipment.  
On slopes, the weight of the towed equipment may cause  
loss of control.  
Never engage PTO while raising attachment or when  
attachment is in raised position.  
Travel slowly and allow extra distance to stop.  
Use extra care when loading or unloading unit onto trailer or  
truck.  
DO NOT operate at too fast a rate. DO NOT change engine  
governor settings or over-speed engine. Slow down before  
turning.  
Secure unit chassis to transport vehicle. NEVER secure  
from rods or linkages that could be damaged.  
GB - 8  
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DO NOT transport machine while engine is running.  
ALWAYS block wheels and know all jack stands are strong  
and secure and will hold weight of unit during maintenance.  
ALWAYS turn off power to attachment and shut off fuel when  
transporting unit.  
Release pressure slowly from components with stored  
energy.  
Keep unit free of debris. Clean up oil or fuel spills.  
NEVER attempt to make any adjustments to unit while  
engine is running (except where specifically recommended).  
Stop engine, remove key or spark plug wire and wait for all  
moving parts to stop before servicing or cleaning.  
This product is equipped with an internal combustion type  
engine. DO NOT use unit on or near any unimproved,  
forest-covered or brush covered land unless exhaust system  
is equipped with a spark arrester meeting applicable local,  
state or federal laws. A spark arrester, if it is used, must be  
maintained in effective working order by operator.  
Check parking brake operation frequently. Adjust and  
service as required.  
Fuel is highly flammable and its vapors are explosive.  
Handle with care. Use an approved fuel container.  
ALWAYS maintain unit in safe operating condition. Damaged  
or worn out muffler can cause fire or explosion.  
NO smoking, NO sparks, NO flames. ALWAYS allow engine  
to cool before servicing.  
Maintain or replace safety and instruction labels, as  
necessary.  
NEVER fill fuel tank when engine is running or hot from  
operation.  
NEVER store unit with fuel in fuel tank, inside a building  
where any ignition sources are present.  
NEVER fill or drain fuel tank indoors.  
Shut off fuel and allow engine to cool completely before  
storing in closed area or covering unit.  
Replace fuel cap securely and clean up spilled fuel.  
Clean grass and debris from unit, especially from around  
muffler and engine, to help prevent fires.  
Never fill containers inside a vehicle or on a truck or trailer  
bed with a plastic liner. Always place containers on the  
ground away from your vehicle before filling.  
For extended storage, shut off fuel and clean unit thoroughly.  
See engine manual for proper storage.  
When practical, remove gas-powered equipment from the  
truck or trailer and refuel it on the ground. If this is not  
possible, then refuel such equipment on a trailer with a  
portable container, rather than from a gasoline dispenser  
nozzle.  
Lower cutting deck unless a positive mechanical lock is  
used.  
Use only attachments or accessories designed for your unit.  
Check all hardware at regular intervals, especially blade  
attachment bolts. Keep all hardware properly tightened.  
Keep the nozzle in contact with the rim of the fuel tank or  
container opening at all times until fueling is complete. Do  
not use a nozzle lock-open device.  
Check attachment components frequently. If worn or  
damaged, replace with manufacturer’s recommended parts.  
If fuel is spilled on clothing, change clothing immediately.  
Avoid Electric Shock. Objects contacting both battery  
terminals at the same time may result in injury and unit  
damage. DO NOT reverse battery connections.  
Reverse connections may result in sparks which can cause  
serious injury. Always connect positive (+) lead of charger to  
positive (+) terminal, and negative (-) lead to negative (-)  
terminal.  
ALWAYS disconnect negative (-) cable FIRST and positive  
(+) cable SECOND. ALWAYS connect positive (+) cable  
FIRST, and negative (-) cable SECOND.  
Explosive Gases from battery can cause death or serious  
injury. Poisonous battery fluid contains sulfuric acid and its  
contact with skin, eyes or clothing can cause severe  
chemical burns.  
No flames, No sparks, No smoking near battery.  
ALWAYS wear safety glasses and protective gear near  
battery. Use insulated tools.  
DO NOT TIP battery beyond a 45° angle in any direction.  
ALWAYS keep batteries out of reach of children.  
Battery posts, terminals and related accessories contain  
lead and lead compounds, chemicals known to the State of  
California to cause cancer and reproductive harm. Wash  
hands after handling.  
GB - 9  
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ASSEMBLY  
Connect Battery  
WARNING: AVOID INJURY. Read and understand  
entire Safety section before proceeding.  
Connect negative (–) battery cable to battery (see Replace  
Battery on page 19 and perform steps 2 through 3 in the  
installation section).  
UNIT ASSEMBLY  
Check Engine Oil  
Refer to Engine Manual.  
Package Contents:  
Unit, Mower Deck and Literature Pack  
Check Hydraulic Oil  
Unpack Unit  
Remove unit and all other components from shipping  
container. Open bypass valves (see MOVING THE UNIT  
container onto a level surface. Close bypass valves.  
Position Deflector - 60-Inch Decks  
WARNING: Discharge chute must pivot freely. DO  
NOT over tighten the pivot bolts.  
Check Tire Pressure  
See SPECIFICATIONS on page 28.  
Remove, reverse, and reinstall discharge chute and  
mounting bracket.  
Position Steering Levers  
Fill Fuel Tank  
Remove bolts and spacers from steering levers. Flip the  
steering levers into operating position. Reinstall spacers,  
bolts and nuts. Tighten hardware securely. See Figure 3.  
Hardware  
Check for loose hardware.  
3
Check Safety Interlock System  
WARNING: Safety interlock system failure and  
improper operation of unit can result in death or  
serious injury. Test this system each time unit is  
operated. If this system does not function as  
described, do not operate until repairs are made.  
2
2
Level Mower Deck  
1
Check Function of All Controls  
Ensure unit runs and performs properly.  
1. Steering Lever in  
Shipping Position  
2. Spacers and Hardware  
3. Steering Lever in  
Operation Position  
WARNING: FAILURE OF CONTROLS could result  
in death or serious injury.  
OF3520  
Figure 3  
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CONTROLS AND FEATURES  
1. Choke Control  
2. Throttle Lever  
3. Wing Knob  
4. Hydraulic Oil Reservoir  
5. Fuel Tanks and Caps  
6. Steering Levers  
7. Battery  
23  
8. Mower Lift Lever  
(992042, 043, 044, 051,  
054, 055, 077, 078, 079,  
080, 081, 082, 310, 311)  
9. Fuel Shut Off Valve  
10. Mower Deck with Chute  
Deflector  
11. Cylinder Stops  
12. Height of Cut Indicator  
13. Foot Board Latch  
14. Cylinder Stop Storage  
Post  
15. Mower Lift Pedal  
(992064, 083, 092, 093,  
094, 095, 096, 097)  
16. Mower Lift Lock (992064,  
083, 092, 093, 094, 095,  
096, 097)  
OF3312  
17. Parking Brake  
18. Seat Adjustment Lever  
19. Power Take Off (PTO)  
Switch  
20. Ignition Switch  
21. Eye-Q™ (992077, 078,  
079, 080, 081, 082, 083  
and 992310 and 311 with  
serial number range  
Figure 4  
greater than 3,000)  
22. Oil Pressure Indicator  
23. Hour Meter (992042, 043,  
044, 051, 054, 055, 064,  
092, 093, 094, 095, 096,  
097)  
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OPERATION  
Steering Levers  
WARNING: AVOID INJURY. Read and understand  
entire Safety section before proceeding.  
CONTROLS and FEATURES  
See Figure 4 for Controls and Features locations.  
B
D
A
C
Safety Interlock System  
WARNING: Safety interlock system failure and  
improper operation of unit can result in death or  
serious injury. Test this system each time the unit is  
operated. If this system does not function as  
described, do not operate until repairs are made.  
The steering levers control speed and direction. In addition,  
they will stop the unit.  
A. For reverse travel, pull both steering control levers  
backward.  
Perform the following tests to ensure the safety interlock  
system is working properly. If the unit does not perform as  
stated, contact your Gravely dealer for repairs.  
B. For straight forward travel, push both steering control  
levers forward.  
C. To turn left, pull the left back or push the right steering  
control lever forward or a combination of both.  
IMPORTANT: With the parking brake engaged, the steering  
levers must be locked in neutral.  
D. To turn right, pull the right back or push the left steering  
control lever forward or a combination of both.  
IMPORTANT: With the parking brake disengaged, the  
engine must not start and the engine must shut off if the  
operator leaves the seat.  
To stop, return both steering levers to neutral.  
NOTE: The steering controls are mechanically locked in  
neutral whenever the parking brake is engaged.  
Test Steering  
Levers  
PTO  
Parking  
Brake  
Engine  
NOTE: Aggressive turning can scuff or damage lawns.  
ALWAYS keep both wheels rotating when making sharp  
turns. DO NOT make turns with inside wheel completely  
stopped. To obtain minimum turning radius, slowly reverse  
inside wheel while moving outside wheel slowly forward.  
STARTING INTERLOCK  
1
2
3
Neutral  
Neutral  
Neutral  
Off  
On  
Off  
Engaged  
Engaged  
Starts  
Doesn’t Start  
Doesn’t Start  
Disengaged  
OPERATING INTERLOCK (ENGINE ON)  
Ignition Switch  
4*  
5*  
Neutral  
Neutral  
On  
Off  
Engaged  
Shuts Off  
Shuts Off  
Operate the ignition switch with the  
Disengaged  
removable key. The switch has three  
positions: Off (1), On (2) and Start (3). To  
start the engine, turn the key to Start, then  
release to On. To stop the engine, turn the  
* Operator lifts off seat.  
Eye-QTM (992077, 078, 079, 080, 081, 082, 083 and  
992310 and 311 with serial number range greater  
than 3,000)  
key to Off.  
OF1750  
Monitors equipment performance,  
operator performance, and  
equipment maintenance. See  
Eye-Q Owner’s Manual for how to  
access these features.  
Choke Control  
Push the choke lever forward to start a cold  
engine. Pull the choke lever to the rear when  
the engine gets warm.  
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Throttle Lever  
Changes the engine speed.  
Fast (1) – Increases engine speed.  
Mower Lift Pedal (992064, 083, 092, 093, 094, 095,  
096, 097)  
1
OF1700  
To Transport: Push mower lift pedal (1) all the way forward  
until lift lock (2) engages.  
To Set Cutting Height: Put cutting height adjustment pin in  
desired hole. Push mower lift pedal (1) forward and hold  
while pushing down on the lift lock (2). Slowly lower mower  
lift pedal (1) until deck lift contacts cutting height adjustment  
pin.  
Slow (2) – Decreases engine speed.  
Fuel Shut-Off Valve  
2
OF1700  
Control fuel flow from left or right fuel tank.  
Power Take Off (PTO) Switch  
Power take off (PTO) switch engages and  
Open the valve to operate the engine. Turn  
the valve to Off when storing or transporting  
the unit.  
disengages the mower blades.  
1
2
Pull the power take off (PTO) switch to On  
position to engage mower blades (1).  
OF1881  
Parking Brake Lever  
Push the power take off (PTO) switch to Off  
position to disengage mower blades (2).  
1. Pull lever up to engage parking brake.  
2. Push lever down to disengage parking  
brake.  
NOTE: The engine will not start unless the  
steering control levers are in the neutral posi-  
tion, the PTO switch is in the Off position and  
parking brake is set.  
OF1740  
OE0261  
Seat Adjustments  
Mower Lift Lever (992042, 043, 044, 051, 054, 055,  
077, 078, 079, 080, 081, 082, 310, 311)  
WARNING: Make all seat adjustments with unit  
stationary, parking brake on and engine shut off.  
Raises and lowers the mower deck.  
1
To lower (1) – Move mower lift lever forward.  
To adjust seat forward or backward:  
1. While seated, pull seat adjustment lever outward and  
slide seat into desired position.  
2. Release lever and slide seat forward or back to lock  
seat into position.  
2
To raise (2) – Move mower lift lever rearward.  
Engine Oil Pressure Indicator  
Release lever to hold the mower deck in  
selected position.  
Indicator lights up Red if the oil pressure is  
low. Check oil level and add if necessary.  
Refer to engine manual.  
OF1700  
Cylinder Stops  
OG0601  
CAUTION: AVOID PINCH POINTS. Always use the  
T-portion of the cylinder stop when removing or  
installing the cylinder stops.  
Hour Meter  
Records total number of hours the engine  
has been run.  
IMPORTANT: Keep a record of Hour Meter  
readings for recommended Lubrication and  
Maintenance intervals.  
Ensure the same cutting height after raising the deck to clear  
an obstacle. Store the stops on the post behind the hydraulic  
lift cylinder. The stops come in two (2) sizes, 11/32 in.  
(8.73 mm) and 11/16 in. (17.5 mm).  
NOTE: For accurate readings be sure Igni-  
tion Switch is OFF when unit is not in opera-  
tion.  
1. Remove the cylinder stops from the post and snap  
onto the lift cylinder rod.  
2. Push the lift lever forward until the cylinder rests  
against the cylinder stops.  
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FILLING FUEL TANK  
STARTING AND SHUT OFF  
WARNING: AVOID INJURY. Read and understand  
entire Safety section before proceeding.  
CAUTION: Read entire Owner/Operator Manual,  
Clutch Manual, and Engine Manual first. DO NOT  
attempt to start engine at this time.  
Add fuel to Fuel Tank as needed. See your Engine Manual  
for correct type and grade of fuel.  
NOTE: DO NOT operate starter more than 15 seconds per  
minute, as overheating and damage can occur. If engine will  
not start, see TROUBLESHOOTING on page 26 or refer to  
Engine Manual.  
To add fuel to the fuel tank:  
1. Place unit in an open or well-ventilated open area.  
2. Stop the engine.  
NOTE: The engine will not start unless the steering control  
levers are in the neutral position, the PTO switch is in the off  
position, and parking brake is engaged.  
3. Clean the fuel cap and the area around the fuel cap to  
prevent dirt from entering the fuel tank. Remove the  
cap from the fuel tank.  
To start:  
1. If the engine is cold, move the choke control to the On  
position. If the engine is warm or hot, do not use  
choke.  
4. Fill the fuel tank to within 1 in. (25 mm) below bottom of  
filler neck.  
5. Replace fuel cap and tighten.  
6. Clean up any spilled fuel.  
2. Move the throttle to 3/4 Fast position. See Engine  
Manual for detailed instructions.  
3. Put the ignition key in the switch and turn it to the Start  
position.  
PRE-START  
4. As soon as the engine starts, release the key.  
CAUTION: Make sure all hardware is tight, all  
safety devices are in place and all adjustments are  
made correctly.  
5. Move the choke control to the Off position from the  
Choke position. Wait until the engine is running  
smoothly before operation.  
1. Check Safety Interlock System  
If this system does not function as described do not operate  
until repairs are made.  
To shut off:  
1. Bring the steering levers to neutral. Disengage the  
PTO and engage the parking brake.  
2. Check Air Cleaner  
Check air filter for dirt. Clean as required. Follow Engine  
Manual Maintenance Schedule.  
2. Move the throttle lever to the Slow position.  
3. Turn the ignition key to the Off position.  
OPERATING MOWER  
1. Start engine.  
3. Check Engine Fuel and Crankcase Oil  
Check and add fuel if required. Check that engine crankcase  
oil is full. Follow Engine Manual Maintenance Schedule.  
2. Move throttle lever 3/4 Fast position.  
IMPORTANT: Never engage the PTO if the mower is  
plugged with grass or other material.  
4. Check Tire Pressure  
5. Check Hydraulic Fluid Level  
6. Adjust Seat  
Be sure all controls can be reached safely from operator’s  
position.  
3. Engage PTO to engage mower blades.  
4. Move throttle lever to fast.  
5. Release parking brake.  
7. Set Cutting Height  
Make sure the deck is set to the correct cutting height.  
WARNING: Move the steering control levers slowly  
and keep the throttle control lever at slow speed  
until you learn how to operate the unit.  
STOPPING IN AN EMERGENCY  
6. Use steering levers to move the unit.  
7. Disengage PTO to stop mower blades.  
The unit can be stopped immediately at any time by turning  
the ignition key to the Off position.  
PARKING  
To park the unit:  
1. Bring the steering levers to neutral. Turn off PTO.  
2. Move the throttle lever to the Slow position.  
3. Engage the parking brake.  
4. Lower the attachment.  
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5. Turn the ignition key to the Off position and remove the  
key.  
TRANSPORTING UNIT  
ALWAYS shut off engine, set parking brake, and remove key  
when transporting unit on a truck or trailer. Tie unit down  
securely. Do not tie down by linkages, guards, cables or  
other parts that may be damaged.  
MOVING THE UNIT WITH THE ENGINE OFF  
IMPORTANT: Never tow unit.  
1. Shut OFF engine.  
FOR BEST PERFORMANCE  
Cut grass when it is dry.  
2. Place seat in the service position (See SERVICE  
Keep mower blades sharp.  
3. Turn right and left bypass valve levers  
counterclockwise 1/2 turn (Figure 5).  
Keep mower deck properly leveled.  
Adjust anti-scalp rollers to prevent scalping.  
WARNING: Do not bypass transmission when on a  
slope.  
Do not set height of cut too low. For very tall grass, mow  
twice.  
4. Disengage parking brake.  
Do not travel too fast.  
5. Push unit to desired location.  
6. Engage parking brake.  
Mow with the engine set at full throttle.  
When mulching, only remove 1/3 of grass length per cutting.  
Discharge clippings into areas already cut.  
Vary cutting pattern with each mowing.  
7. Turn bypass valve levers clockwise 1/2 turn.  
Do not allow grass or debris to collect inside of mower deck.  
Clean after each use.  
Front of unit  
1. Left Bypass Valve Lever  
2. Right Bypass Valve Lever  
Figure 5  
OF3371  
MAINTENANCE SCHEDULE  
WARNING: AVOID INJURY. Read and understand  
entire Safety section before proceeding.  
Proper maintenance can prolong the life of unit. The  
following charts show the recommended service schedule.  
More frequent service may be required due to working  
conditions (heavy loads, high ambient temperatures, dusty  
conditions, or airborne debris).  
See the maintenance instructions in the Engine Manual for  
additional information.  
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Interval  
Task  
Action  
WARNING: Safety interlock system failure and improper  
Check Safety Interlock System  
operation of unit can result in death or serious injury.  
Test this system each time the unit is operated. If this  
system does not function as described, do not operate  
Check Parking Brake  
Engage parking brake. Push unit. If unit rolls, adjust parking  
Each  
Use  
Check Hydraulic Oil Level  
Check Tires  
See SPECIFICATIONS on page 28 for correct tire pressure.  
Clean Unit  
Clean engine, battery, seat, mower deck, etc. of dirt and debris.  
Do not use solvents, hard cleaners, or abrasives.  
NOTE: Protect painted surfaces with automotive type wax.  
Follow Engine Maintenance Schedule  
Check Mower Blades  
Perform scheduled engine maintenance. Refer to Engine  
Manual for detailed instructions.  
Ensure mower blade hardware is tightened to 115 – 125 lbf-ft.  
(156 – 169 N•m). Check mower blades for wear. Sharpen or  
replace mower blades as needed (see Sharpen the Mower  
Every 25  
Hours  
Lubricate Front Axle and Pivot Points  
Clean Battery  
Oil all pivot points, pin connections, and apply grease to front  
axle grease zerk (see LUBRICATE UNIT on page 19).  
Every 50  
Hours  
Keep battery and battery terminals clean (see Clean Battery on  
Check Fasteners  
Check mower blade mounting hardware and all other fasteners.  
Replace missing or damaged fasteners. Tighten all nuts and  
bolts to their correct torque value.  
Every  
100  
Check All Belts  
Replace worn or deteriorated belts.  
Hours  
• Check mower drive belt. See Replacing Mower Belts on  
page 22 for belt location.  
• Check PTO belt. See Replacing Mower Belts on page 22  
for belt location.  
• Check transmission belt. See Replacing the Hydro Pump  
Belt on page 22 for belt location.  
Grease Front Axle Castor Pivots  
Change Hydraulic Oil and Filter  
Repack front axle castor pivots (see LUBRICATE UNIT on  
Every  
400  
Hours  
Every  
500  
Hours  
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SERVICE AND ADJUSTMENTS  
Gravely Dealers will provide any service which may be  
HYDRAULIC FLUID  
required to keep your unit operating at peak efficiency.  
Should engine service be required, it can be obtained from a  
Gravely Dealer or the engine manufacturer’s authorized  
service center.  
WARNING: HYDRAULIC FLUID can result in  
severe burns. Fluid in hydraulic system can  
penetrate skin and result in serious injury or death.  
Be sure to stop the engine before doing any work  
on hydraulic parts.  
WARNING: AVOID INJURY. Read and understand  
entire Safety section before proceeding.  
Keep body and hands away from pin holes or  
nozzles which expel hydraulic fluid when under  
pressure. Use paper or cardboard, not hands, to  
search for leaks.  
CAUTION: HOT SURFACES may result in injury.  
DO NOT touch engine or drive parts which are hot  
from operation. Allow parts to cool before servicing.  
Ensure all hydraulic fluid connections are tight and  
all hydraulic hoses and lines are in good condition  
before applying pressure to system.  
SERVICE POSITION  
1. Place unit on a flat level surface. ALWAYS stop engine.  
Ensure unit is secure and will not tip over. Strap and  
clamp onto lift if used.  
FOREIGN FLUID INJECTED INTO BODY can  
result in gangrene. Fluid must be surgically  
removed within a few hours by a doctor familiar with  
this form of injury.  
2. Place steering levers in neutral and engage parking  
brake.  
Check Hydraulic Fluid Level  
3. Remove wing knob or hex nut (992310, 311).  
4. Tip seat forward (Figure 6).  
FULL Mark  
CAUTION: Be sure footing is secure to  
accomodate weight shift of seat when rotating it into  
service position.  
Operating  
Range  
OE0380  
5. When service is complete, lower seat and secure with  
wing knob or hex nut.  
1. Start the unit and run it to operating temperature (about  
10 minutes).  
2. Cycle the control levers forward and backward two or  
three times.  
3
1
2
3. For units equipped with a hydraulic deck lift, raise and  
lower the deck completely two or three times.  
3
4. Shut OFF engine. Engage parking brake. Remove the  
ignition key.  
5. Put seat in service position. See SERVICE POSITION  
6. Remove any dirt that may be around the cap/dipstick  
on the hydraulic reservoir.  
4
7. Remove cap/dipstick.  
8. Check hydraulic oil level mark on cap/dipstick.  
9. Add 15W50 synthetic oil as needed. Do not overfill.  
Change Hydraulic Fluid and Filter  
5
OF3361  
Change the hydraulic oil filter and hydraulic oil every 500  
hours. Use Mobil 1 15W50 synthetic oil for best component  
life.  
1. Service Position  
2. Wing Knob  
3. Steering Levers  
4. Parking Brake  
5. Battery  
1. Clean around dipstick cap and dipstick. Remove  
dipstick.  
Figure 6  
2. Place container under oil filter to catch oil.  
3. Remove oil filter.  
4. Allow tank to drain.  
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5. Lubricate rubber gasket on new oil filter with clean  
hydraulic oil.  
• Blade is bent or broken.  
2. Sharpen mower blade by removing an equal amount of  
material from each end of mower blade. DO NOT  
change angle of cutting edge or round the corner of the  
mower blade.  
6. Spin new oil filter onto filter housing until it makes  
contact. Tighten oil filter another 1/2 turn.  
7. Add new oil to the oil tank. It will take about 4 quarts.  
Use Mobil 1 15W50 synthetic oil for best pump and  
wheel motor life.  
3. Check mower blade balance.  
Slide mower blade on an unthreaded bolt. A balanced  
blade should remain in a horizontal position. If either  
end of mower blade moves downward, sharpen the  
heavy end until blade is balanced.  
8. Properly dispose of waste oil.  
MOWER BLADES  
Remove  
4. Install mower blade(s) on unit.  
5. Tighten the bolts to a torque of 115-125 lbf-ft  
(156-169 N•m).  
CAUTION: Use sturdy gloves or padding to protect  
hands when working with mower blades.  
DO NOT Sharpen to This Pattern  
1. Turn the engine off. Remove the ignition key. Remove  
the ignition wire from the spark plugs.  
2. Block mower blades to prevent rotation.  
3. Remove the bolts, washers, and blades from the  
spindle shafts.  
992042, 044, 054,  
992051, 055, 080, 082,  
064, 077, 079, 081,  
095, 097, 310, 311  
083, 092, 094, 096  
DISCARD if More  
Than 1/2 in. (1.27 cm)  
Sharpen to This Pattern  
Figure 7  
OT0792  
1. Cutting Edge  
2. Square Corner  
3. Air Lift Erosion  
4. Air Lift  
Replace  
1. Replace the blades, washers and bolts on the spindle  
shafts.  
Figure 8  
2. Tighten the bolts to a torque of 115-125 lbf-ft  
(156-169 N•m).  
BATTERY  
3. Replace the ignition wire on the spark plugs.  
WARNING: AVOID INJURY. Read and understand  
entire Safety section before proceeding.  
Sharpen the Mower Blades  
CAUTION: DO NOT sharpen mower blades while  
on unit. An unbalanced mower blade will cause  
excessive vibration and eventual damage to unit.  
Check mower blade balance before reinstalling  
blades.  
WARNING: Battery posts, terminals and related  
accessories contain lead and lead compounds,  
chemicals known to the State of California to cause  
cancer and reproductive harm. Wash hands after  
handling.  
NEVER weld or straighten bent blades.  
Unit comes equipped with a maintenance-free battery that  
requires no regular maintenance except cleaning the  
terminals.  
1. Remove mower blade from unit.  
Discard mower blade if:  
• More than 1/2 in. (1.27 cm) of metal is removed.  
• Air lifts become eroded.  
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IMPORTANT: DO NOT fast charge. Charging at a higher  
rate will damage or destroy battery. ONLY use an automatic  
charger designed for use with your battery.  
Remove Battery  
1. Place seat in the service position (See  
ALWAYS follow information provided on battery by battery  
manufacturer. Contact battery manufacturer for extensive  
instructions to charge battery.  
2. Disconnect negative (–) cable first, then positive (+)  
cable (Figure 9).  
3. Remove holddown and remove battery.  
1. Remove battery from unit. See Remove Battery on  
Replace Battery  
1. Replace battery and secure with battery holddown.  
2. Place battery on bench or other well-ventilated place.  
2. Connect positive (+) cable first, then negative (–)  
cable.  
3. Connect positive (+) lead of charger to positive (+)  
terminal, and negative (–) lead to negative (–) terminal.  
3. Coat terminals with dielectric grease or petroleum jelly.  
4. Return seat to operating position.  
4. Charge battery according to the instructions from  
battery charger manufacturer and battery  
manufacturer.  
Clean Battery  
Keep battery and its terminals clean. Inspect every 100  
operating hours or monthly for best performance.  
Jump-Starting  
Gravely does not recommend jump-starting your unit.  
Jump-starting can damage engine and electrical system  
components. See your engine manual for more detailed  
information.  
LUBRICATE UNIT  
NOTE: Use Stens Mix Hi-Temp Grease or equivalent  
(part number 00036700).  
Apply oil at all pivot points and pin connections.  
1. Negative terminal  
2. Positive terminal  
3. Battery  
1
Figure 9  
OF1671  
1. Remove battery from unit. See Remove Battery on  
2. Clean terminals and battery cable ends with wire  
brush.  
OF1793  
3. Coat terminals with dielectric grease or petroleum jelly.  
REF LUBRICATION QTY  
LOCATION  
INTERVAL  
4. Replace battery. See Replace Battery on page 19.  
1
REPACK  
OIL  
2
CASTER PIVOT 400 Hrs  
Charging the Battery  
ALL PIVOT  
POINTS, PIN  
CONNECTIONS  
50 Hrs  
WARNING: FROZEN BATTERIES CAN  
EXPLODE and result in death or serious injury. DO  
NOT charge a frozen battery. Let battery thaw  
before charging.  
Figure 10  
Battery Electrolyte First Aid  
Follow First Aid directions for contact with battery fluid.  
• External Contact: Flush with water.  
• Eyes: Flush with water for at least 15 minutes and get  
medical attention immediately!  
• Internal Contact: Drink large quantities of water. Follow  
with Milk of Magnesia, beaten egg or vegetable oil. Get  
medical attention immediately!  
In case of internal contact, DO NOT induce vomiting!  
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Eliminating Excessive Creeping of the Unit  
STEERING CONTROL NEUTRAL  
ADJUSTMENT  
If the steering levers do not line up (match) or the unit has  
excessive creeping when the steering levers are in neutral,  
adjust as follows.  
WARNING: This adjustment requires operating the  
engine. Use extreme care to avoid contact with  
moving parts and hot surfaces. Be sure rear of unit  
is well-supported and secure before starting  
engine.  
Adjusting the Steering Levers to Line Up (Match)  
1. Shut OFF engine. Engage parking brake. Remove the  
ignition key.  
1. If hydraulic system is cold, run unit for a minimum of  
five minutes, then shut OFF engine.  
2. Place seat in the service position (See SERVICE  
2. With the unit up to and facing a wall, jack the unit up so  
that both drive wheels are off the ground.  
3. Loosen damper locknut on the same side as the  
steering lever to be adjusted.  
3. Start the engine and release the parking brake.  
4. Move the steering levers from Forward to Reverse  
several times to make sure controls are free. Then  
return steering levers to neutral position.  
4. Loosen brake interlock on the same side as steering  
lever to be adjusted.  
5. Loosen tie rod jam nut and turn tie rod until steering  
levers are aligned.  
5. Check wheel(s) for movement.  
6. Shut OFF engine.  
6. Tighten jam nut on tie rod, tighten brake interlock and  
tighten damper locknut.  
NOTE: The right and left steering levers are adjusted the  
same way. To access the tie-rod, place seat in service posi-  
7. Adjust tie-rod(s):  
If the wheel is moving in a forward direction:  
a. Loosen the jam nut on each end of the tie-rod.  
b. Turn tie-rod counterclockwise (lengthening the  
distance between the steering lever and hydrostatic  
transmission) several times.  
If the wheel is moving in a reverse direction:  
a. Loosen the jam nut on each end of the tie-rod.  
b. Turn tie-rod clockwise (decreasing the distance  
between the steering lever and hydrostatic  
transmission) several times.  
8. Return seat to operating position.  
9. Start engine.  
10. Move steering levers from Forward to Reverse several  
times. Then return steering levers to neutral position.  
11. Shut OFF engine.  
12. If wheel is not moving, tighten jam nuts on tie-rod. The  
adjustment is complete.  
13. If wheel is still moving, repeat steps 7 through 12.  
ADJUSTING THE UNIT TO TRACK STRAIGHT  
1. Damper Locknut  
2. Damper  
5. Steering Lever  
6. Brake Interlock  
WARNING: Prior to adjusting the tracking of the  
unit, shut off engine, engage parking brake, and  
remove the ignition key.  
3. Tie-Rod Jam Nut  
4. Tie-Rod  
7. Hydrostatic  
Transmission  
Figure 11  
OF3381  
Check and adjust tire pressure. Increase pressure on side  
unit tracks to. DO NOT exceed maximum recommended tire  
pressure (See SPECIFICATIONS on page 28).  
GB - 20  
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If tire pressure adjustment does not solve tracking problem,  
adjust the limiter bolts on the stop bracket (Figure 12). Front  
bolts adjust forward and rear bolts adjust reverse. Lengthen  
the limiter bolt (move closer to lever) on side which is too  
fast.  
2. Install the spacer, handle, and eccentric spacer in the  
appropriate height position. Do not tighten the nut  
holding the eccentric spacer.  
3. Turn the eccentric spacer until the right and left  
handles are the same height. Tighten nut.  
PARKING BRAKE ADJUSTMENT  
3
The parking brake might need adjustment over time and  
after new brake pads have been installed.  
NOTE: After installing new brake pads in the calipers, they  
must be burnished by driving for a short distance (about 100  
feet) with the brake on. To do this, bring the parking brake  
lever part-way up while driving in a straight line. This quickly  
breaks-in the pads for maximum effectiveness  
2
1
1/16 to 1/8 in. (1.59  
to 3.18 mm)  
1-1/2 in.  
(3.81 cm)  
1
4
OF3572  
2
1. Limiter Bolt  
2. Jam Nut  
3. Steering Lever  
4. Stop Bracket  
Figure 12  
ADJUSTING THE HEIGHT OF THE STEERING  
LEVER HANDLES  
The handles have three height positions (Figure 13).  
1. Parking Brake Lever  
2. Brake Rod  
3. Return Nuts  
4. Trunnion  
5. Spring  
6. Jam Nuts  
Figure 14  
OF3303  
Check Adjustment  
NOTE: Be sure to check the parking brake on both sides of  
the unit (Figure 14).  
With the parking brake engaged, the spring length should  
measure 1 1/2 in. (3.81 cm) between the jam nuts and the  
trunnion and the clearance between the return nuts and  
trunnion should measure 1/16 to 1/8 in. (1.59 to 3.18 mm). If  
either of these measurements is off, adjust the parking brake  
appropriately.  
2
Position # 1  
Position # 2  
1
Position # 3  
Adjust the Parking Brake  
1. Eccentric Spacer  
2. Handle  
3. Steering Lever  
3
1. Engage the parking brake.  
2. Turn the jam nuts clockwise to compress the spring or  
counterclockwise to extend the spring until there is  
1-1/2 in. (3.81 cm) clearance between the jam nuts  
and trunnion.  
Figure 13  
OF3570  
3. Tighten jam nuts together.  
1. Remove the spacer, handle, and eccentric spacer from  
the steering lever.  
NOTE: Position the right and left handles at the same height  
position.  
GB - 21  
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4. Turn the return nuts clockwise to decrease the  
distance or counterclockwise to increase the distance  
until there is 1/16 to 1/8 in. (1.59 to 3.18 mm) between  
the return nuts and trunnion.  
5. Arrange new mower belt(s) on deck (mower drive belt  
first). Retighten short mower belt idler pivot bolt. Install  
belts on sheaves. Put belts onto center sheave last.  
6. Replace belt covers and return foot board to closed  
position.  
5. Tighten return nuts together.  
BELTS  
WARNING: MOVING PARTS can cut or amputate  
body parts. ALWAYS wait for moving parts to stop  
before performing maintenance or service.  
CAUTION: DAMAGED OR WORN BELTS may  
result in injury and/or damage to unit. Check belts  
for excessive wear or cracks often.  
5
4
Belt Access  
1. Properly stop and park unit (See OPERATION on  
6
page 12).  
2. Lower the mower deck.  
1. PTO Mower Belt  
2. Mower Drive Belt  
3. Springs  
4. Mower Drive Belt Idler  
5. PTO Belt Idler  
3. Place seat in most rearward position.  
4. Remove belt covers.  
5. Place foot board in open position (Figure 15).  
6. Secure raised footboard with latch.  
6. PTO Clutch Sheave  
7. Center Sheave  
1
1. Footboard in  
open position  
2. Frame  
Figure 16  
2
3. Latch  
Replacing the Hydro Pump Belt  
3
1. Properly stop and park unit (See OPERATION on  
2. Remove the PTO mower belt from the PTO clutch  
CAUTION: Use care when releasing idler spring  
tension. Keep body parts well away from idlers  
when performing this operation.  
Figure 15  
OF3580  
3. Remove clutch anchor.  
Replacing Mower Belts  
NOTE: Long PTO mower belt must be removed from blade  
spindle pulleys prior to removing short mower drive belt.  
4. Slowly release the tension on the hydro pump belt idler  
until all the tension is removed from the springs.  
5. Remove old hydro pump belt from right hand hydrostat  
sheave first (Figure 17).  
CAUTION: Use care when releasing idler spring  
tension. Keep body parts well away from idlers  
when performing this operation.  
6. Install new hydro pump belt by positioning belt on  
sheaves. Put belt onto right hand hydrostat sheave  
last.  
1. Slowly release the tension on the PTO mower belt idler  
until all the tension is removed from the springs.  
7. Replace clutch anchor.  
8. Replace PTO mower belt on PTO clutch sheave. See  
2. Remove PTO mower belt from left blade spindle and  
remove from deck.  
3. Slowly release the tension on the mower drive belt  
idler until all the tension is removed from the springs.  
4. Remove mower drive belt from right blade spindle and  
from deck. Idler pivot bolt must be loosened slightly to  
gain clearance to remove belt from under idler pulley  
GB - 22  
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IMPORTANT: Adjust the mechanical lift spring on each side  
of the unit to the same length.  
• Adjust the eye-bolt to increase the length of the  
mechanical lift spring which will decrease the amount of  
force required to lift the mower deck.  
• Adjust the eye-bolt to decrease the length of the  
mechanical lift spring which will increase the amount of  
force required to lift the mower deck.  
Increased Spring Length = Decreased Force  
2
1. Hydro Belt  
2. Spring  
3. Idler  
5. Right Hand Hydrostat  
6. Left Hand Hydrostat  
7. Clutch  
1
4. Engine Sheave  
8. Clutch Anchor  
Decreased Spring Length = Increased Force  
Figure 17  
OF1631  
1. Eye-Bolt  
2. Mechanical Lift Spring  
MOWER DECKS  
Figure 19  
Removing the Mower Deck  
NOTE: Only remove PTO belt from electric clutch.  
OF4040  
Anti-scalp Roller Adjustment  
The anti-scalp rollers are set at the factory for typical  
mowing height, but can be adjusted for high or low cutting  
conditions (Figure 18).  
1. Remove PTO belt from electric clutch (see Replacing  
Anti-Scalp rollers are intended to prevent lawn scalping, not  
to control cutting height.  
NOTE: Perform steps 2 and 3 for mechanical lift mower  
decks only (992064, 083, 092, 093, 094, 095, 096, 097).  
For a very high cutting height, set the anti-scalp rollers in the  
lowest position on the bracket.  
CAUTION: Use care when releasing mechanical lift  
spring tension. Keep body parts well away from  
springs when performing this operation.  
For a very low cutting height, set the anti-scalp rollers in the  
highest position on the bracket.  
All anti-scalp rollers should be set at the same height.  
2. Raise mower deck to transport position (see Mower Lift  
Pedal (992064, 083, 092, 093, 094, 095, 096, 097) on  
page 13).  
Lowest  
Cutting  
Height  
3. Remove mechanical lift spring from each side of unit  
(Figure 20).  
Highest  
Cutting  
Height  
2
Figure 18  
OF3590  
1
1. Eye-Bolt  
MOWER LIFT PEDAL ADJUSTMENT  
The mower lift pedal can be adjusted to decrease or  
2. Mechanical Lift Spring  
Figure 20  
increase the amount of force required to lift the mower deck.  
OF4040  
NOTE: Decreasing the amount of force required to lift the  
mower deck will increase the mower deck’s bouncing.  
Increasing the amount of force required to lift the mower  
deck will decrease the mower deck’s bouncing.  
4. Lower mower deck all the way down.  
5. Remove link chains from mower lift arms. Note hole  
location on mower lift arms for replacement.  
6. Remove mower mounting arms from frame.  
7. Slide mower deck out from under unit.  
GB - 23  
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Leveling the Mower Deck  
These adjustments should be made on a level surface with  
the tires inflated to the correct air pressure.  
1
1
Level the mower with the slots where 4 chains fasten to the  
mower mounting brackets (Figure 22).  
1. Shut off engine. Engage parking brake. Remove the  
ignition key.  
2. Raise mower deck to its highest position and place  
4.75 in. (12.1 cm) tall blocks at each rear corner and  
4.625 in. (11.7 cm) tall blocks at each front corner.  
4
3. Lower deck onto the blocks.  
4. Loosen the locknuts on the side where the chains are  
slack and slide the bolt down the slot until the chains  
are tight.  
5. Tighten the locknuts.  
6. Lift mower and remove blocks.  
3
2
2
7. Measure height of deck at each side. Measurements  
must be within 3/16 in. (4.76 mm) of each other.  
1. Mower Lift Arm  
2. Link Chain  
3. Mower Mounting Arm  
4. PTO Mower Belt  
8. If measurements are out of range, fix by adjusting  
chains on low side of deck.  
Of0316  
Figure 21  
9. Once deck is level side to side, measure height of deck  
at middle of front and on both sides of rear. Front of  
deck should be 1/8 in. +/- 1/8 in. (3.18 mm +/-  
3.18 mm) lower than rear.  
Installing the Mower Deck (Figure 21)  
1. Slide mower deck under unit.  
2. Install mower mounting arms on frame.  
3. Install link chains on the mower lift arms in the same  
holes they were removed from.  
Right Side View  
2
1
NOTE: Perform steps 4 and 5 for mechanical lift mower  
1
decks only (992064, 083, 092, 093, 094, 095, 096, 097).  
4. Raise mower deck to transport position (see Mower Lift  
Pedal (992064, 083, 092, 093, 094, 095, 096, 097) on  
page 13).  
5. Install mechanical lift spring on each side of unit  
(Figure 21).  
6. Install PTO belt on electric clutch (see Replacing  
4
3
3
2
5
1. Chains  
2. Lock Nuts and Slots  
4. 4.675 in. (11.7 cm)  
Blocks  
5. 4.75 in. (12 cm) Blocks  
3. Mower Mounting  
Brackets  
OF4015  
Figure 22  
GB - 24  
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LONG TERM  
STORAGE  
Clean unit thoroughly with mild soap and low pressure water  
and lubricate (See LUBRICATE UNIT on page 19 in  
Maintenance). Touch up all scratched painted surfaces.  
WARNING: AVOID INJURY. Read and understand  
entire Safety section before proceeding.  
Remove weight from wheels by putting blocks under frame  
or axle.  
SHORT TERM  
When storing unit for extended periods of time, remove all  
fuel from tank and carburetor (run dry). Refer to Engine  
Manual.  
NEVER spray unit with high pressure water or store unit  
outdoors.  
Inspect unit for visible signs of wear, breakage or damage.  
Clean and charge the battery. Charge battery every three to  
four weeks when storing unit.  
Keep all nuts, bolts and screws properly tightened and know  
unit is in safe working condition.  
To Take the Unit Out of Storage  
Store unit in a cool, dry protected area.  
1. Refer to the engine service manual to prepare the  
engine for service.  
2. Put fresh, clean fuel in the fuel tank.  
3. Begin the maintenance schedule.  
4. Charge and install the battery.  
GB - 25  
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TROUBLESHOOTING  
PROBLEM  
PROBABLE CAUSE  
CORRECTION  
1. PTO engaged.  
1. Disengage PTO.  
Engine does not  
crank.  
2. Parking brake disengaged.  
3. Loose or corroded battery cables.  
2. Engage parking brake.  
3. Clean and tighten battery cables (see  
4. Discharged battery.  
4. Charge battery (see Charging the  
5. Faulty starter.  
5. See your Gravely Dealer.  
1. Fuel tank empty.  
1. Fill fuel tank (see FILLING FUEL TANK  
Engine cranks but  
does not start.  
2. Faulty spark plug.  
3. Air cleaner is plugged or dirty.  
4. Fuel filter is dirty.  
2. Replace spark plug. Refer to Engine  
Manual.  
3. Clean or replace air cleaner. Refer to  
Engine Manual.  
4. Clean or replace fuel filter. Refer to  
Engine Manual.  
5. Faulty engine.  
5. Refer to Engine Manual or see your  
Gravely Dealer.  
1. Discharged battery.  
1. Oil pressure is low.  
1. Charge battery (see Charging the  
Battery light does not  
light up when starting  
engine.  
1. Refer to Engine Manual.  
Oil pressure light is  
on.  
1. Ignition ground wire disconnected.  
2. Ignition switch failure.  
1. Connect ground wire to clean metal  
surface.  
Engine continues to  
run when ignition key  
is in the off position.  
2. Replace ignition switch (see your  
Gravely Dealer).  
1. Operator presence switch not  
depressed.  
1. Depress operator presence switch by  
sitting on seat.  
PTO or mower blades  
do not engage or shut  
off.  
2. Faulty PTO switch.  
2. Check the electrical system to the  
clutch for damage or wear. See your  
Gravely Dealer.  
1. Parking brake engaged.  
1. Disengage parking brake.  
Unit does not drive.  
2. Transmission bypass levers open.  
2. Close transmission bypass levers (see  
3. Hydraulic oil level low.  
3. Add hydraulic oil (see Check Hydraulic  
4. Faulty hydraulic drive system.  
4. See your Gravely dealer.  
GB - 26  
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ACCESSORIES  
Description  
SERVICE PARTS  
Qty Description  
Part No.  
Part No.  
78805300  
78803400  
78803500  
79200300  
78805400  
78803800  
78803900  
79201600  
79202800  
79200400  
79202600  
79200700  
78804100  
79202200  
44 in. Mulching Kit  
01554800  
21537000  
21536900  
21538200  
21538300  
21535800  
21397200  
09246900  
21536100  
21533600  
21525900  
21410800  
21538400  
21539500  
07241100  
07241000  
07239300  
07202900  
07222300  
07235000  
07218000  
04919100  
04920600  
04936000  
04916400  
04917900  
09246600  
08899100  
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Battery  
48 in. Mulching Kit  
Air Filter Outer Element  
Air Filter Inner Element  
Air Filter Paper Element (17 hp)  
Air Filter Foam Element (17 hp)  
Engine Oil Filter - Kawasaki  
Engine Oil Filter - Kohler  
Hydraulic Oil Filter  
52 in. Mulching Kit  
60 in. Mulching Kit  
44 in. Bahia/Tall Grass Baffle Kit  
48 in. Bahia/Tall Grass Baffle Kit  
52 in. Bahia/Tall Grass Baffle Kit  
60 in. Bahia/Tall Grass Baffle Kit  
44 in., 48 in., 52 in. Discharge Cover  
60 in. Discharge Cover  
Spark Plug - Kawasaki  
Spark Plug - Kawasaki (17 hp)  
Spark Plug - Kohler  
60 in. Striper Kit  
52 in., and 60 in. True Power Wheel / Tire Kit  
44 in. and 48 in. Double Blade Kit  
Fuel Filter - Kawasaki  
Fuel Filter - Kawasaki (17 hp)  
Fuel Filter - Kohler  
Liftmaster Kit (Not for 992064, 083, 092, 093, 094,  
095, 096, 097)  
PTO (Engine to Deck) Belt (52 in.)  
PTO (Engine to Deck) Belt (48 in.)  
PTO (Engine to Deck) Belt (60 in.)  
Mower Drive Belt (44 in. and 48 in.)  
Mower Drive Belt (52 in.)  
Mower Drive Belt (60 in.)  
Traction (Hydro Pump) Belt  
Blade (44 in. and 48 in.)  
Mulch Blade (44 in. and 48 in.)  
Blade (992310, 311)  
79202300  
79202700  
79202900  
79203100  
89201400  
89202200  
89202300  
78804300  
78804400  
79205500  
79204000  
Hitch Kit  
Headlight Kit  
Counterweight Kit  
44 in., 48 in., 52 in. Lawn Striper Kit  
Rollover Protection System  
60 in. Bagger  
44 in., 48 in., 52 in. Bagger  
Grass Catcher (48 in. and 52 in. Models)  
Leaf Collector (48 in. and 52 in. Models)  
Suspension Seat  
Blade (52 in.)  
Eye-Q™ Engine RPM Sensor Kit (992042, 043,  
044, 051, 064, 077, 078, 079, 080, 083, 092, 093,  
094, 095, 310, 311)  
Mulch Blade (52 in.)  
Blade (60 in.)  
Mulch Blade (60 in.)  
79204100  
79204200  
Eye-Q™ RF ID Kit  
Eye-Q™ GPS Kit — For 100 Series Gravely Units  
(42” Harness)  
79204300  
79204400  
79204600  
Eye-Q™ Accelerometer Kit  
Eye-Q™ Temperature Sensor Kit  
Eye-Q™ Scan-Mate™ and Job Efficiency Report-  
ing Software  
79204700  
79204800  
Eye-Q™ Accessory Wire Harness Kit — Required  
for any optional sensors, accelerometers, or GPS  
Eye-Q™ Retrofit Kit (992042, 043, 044, 051, 054,  
055 and 992310 and 311 with serial number range  
less than 2,499)  
79204900  
79205400  
Eye-Q™ Guard Kit  
Eye-Q™ Ready Kit (992042, 043, 044, 051, 054,  
055, 092, 093, 094, 095, 096, 097 and 992310 and  
311 with serial number range 2,500 and higher)  
GB - 27  
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SPECIFICATIONS  
Model Number  
Model  
992042  
992043  
992044  
992051  
PM160Z  
Optional  
992054  
992055  
992064  
992077  
PM144Z  
Standard  
PM144Z  
PM148Z  
PM152Z  
PM152Z  
PM160Z  
PM144Z  
Eye-Q  
Engine  
Engine  
Kawasaki  
Kohler  
CV730  
Kawasaki  
Engine Model Number  
FH601V  
19 (14.1)  
FH641V  
FH680V  
23 (17.1)  
FH500V  
FH601V  
Engine Power – hp (kW) at  
Maximum RPM  
21 (15.7)  
25 (18.7) 25 (18.7)  
17 (12.2)  
19 (14.1)  
Governed RPM (May be different  
from maximum RPM)  
3600 ± 100  
3550 ± 50 3600 ± 100 3550 ± 50  
Air Cooled  
3600 ± 100  
Cooling Capacity  
Speed  
Forward Maximum – mph (km/h)  
Reverse Maximum – mph (km/h)  
Turning Radius  
Brakes  
10 (16)  
4.5 (7.2)  
0
Hydro/Dynamic Drum – Parking  
Electrical  
Starter  
Electric  
Battery  
12-Volt Maintenance Free  
Electric PTO Clutch/Brake  
Power Take-Off  
Fuel  
Fuel Type  
Refer to Engine Manual  
10 (37.8)  
Fuel Tank Capacity – gal. (L)  
Transmission  
Type  
Hydrostatic Drive  
Transmission Oil  
Mobil 1 15W-50 Synthetic  
Hydraulic System Capacity – qt  
(L)  
4.8 (4.5)  
Yes  
Hydraulic Oil Filter  
Size and Weight  
73.5  
(186.7)  
Length – in. (cm)  
72.5 (184.2)  
61 (155)  
75 (190.5)  
73 (185)  
73 (185)  
72.5 (184.2)  
Width – in. (cm)  
57 (145)  
65 (165)  
65 (165)  
73 (185)  
57 (145)  
Height – in. (cm)  
42 (106)  
75 (190)  
1040  
(472.7)  
Height with ROPS – in. (cm)  
1040  
(472.7)  
Weight – lbs (kg)  
946 (430) 951 (432) 961 (437)  
961 (437)  
930 (422) 946 (430)  
Tires  
Front Tire Size – in. (cm)  
15 x 6 -6 (38 x 15 -15)  
23 x 9.5 -12  
(58.4 x  
24-30.5)  
23 x 9.5 -12 (58.4 x  
24-30.5)  
Rear Tire Size – in. (cm)  
23 x 10.5 - 12 (58.4 x 26.7-30.5)  
Front Tire Pressure – psi (kPa)  
Rear Tire Pressure – psi (kPa)  
Mower Deck  
20 -25 (138 - 172)  
12 -15 (83 -103)  
Mower Deck Lift  
Hydraulic  
Mechanical Hydraulic  
44 (112)  
Cutting Width – in. (cm)  
Cutting Height – in. (cm)  
44 (112)  
48 (122)  
52 (132)  
60 (152)  
52 (132)  
60 (152)  
1 - 5 (2.5 - 12.7)  
Cutting Height Increments – in.  
(cm)  
1 to 5 (2.5  
0.5 (1.25)  
1 to 5 (2.5 to 12.7)  
500 (227)  
50 (23)  
to 12.7)  
Maximum Towing Capacity – lbs  
(kg)  
Maximum Tongue Weight – lbs  
(kg)  
GB - 28  
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SPECIFICATIONS  
Model Number  
Model  
992078  
992079  
992080  
992081  
992082  
992083  
992092  
992093  
PM148Z  
PM152Z  
PM160Z  
PM152Z  
PM160Z  
PM144Z  
PM144Z  
PM148Z  
Eye-Q  
Standard  
Optional  
Engine  
Engine  
Kawasaki  
Kohler  
Kawasaki  
FH601V  
Engine Model Number  
FH641V  
21 (15.7)  
FH680V  
CV730  
FH500V  
17 (12.2)  
FH641V  
21 (15.7)  
Engine Power – hp (kW) at  
Maximum RPM  
23 (17.1)  
25 (18.7)  
19 (14.1)  
Governed RPM (May be different  
from maximum RPM)  
3600 ± 100 3550 ± 50 3600 ± 100 3550 ± 50  
Air Cooled  
3600 ± 100  
Cooling Capacity  
Speed  
Forward Maximum – mph (km/h)  
Reverse Maximum – mph (km/h)  
Turning Radius  
Brakes  
10 (16)  
4.5 (7.2)  
0
Hydro/Dynamic Drum – Parking  
Electrical  
Starter  
Electric  
Battery  
12-Volt Maintenance Free  
Electric PTO Clutch/Brake  
Power Take-Off  
Fuel  
Fuel Type  
Refer to Engine Manual  
10 (37.8)  
Fuel Tank Capacity – gal. (L)  
Transmission  
Type  
Hydrostatic Drive  
Transmission Oil  
Mobil 1 15W-50 Synthetic  
Hydraulic System Capacity – qt  
(L)  
4.8 (4.5)  
Yes  
Hydraulic Oil Filter  
Size and Weight  
72.5  
(184.2)  
72.5  
(184.2)  
72.5  
(184.2)  
72.5  
(184.2)  
72.5  
(184.2)  
72.5  
(184.2)  
Length – in. (cm)  
75 (190.5)  
73 (185)  
75 (190.5)  
73 (185)  
Width – in. (cm)  
Height – in. (cm)  
61 (155)  
65 (165)  
65 (165)  
57 (145)  
57 (145)  
61 (155)  
42 (106)  
Height with ROPS – in. (cm)  
Weight – lbs (kg)  
Tires  
75 (190)  
1050 (476)  
1125 (510)  
1050 (476)  
1125 (510)  
1050 (476)  
Front Tire Size – in. (cm)  
15 x 6 -6 (38 x 15 -15)  
23 x 10.5 -  
12 (58.4 x  
26.7-30.5)  
23 x 9.5 -12 (58.4 x  
24-30.5)  
Rear Tire Size – in. (cm)  
23 x 10.5 - 12 (58.4 x 26.7-30.5)  
Front Tire Pressure – psi (kPa)  
Rear Tire Pressure – psi (kPa)  
Mower Deck  
20 -25 (138 - 172)  
12 -15 (83 -103)  
Mower Deck Lift  
Hydraulic  
60 (152) 52 (132)  
1 - 5 (2.5 - 12.7)  
Mechanical  
44 (112) 48 (122)  
Cutting Width – in. (cm)  
Cutting Height – in. (cm)  
48 (122)  
52 (132)  
60 (152)  
44 (112)  
Cutting Height Increments – in.  
(cm)  
1 to 5 (2.5 to 12.7)  
500 (227)  
50 (23)  
0.5 (1.25)  
Maximum Towing Capacity – lbs  
(kg)  
Maximum Tongue Weight – lbs  
(kg)  
GB - 29  
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SPECIFICATIONS  
Model Number  
Model  
992094  
PM152Z  
992095  
992096  
PM152Z  
992097  
992310  
992311  
PM160Z  
PM160Z  
PM144Z  
PM148Z  
Eye-Q  
Optional  
Standard  
Engine  
Engine  
Kawasaki  
Kohler  
CV730  
Kawasaki  
Engine Model Number  
FH680V  
FH601V  
FH641V  
21 (15.7)  
Engine Power – hp (kW) at Maximum  
RPM  
23 (17.1)  
25 (18.7)  
3550 ± 50 3600 ± 100  
19 (14.1)  
Governed RPM (May be different from  
maximum RPM)  
3550 ± 50  
3600 ± 100  
2800 ± 50  
3300 ± 50  
Cooling Capacity  
Speed  
Air Cooled  
Forward Maximum – mph (km/h)  
Reverse Maximum – mph (km/h)  
Turning Radius  
Brakes  
10 (16)  
4.5 (7.2)  
0
Hydro/Dynamic Drum – Parking  
Electrical  
Starter  
Electric  
Battery  
12-Volt Maintenance Free  
Electric PTO Clutch/Brake  
Power Take-Off  
Fuel  
Fuel Type  
Refer to Engine Manual  
10 (37.8)  
Fuel Tank Capacity – gal. (L)  
Transmission  
Type  
Hydrostatic Drive  
Mobil 1 15W-50 Synthetic  
4.8 (4.5)  
Transmission Oil  
Hydraulic System Capacity – qt (L)  
Hydraulic Oil Filter  
Size and Weight  
Length – in. (cm)  
Width – in. (cm)  
Height – in. (cm)  
Height with ROPS – in. (cm)  
Weight – lbs (kg)  
Tires  
Yes  
72.5 (184.2)  
65 (165)  
75 (190.5)  
73 (185)  
73.5 (186.7)  
65 (165)  
75.4 (191.5)  
73 (185)  
73.5 (186.7)  
57 (145)  
61 (155)  
42 (106)  
75 (190)  
1050 (476)  
1125 (510)  
15 x 6 -6 (38 x 15 -15)  
23 x 10.5 - 12 (58.4 x 26.7-30.5)  
1050 (476)  
1125 (510)  
Front Tire Size – in. (cm)  
23 x 9.5 -12 23 x 10.5 - 12  
Rear Tire Size – in. (cm)  
(58.4 x  
(58.4 x  
24-30.5)  
26.7-30.5)  
Front Tire Pressure – psi (kPa)  
Rear Tire Pressure – psi (kPa)  
Mower Deck  
20 -25 (138 - 172)  
12 -15 (83 -103)  
Mower Deck Lift  
Mechanical  
60 (152) 52 (132)  
Hydraulic  
Cutting Width – in. (cm)  
52 (132)  
52 (132)  
44 (112)  
48 (122)  
Cutting Height – in. (cm)  
1 - 5 (2.5 - 12.7)  
Cutting Height Increments – in. (cm)  
Maximum Towing Capacity – lbs (kg)  
Maximum Tongue Weight – lbs (kg)  
0.5 (1.25)  
1 to 5 (2.5 to 12.7)  
500 (227)  
50 (23)  
GB - 30  
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GB - 31  
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GRAVELY  
A Division of Ariens Company  
655 West Ryan Street  
P.O. Box 157  
Brillion, WI 54110-0157  
920-756-2141  
Fax 920-756-2407  
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