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
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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
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
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 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,
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
GB - 10
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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)
GB - 11
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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
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.
Keep mower blades sharp.
3. Turn right and left bypass valve levers
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
Every 25
Hours
Lubricate Front Axle and Pivot Points
Clean Battery
Oil all pivot points, pin connections, and apply grease to front
Every 50
Hours
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
page 22 for belt location.
for belt location.
Grease Front Axle Castor Pivots
Change Hydraulic Oil and Filter
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.
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 (+)
3. Remove holddown and remove battery.
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
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
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. 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).
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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
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.
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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
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
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
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
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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).
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).
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
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.
5. Faulty starter.
5. See your Gravely Dealer.
1. Fuel tank empty.
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.
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.
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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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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