Gravely Ventilation Hood 250Z User Manual

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TABLE OF CONTENTS  
Section 1 - Introduction . . . . . . . . . . . . . . . . . . 1-3  
Section 5 - Engine. . . . . . . . . . . . . . . . . . . . . . 5-16  
5.1 Engine Troubleshooting . . . . . . . . . . . . . . 5-16  
5.2 Removing the Engine. . . . . . . . . . . . . . . . 5-17  
5.3 Installing The Engine . . . . . . . . . . . . . . . . 5-17  
5.4 Electric Clutch . . . . . . . . . . . . . . . . . . . . . 5-17  
1.1 The Manual . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
1.2 Service and Replacement Parts . . . . . . . . 1-3  
1.3 Product Registration . . . . . . . . . . . . . . . . . 1-3  
1.4 Unauthorized Replacement Parts . . . . . . . 1-3  
1.5 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
1.6 Technical Service Communications. . . . . . 1-3  
1.7 Preparation . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
Section 6 - Drive Train . . . . . . . . . . . . . . . . . . 6-18  
6.1 Checking The Hydraulic Fluid Level. . . . . 6-18  
6.2 Changing Hydraulic Fluid And Filter . . . . 6-18  
6.3 Hydraulic Drive Flow Test. . . . . . . . . . . . . 6-18  
6.4 Replacing The Hydraulic Pump . . . . . . . . 6-19  
6.5 Replace Wheel Motor . . . . . . . . . . . . . . . 6-20  
6.6 Hydraulic Deck Lift Pressure Test . . . . . . 6-21  
6.7 Replace Lift Valve . . . . . . . . . . . . . . . . . . 6-21  
6.8 Hydraulic Diagram . . . . . . . . . . . . . . . . . . 6-22  
Section 2 - Safety . . . . . . . . . . . . . . . . . . . . . . . 2-4  
2.1 Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . 2-4  
2.2 Signal Words . . . . . . . . . . . . . . . . . . . . . . . 2-4  
2.3 Notations . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
2.4 Practices and Laws . . . . . . . . . . . . . . . . . . 2-4  
2.5 Required Operator Training . . . . . . . . . . . . 2-4  
2.6 Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . 2-4  
Section 7 - Mower Deck . . . . . . . . . . . . . . . . . 7-23  
7.1 Mower Deck . . . . . . . . . . . . . . . . . . . . . . . 7-23  
7.2 Anti-Scalp Rollers . . . . . . . . . . . . . . . . . . 7-23  
Section 3 - Specifications . . . . . . . . . . . . . . . . 3-7  
Section 4 - General Maintenance  
& Adjustments . . . . . . . . . . . . . . . . . . . . . . . 4-8  
4.1 Controls and Features . . . . . . . . . . . . . . . . 4-8  
4.2 Service Position - 260Z . . . . . . . . . . . . . . . 4-9  
4.3 Service Position - 250Z . . . . . . . . . . . . . . . 4-9  
4.4 Moving the Unit-Engine Not Running. . . . . 4-9  
4.5 Cleaning and Storage . . . . . . . . . . . . . . . . 4-9  
4.6 Filling The Fuel Tank . . . . . . . . . . . . . . . . 4-10  
4.7 Fasteners. . . . . . . . . . . . . . . . . . . . . . . . . 4-10  
4.8 General Lubrication . . . . . . . . . . . . . . . . . 4-10  
4.9 Basic Engine Maintenance . . . . . . . . . . . 4-11  
4.10 Belts. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11  
4.11 Tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12  
4.12 Mower Blades . . . . . . . . . . . . . . . . . . . . 4-12  
4.13 Steering Control Neutral Adjustment . . . 4-13  
4.14 Adjusting Control Levers . . . . . . . . . . . . 4-13  
4.15 Adjusting The Parking Brake . . . . . . . . . 4-14  
4.16 Adjusting The Unit To Track Straight . . . 4-14  
4.17 Leveling The Mower Deck . . . . . . . . . . . 4-15  
Section 8 - Front Suspension . . . . . . . . . . . . 8-24  
Section 9 - Electrical. . . . . . . . . . . . . . . . . . . . 9-25  
9.1 Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25  
9.2 Electrical Measurements . . . . . . . . . . . . . 9-25  
9.3 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26  
9.4 Switches. . . . . . . . . . . . . . . . . . . . . . . . . . 9-28  
9.5 Solenoid and Relays . . . . . . . . . . . . . . . . 9-29  
9.6 Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-29  
9.7 Diodes and Rectifiers. . . . . . . . . . . . . . . . 9-30  
9.8 Wiring Diagrams . . . . . . . . . . . . . . . . . . . 9-31  
2
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SECTION 1 - INTRODUCTION  
1.1 THE MANUAL  
1.3 PRODUCT REGISTRATION  
The purpose of this manual is to provide complete  
instructions for service, maintenance, disassembly,  
repair, and installation of the mechanical components  
for the Promaster 260Z and 250Z.  
A warranty registration card must be filled out, signed,  
and returned at time of purchase. This card activates  
the warranty. Claims meeting requirements during  
limited warranty period will be honored.  
Dealer trained service personnel should use this  
manual as a supplement to and reminder of the training  
sessions conducted by the company.  
1.4 UNAUTHORIZED REPLACEMENT  
PARTS  
Use only Gravely replacement parts. The replacement  
of any part on this vehicle with anything other than a  
Gravely authorized replacement part may adversely  
affect the performance, durability, or safety of this unit  
and may void the warranty. Gravely disclaims liability  
for any claims or damages, whether warranty, property  
damage, personal injury, or death arising out of the use  
of unauthorized replacement parts.  
Read all information for servicing a part or system  
before repair work is started to avoid needless  
disassembly.  
Operation  
Before operation of the unit, carefully and completely  
read manuals supplied with the unit. The contents will  
provide you with an understanding of safety  
instructions and controls during normal operation and  
maintenance.  
1.5 DISCLAIMER  
Gravely reserves the right to discontinue, make  
changes to, and add improvements upon its products  
at any time without public notice or obligation. 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.  
Safety Messages  
For your safety and the safety of others always read,  
understand, and follow all DANGER, WARNING, and  
CAUTION messages found in manuals and on safety  
decals.  
Directional Reference  
All reference to left, right, front, or rear are given from  
the operator in the operator position and facing the  
direction of forward travel.  
1.6 TECHNICAL SERVICE  
COMMUNICATIONS  
Ariens Technical Service communicates information to  
the field using Service Letters, Service Bulletins,  
Product Notices, and Campaigns. Each communication  
signifies a type of information and priority. The dealer is  
responsible to carry out the directive provided in the  
communication. The types of communication are:  
1.2 SERVICE AND REPLACEMENT PARTS  
When ordering publications, replacement parts, or  
making service inquiries, know the Model and Serial  
numbers of your unit and engine.  
Numbers are located on the product registration form in  
the unit literature package. They are printed on a serial  
number label, located on the frame of your unit.  
Service Letter - General technical information for the  
dealer. Technical information on how to service the  
product and product improvements.  
Service Bulletin - Notification to update products to  
resolve certain issues or a notification of a policy  
change.  
Product Notices - Notification of limited product  
located in a certain region. This is a limited distribution  
to only those who received the product involved.  
Campaigns - Notification of a safety related issue. All  
products must be updated and are tracked by the  
factory until all units are corrected.  
1.7 PREPARATION  
Before starting any removal of parts, proper  
preparation is very important for efficient work. A clean  
work area at the start of each job will allow you to  
perform service repairs easily and quickly.  
Figure 1  
1 - 3  
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To reduce the incidence of misplaced tools or parts,  
place removed components with all attaching hardware  
in the disassembly order on a clean work surface.  
Organization is a key part of proper reassembly.  
Tools, instruments, and parts needed for the job should  
be gathered before work is started. Interrupting a job to  
locate tools or parts is a needless delay.  
SECTION 2 - SAFETY  
2.1 SAFETY ALERTS  
2.5 REQUIRED OPERATOR TRAINING  
Look for these symbols to point out  
important safety precautions. They  
mean:  
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 the Operator’s Manual  
and any needed safety training before operation.  
Attention!  
Personal Safety Is Involved!  
Become Alert!  
2.6 SAFETY RULES  
Walk Around Inspection  
Obey The Message!  
Complete a walk around inspection of unit and work  
area to understand:  
2.2 SIGNAL WORDS  
The safety alert symbol is used in decals on the unit  
and with proper operation procedures in this manual.  
They alert you to the existence and relative degree of  
hazards.  
• Work area.  
Your unit.  
• All safety decals.  
Understand the safety message. It contains important  
information about personal safety on or near the unit.  
Work Area  
ALWAYS check overhead and side clearances carefully  
before operation. ALWAYS be aware of traffic when  
operating along streets or curbs.  
DANGER: IMMINENTLY HAZARDOUS  
SITUATION! If not avoided, WILL RESULT in  
death or serious injury.  
ALWAYS keep hands and feet within the limits of the  
unit.  
Keep children, people, and animals away. Keep  
children out of work area and under watchful care of a  
responsible adult.  
WARNING: POTENTIALLY HAZARDOUS  
SITUATION! If not avoided, COULD RESULT  
in death or serious injury.  
Keep area of operation clear of all toys, pets, and  
debris. Objects can cause vehicle instability and injury.  
CAUTION: POTENTIALLY HAZARDOUS  
SITUATION! If not avoided, MAY RESULT in  
minor or moderate injury. It may also be used  
to alert against unsafe practices.  
Check for weak spots on dock, ramps or floors. Avoid  
uneven work areas and rough terrain. Stay alert for  
hidden hazards.  
DO NOT run engine in an enclosed area. Always  
provide good ventilation.  
2.3 NOTATIONS  
NOTE: General reference information for proper oper-  
ation and maintenance practices.  
Unit  
ALWAYS keep protective structures, guards, and  
panels in good condition, in place and securely  
fastened. NEVER modify or remove safety devices.  
IMPORTANT: Specific procedures or information  
required to prevent damage to unit or attachment.  
Check Safety Interlock System for proper operation  
daily (see Operation section). Do not operate unless  
system operates properly.  
2.4 PRACTICES AND LAWS  
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.  
2 - 4  
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• Only trained adults may operate unit.  
Training includes actual operation.  
• Clearly understand instructions.  
• Be alert! Conditions can change.  
Operation  
Understand:  
• How to operate all controls  
• The functions of all controls  
• How to STOP in an Emergency  
• Speed ranges  
NEVER operate unit after or during the use of  
medication, drugs or alcohol. Safe operation requires  
your complete and unimpaired attention at all times.  
Do not operate any of the control levers or power take-  
off unless both feet are resting on the platform.  
NEVER allow anyone to operate the unit when their  
alertness or coordination is impaired.  
DO NOT travel at too fast a rate. DO NOT change  
engine governor settings or over-speed engine.  
DO NOT operate unit without wearing adequate outer  
garments. Wear adequate safety gear and protective  
gloves. Wear proper footwear to improve footing on  
slippery surfaces.  
Always back up slowly. Always look down and behind  
before and while backing.  
Never leave a running unit unattended. ALWAYS shut  
off power take off, lower throttle setting, and stop  
engine before leaving unit. ALWAYS remove key to  
prevent unauthorized use.  
Protect eyes, face, and head from objects that may be  
thrown from unit. Wear appropriate hearing protection.  
Avoid Sharp Edges. Sharp edges can cut. Moving  
parts can cut or amputate fingers or a hand. Wear  
gloves to service unit when handling sharp edges.  
Never carry passengers on any part of unit.  
Avoid uneven and rough terrain. 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.  
ALWAYS keep hands away from any pinch points.  
ALWAYS keep hands and feet away from all moving  
parts during operation. Moving parts can cut off body  
parts.  
If tires lose traction, turn off power take off and proceed  
slowly straight down slope. Avoid wet surfaces.  
DO NOT touch unit parts which might be hot from  
operation. Allow parts to cool before attempting to  
maintain, adjust, or service.  
Avoid parking on a slope. If necessary, use wheel  
chocks.  
Controls  
DO NOT leave unit unattended on a slope. ALWAYS  
use wheel chocks when leaving unit.  
Come to a complete stop before reversing.  
ALWAYS operate unit in good visibility and light.  
Never jerk the control levers. Always use a steady even  
action to achieve smooth control.  
Fuel is highly flammable and its vapors can explode.  
Use ONLY approved fuel containers.  
NO Smoking!  
Always be aware of obstructions that may cause injury  
to operator or damage to the unit.  
NO Sparks!  
NO Flames!  
Maintenance  
ALWAYS maintain unit in safe operating condition.  
Damaged or worn out muffler can cause fire or  
explosion.  
Allow engine to cool before servicing.  
NEVER fill fuel tank when engine is running, hot, or  
unit is indoors.  
Check the conditions of the unit at the end of each day  
and repair any damage or defects.  
Abnormal Vibrations are a warning of trouble. Striking a  
foreign object can damage unit. Immediately stop unit  
and engine. Remove key and wait for all moving parts  
to stop. Remove wire from spark plug. Inspect unit and  
make any necessary repairs before restart.  
ALWAYS block wheels and know all jack stands are  
strong and secure and will hold weight of unit during  
maintenance.  
Keep nuts and bolts tight and keep equipment in safe  
operating conditions.  
Hazardous Slopes  
DO NOT operate on steep slopes. Avoid operating on  
slopes. When you must operate on a slope, travel up  
and down the slope. Never operate across a slope.  
Never operate on a slope greater than 10 degrees.  
Before maintenance, adjustments, or service (except  
where specifically recommended), shut off engine.  
Allow hot parts to cool.  
Keep unit free of dirt, stones, and other debris. Clean  
up oil or fuel spills.  
Child Safety  
NEVER allow children to operate or play on or near  
unit. Be alert and shut off unit if children enter area.  
Personal Safety  
Read and obey all warning, caution, and instructions  
on the unit and in provided manuals.  
2 - 5  
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Storage  
DO NOT store unit inside a building with fuel in the fuel  
tank where any ignition sources are present. Allow unit  
to cool completely.  
ALWAYS clean unit before extended storage. See  
Engine Manual for proper storage.  
Battery  
Avoid Electric Shock. DO NOT reverse battery  
connections.  
Explosive Gases! Poisonous battery fluid contains  
sulfuric acid and its contact with skin, eyes, or clothing  
can cause severe burns.  
No flames. No sparks. No smoking near battery.  
Always wear safety glasses and protective gear near  
battery.  
DO NOT TIP battery beyond a 45o angle in any  
direction.  
ALWAYS KEEP BATTERIES OUT OF REACH of  
children.  
Transport  
Use extra care when loading or unloading unit onto  
trailer or truck. Secure unit chassis to transport vehicle.  
NEVER secure from rods or linkages that could be  
damaged.  
DO NOT transport with attachment in raised position.  
Lower attachment when unit is parked or stored unless  
a positive mechanical lock is used.  
Attachments and Accessories  
Use only attachments or accessories designed for your  
unit.  
2 - 6  
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SECTION 3 - SPECIFICATIONS  
Model Number  
Model  
992020 and 022  
992018  
992021  
992023  
992024  
PM260Z 25 HP  
Kohler with  
60" deck  
PM260Z 25 HP  
Kohler with  
50" deck  
PM260Z 22 HP  
Robin with  
50" deck  
PM250Z 20HP  
Briggs &  
Stratton with  
50" deck  
PM260Z 22 HP  
Robin with  
60" deck  
Length - cm (in)  
229 (90)*  
221 (87)  
229 (90)*  
Height - cm (in)  
Width - cm (in)  
Weight Actual - kg (lbs)  
Battery  
127 (50)  
160 (63)  
500 (1103)  
12 volt  
185 (73)  
185 (73)  
510 (1125)  
499 (1100)  
490 (1080)  
511 (1128)  
Brakes  
Hydro/Dynamic Disk - Parking  
0
Turning Radius  
Tire Size Front  
Rear  
15 x 6 - 6  
15 x 6 - 6  
15 x 6 - 6  
23 x 10.5 - 12  
23 x 10.5 - 12  
23 x 8.5 - 12  
Engine - manufacturer  
Model Number  
Cycle  
Kohler  
Kohler  
Robin  
EH65V  
4
Briggs & Stratton  
35177  
Robin  
CV25S  
CV25S  
EH65V  
Engine Power -  
25 HP  
25 HP  
22 HP  
20 HP  
22 HP  
-1  
-1  
-1  
-1  
-1  
-1  
HP (KW/min  
)
(18.4 KW/min  
)
(18.4 KW/min  
)
(16.2 KW/min  
Electric  
)
(14.7 KW/min  
)
(16.2 KW/min  
)
Starting System  
Fuel Tank Capacity  
Fuel  
9 gals. US (34 liters)  
See Engine Manual  
1800  
Idle RPM  
Governed RPM  
Air Cleaner  
3600  
Large Capacity Dual Element  
Air Cooled  
Cooling Capacity  
Engine Oil Type  
Spark Plug Gap  
Transmission  
See Engine Manual  
See Engine Manual  
Hydrostatic Drive  
9 MPH  
Speed - Forward Max.  
Reverse Max.  
4.5 MPH  
Transmission Lube  
Drive Clutch  
Mobil 1 15W-50 Synthetic  
Hydrostatic  
Tire Pressure Front  
Rear  
20-25 psi  
12-15 psi  
Lift System  
Hydraulic  
Power Take Off  
Mower Deck  
Electric PTO Clutch/Brake  
High Performance  
127 (50)  
Cutting Width - cm (in)  
Cutting Height - cm (in)  
Cut Increments - cm (in)  
152 (60)  
152 (60)  
2.5 - 12.7 (1 - 5)  
Infinite between 2.5 - 12.7 (1 - 5)  
3 - 7  
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SECTION 4 - GENERAL MAINTENANCE & ADJUSTMENTS  
4.1 CONTROLS AND FEATURES  
18  
8
11  
12  
10  
9
13  
7
14  
19  
15  
16  
6
5
17  
4
3
2
20  
1
OF1722  
Figure 2  
1. Mower Deck with Chute Deflector  
2. Fuel Shut Off Valve  
3. Parking Brake  
11. Ignition Switch  
12. Power Take Off (PTO) Switch  
13. Steering Levers  
4. Battery  
14. Mower Lift Lever  
5. Hour Meter  
15. Seat Adjustment Lever  
6. Oil Pressure Indicator  
7. Engine Frame and Hood (260Z)  
8. Fuel Tanks and Caps  
9. Choke Control  
16. Seat Suspension Adjustment Knob (260Z)  
17. Height of Cut Indicator  
18. Hydraulic Oil Reservoir  
19. Engine Hood Latch (260Z)  
20. Foot Board Latch  
10. Throttle Control  
* Serial No. 010000 and up are 221 (87)  
4 - 8  
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Daily Service Position: Place engine hood prop rod  
into service slot. Assure rod is engaged in slot properly.  
4.2 SERVICE POSITION - 260Z  
WARNING: ALWAYS block wheels and know  
that jack stands or blocks used are stable,  
strong, or secure and will hold the weight of  
the unit during maintenance.  
Full Service Position: Slowly release frame after seat  
contacts foot board. Use care and be sure of your  
footing. Do not step on mower deck.  
5. When service is complete, lower hood and secure  
with latches.  
To ensure the unit is positioned in the proper service  
position:  
4.3 SERVICE POSITION - 250Z  
1. Place unit on a flat level surface. ALWAYS stop  
engine. Assure unit is secure and will not tip over.  
Strap and clamp onto lift if used.  
Firmly grasp seat frame handle and lift past vertical.  
Lay inverted seat on foot rest. When service is  
complete, return seat to upright position.  
2. Place steering levers in neutral position and set  
parking brake.  
4.4 MOVING THE UNIT-ENGINE NOT  
RUNNING  
3. Unhook hood latches.  
To move the unit without the engine running, rotate the  
bypass valve levers located on the pumps toward the  
center of the tractor approximately 1/2 turn using a  
wrench. Levers must be returned to their original  
position in order to operate the unit (Figure 4).  
4. Firmly grasp engine frame and cover. Lift to  
desired service position (Figure 3).  
7
8
2
1
4
5
1
2
9
3
10  
1. Left Bypass Valve Lever  
2. Right Bypass Valve Lever  
Figure 4  
OF1730  
11  
6
4.5 CLEANING AND STORAGE  
1. Steering Levers  
2. Parking Brake  
3. Footboard  
4. Engine Hood & Frame  
5. Engine Hood Prop Rod  
6. Service Slot  
7. Daily Service Position  
8. Full Service Position  
9. Engine  
10. No Step Decal  
11. Battery  
WARNING: AVOID SHARP EDGES which  
can cut. Movement of parts can cut off fingers  
or a hand. Wrap blades, wear gloves, and use  
extreme caution when servicing.  
IMPORTANT: Never spray unit with water or store unit  
outdoors to help prevent sealed bearing rust or  
corrosion. Water can seep into sealed bearings and  
reduce component life. Bearings are sealed against dirt  
and debris only.  
Figure 3  
OF1811  
CAUTION: WHEN OPENING ENGINE  
COVER, USE CARE TO PROPERLY  
ENGAGE PROP INTO SLOT. Be sure footing  
is secure to accommodate weight shift of  
hood when rotating to full service position.  
A unit that is excessively dirty should be cleaned before  
work starts. Cleaning will occasionally uncover trouble  
sources. Dirt and abrasive dust reduce the efficient  
work life of parts and can lead to costly replacement.  
4 - 9  
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When taking unit out of extended storage:  
4.7 FASTENERS  
1. Check for any damage or loose parts. Repair,  
replace, or tighten hardware before operation,  
especially blade attachment bolts.  
Each day before operating, check mower blade  
mounting hardware and all other fasteners. Replace  
fasteners that are missing or damaged. Tighten all nuts  
and bolts to their correct torque value.  
2. If a preservative fluid was used in fuel tank, drain  
and discard. Fill fuel tank with fresh new fuel.  
4.8 GENERAL LUBRICATION  
IMPORTANT: Wipe each fitting clean before and after  
4.6 FILLING THE FUEL TANK  
lubrication.  
EXPLOSIVE VAPORS and FLAMMABLE  
FUEL can result in serious injury or death.  
Handle fuel with care. ALWAYS use an  
approved fuel container.  
Lube fitting locations are:  
-each deck push arm (2)  
-Hydro Idler (1)  
No Smoking!  
-front axle pivot (1)  
No Lighted Materials!  
No Open Flame!  
Allow engine to cool.  
Apply Sten Mix Hi-Temp Grease or equivalent to the  
lube fittings. Order P/N: 00036700- ten pack of 14 oz.  
cartridges.  
When using Sten Mix Hi-Temp Grease for the first time,  
all components should be thoroughly cleaned prior to  
lubricating.  
Use caution with fuel. Fuel is very flammable.  
Keep fuel in a clean and tight container. Keep  
fuel away from fire or heat. Never put fuel in  
the fuel tank while the engine is running or  
hot. Clean up any spilled fuel before starting  
the engine.  
Apply oil at all pivot points and pin connections.  
4
1
Add fuel to the tank as needed. See your Engine  
Manual for correct type and grade of fuel.  
2
3
To add fuel to the fuel tank:  
1. Refuel the unit only in a well ventilated, open area.  
2. Stop the engine.  
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.  
4. Fill the fuel tank. Be careful not to spill the fuel. Do  
not overfill, allow for fuel expansion. Stop filling  
when fuel is about 1” below the bottom of the neck.  
2
3
REF  
LUBRICATION  
QTY  
DESCRIPTION-  
LOCATION  
REF  
5. Install the cap on the fuel tank and tighten.  
INTERVAL  
6. Clean up any spilled fuel before starting the  
engine.  
1
2
3
4
GREASE  
GREASE  
GREASE  
GREASE  
2
1
2
1
CASTER PIVOT  
AXLE PIVOT  
50 Hrs.  
400 Hrs  
50 Hrs  
50 Hrs  
1
2
3
4
PUSH ARM PIVOT  
PUSH ARM PIVOT  
WARNING: POTENTIAL HAZARDOUS! Fuel  
is extremely flammable and highly explosive.  
Personal injury and property damage may  
result if not handled properly.  
OIL  
ALL PIVOT POINTS,  
PIN CONNECTIONS  
50 Hrs  
Figure 5  
OF1791  
• Fill the fuel tank outdoors in an open area.  
Do not fill when the engine is hot. Wipe up  
any fuel spills.  
• Never fill the fuel tank completely full.  
Empty space in tank allows fuel to  
expand.  
Description  
Use  
Interval  
Grease fittings  
Sten Mix Hi-Temp  
grease or equivalent  
50 hrs. running  
time  
• Never smoke when handling fuel. Stay  
away from open flames. Fuel fumes can  
be ignited by sparks.  
Hydraulic  
system  
Mobil 15W50  
synthetic oil  
500 hrs running  
time  
4 - 10  
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Replacing Mower Belts  
4.9 BASIC ENGINE MAINTENANCE  
NOTE: Long belt must be removed to remove short  
belt.  
See your engine manual and Section 5 of this manual  
for detailed information on the operation and  
maintenance of your engine.  
1. Roll long belt off left blade spindle and remove from  
deck.  
1. Each day before operating, check the level of the  
oil in the engine. Never operate the engine when  
the oil level is below the add mark.  
2. Roll short belt off right blade spindle and remove  
from deck. Idler pivot bolt must be loosened slightly  
to gain clearance to remove belt from under idler  
pulley (Figure 7).  
2. Each day before operating, check the air cleaner  
element. Dirt can decrease the flow of air to the  
engine.  
CAUTION: Use care when releasing idler  
spring tension. Keep body parts well away  
from idlers when performing this operation.  
3. Each day before operating, check the air cooling  
system on the engine. Debris can decrease the  
flow of air cooling the engine.  
4. Follow the maintenance instructions in your engine  
manual concerning oil and filter changes.  
3. Arrange new mower belt(s) on deck (short belt  
first). Retighten short belt idler pivot bolt. Install  
belts on sheaves. Roll belts onto blade sheave last.  
4.10 BELTS  
4. Replace belt covers and return foot board to closed  
position.  
WARNING: MOVING PARTS can cut or  
amputate body parts. ALWAYS wait for  
moving parts to stop before performing  
maintenance or service.  
Replacing the Hydro Pump Belt  
1. Properly stop and park unit (refer to unit Owner’s  
Manual).  
2. Remove the mower belt from the mower clutch  
CAUTION: DAMAGED OR WORN BELTS  
may result in injury and/or damage to the unit.  
Check belts for excessive wear or cracks  
often.  
sheave. See Replacing Mower Belts.  
3. Remove old hydro pump belt by rolling belt off right  
hand hydrostat sheave first (Figure 8).  
4. Install new pump belt by positioning belt on  
sheaves. Roll belt onto right hand hydrostat sheave  
last.  
Belt Access  
1. Properly stop and park unit (refer to Owner’s  
Manual).  
5. Put the mower belt back on mower clutch sheave.  
See Replacing Mower Belts.  
2. Lower the mower.  
3. Place seat in most rearward position.  
4. Remove belt covers.  
5. Place foot board in open position (Figure 6).  
6. Secure raised footboard with latch.  
1
5
2
4
3
1. Footboard in open  
position  
3. Support Frame  
4. Pivot  
2. Footboard in closed  
position  
5. Latch  
Figure 6  
OF1802  
4 - 11  
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4.12 MOWER BLADES  
NOTE: If mower is used under sandy soil conditions,  
replace blades when air lifts become eroded through at  
ends (Figure 9).  
3
2
1
2
4
3
1
5
4
1. Cutting Blade  
2. Square Corner  
3. Air Lift Erosion  
4. Air Lift  
50" and 60" Belt Layout  
1. Long Mower Belt  
2. Short Mower Belt  
3. Springs  
Figure 9  
OT0791  
4. Idlers  
5. Mower Clutch Sheave  
Sharpen The Mower Blades  
OF1640  
Figure 7  
CAUTION: Use sturdy gloves or padding to  
protect hands when working with mower  
blades.  
6
5
1
1. Turn the engine off. Remove the ignition key.  
Remove the ignition wires from the spark plugs.  
2. Remove the bolts, lock washer, the flat washers,  
and the blades from the spindle shafts.  
2
3
3. Sharpen the beveled edges of the blades in a  
straight line at a 25 degree angle. Do not change  
the angle of the beveled edge. If more than 0.5  
inches (12.7mm) are removed from the width of a  
blade, discard the blade. Make sure the sharpened  
blades are balanced. Balance must be held within  
1.3 inch ounces.  
4
4. Put the blades, the flat washers, lock washers, and  
the bolts back on the spindle shafts.  
1. Hydro Belt  
2. Spring  
3. Idler  
5. Right Hand Hydrostat  
6. Left Hand Hydrostat  
5. Tighten the bolts to a torque of 70 ft. lbs.  
4. Engine Sheave  
6. Put the ignition wires back on the spark plugs.  
Figure 8  
OF1631  
4.11 TIRES  
Before each use, make a visual check of tires. The  
correct air pressure is 12-15 psi (83-103 kn/m2) for the  
rear tires, and 20-25 psi (138-172 kn/m2) for the front  
tires.  
4 - 12  
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on the pump. The screw may be turned in or out to  
bring the unit into neutral.  
4.13 STEERING CONTROL NEUTRAL  
ADJUSTMENT  
8. If major adjustment is needed, it is best to remove  
the front ball joint from the bottom of the control  
levers and turn the stop screw in or out until neutral  
is found.  
If the unit has excessive creep when the control levers  
are in neutral, adjust as follows: (Figure 10)  
9. Then, with the adjustable arms of the parking  
brake interlock positioned so the clamping bolt is in  
the middle of the slot, adjust the ball joint on or off  
the control link rod so that their mounting bolts fit  
into the slot at the end of the adjustable interlock.  
2
1
2
10.Reinstall the front ball joint(s).  
NOTE: When properly adjusted, the parking brake  
interlock will move upward when the parking brake is  
set and hold the steering control levers in neutral. The  
parking brake starting interlock switch will not be  
depressed unless the steering control levers are in  
neutral. The interlock holds the levers in neutral until  
the parking brake is released.  
4
3
11.Move the control levers, from forward to reverse  
several times to make sure it is adjusted to neutral.  
Readjust if necessary.  
5
4
6
3
12.Stop the engine.  
7
1. Stop Bolts  
5. Parking Brake Interlock  
Adjustable Arms  
6. Clamping Bolt and Slot  
7. Mounting Bolt  
4.14 ADJUSTING CONTROL LEVERS  
To be done after neutral has been set. (Figure 10).  
2. Pump Levers  
3. Front Ball Joints  
4. Control Levers  
1. If desired the steering control levers can be set to  
match (be in line) when in neutral.  
Figure 10  
OF1820  
2. Remove front ball joint from bottom of steering  
control lever on side which is going to be adjusted.  
Screw ball joint on or off link rod to hydrostat so  
that control levers align. Replace rod end on lower  
part of steering control lever.  
WARNING: This adjustment requires  
operation of the engine and opening of hood.  
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.  
3. If needed, adjust parking brake interlock so that  
interlock is able to move up when both steering  
control levers are in neutral. To do this, loosen the  
clamping bolt on the adjustable member of the  
interlock and slide it in either direction until the  
interlock moves up and latches the ball joint  
mounting bolts.  
1. If hydraulic system is cold, run unit for a minimum  
of five minutes, then shut off unit.  
2. Make sure both control levers are in neutral. Raise  
hood (260Z).  
3. With the unit up to and facing a wall, jack the unit  
up so that both drive wheels are off the ground.  
4. Have someone depress center of seat to activate  
seat switch.  
5. Start the engine and run at about half throttle or  
faster. Release parking brake.  
6. Move the control levers from Forward to Reverse  
several times to make sure controls are free and  
check Neutral adjustment. If binding is found,  
correct it.  
7. Minor adjustments may be made by simply  
adjusting the stop screw which contacts the lever  
4 - 13  
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4.15 ADJUSTING THE PARKING BRAKE  
4.16 ADJUSTING THE UNIT TO TRACK  
STRAIGHT  
Check and adjust tire pressure. Increase pressure on  
side unit tracks toward. DO NOT exceed maximum  
recommended tire pressure (refer to Specifications).  
1. The Parking Brake may be adjusted through the  
use of the jam nuts on the brake rod which push  
against the compression spring which pushes on  
the caliper arm. See Figure 11.  
2. Turn the nuts further on the rod (clockwise) to  
tighten the brake and further off the rod  
(counterclockwise) to loosen the brake.  
If tire pressure adjustment does not solve tracking  
problem, the limiter bolts at base of handles can be  
adjusted. See Figure 12. Front bolts are for forward and  
rear bolts are for reverse. Lengthen bolts (move closer  
to lever) on side which is too fast.  
3. Ensure when the brake is applied, the caliper arms  
do not contact the return nuts on the rods in front of  
the caliper arms. If they do, back them off slightly.  
4. When installing new pads in the calipers, they must  
be burnished by driving for a short distance (about  
200 feet) with the brake on. To do this, bring the  
parking brake lever part way up, while driving  
normally (in a straight line). This quickly breaks-in  
the pads for maximum effectiveness.  
2
1
1
Front  
1. Limiter Bolt  
2. Lever  
1
2
1
Figure 12  
1. Jam Nuts  
2. Compression Spring  
OF1732  
Figure 11  
4 - 14  
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4.17 LEVELING THE MOWER DECK  
These adjustments should be made on a level surface  
with the tires inflated to the correct air pressure.  
Right Side View  
1
2
The mower is leveled from side to side with the slots  
where 4 chains fasten to the mower mounting brackets.  
The mower is leveled from front to rear by adjusting the  
rod running down each side of the frame (Figure 13).  
9
3
7
8
1. Raise mower deck and insert 3” (7.6 cm) tall blocks  
to support deck.  
2. Lower deck onto blocks so chains are slack.  
3. Measure from bottom of mower blade end to  
ground.  
5
5
4
4
6
6
4. Set hydraulic lift cylinder so cut of height reads the  
same as blade height measurement.  
5. Loosen the locknuts on the side where the chains  
are slack and slide the bolt down the slot until the  
chain is tight.  
6. Tighten bolt and nuts in mower mounting brackets.  
7. Lift mower and remove blocks.  
Front of Unit  
1. Rod  
6. Mower Mounting  
Brackets  
2. Rear Hex Nut  
3. Front Hex Nut  
4. Chains  
8. Measure height of deck at each side.  
Measurements must be within 1/16” (1.5mm) of  
each other.  
7. Front Mower Lift Pivot  
8. Rear Mower Lift Pivot  
9. Hydraulic Cylinder  
5. Lock Nuts and Slots  
9. If measurements are out of range, fix by adjusting  
chains on low side of deck.  
Figure 13  
10.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” (3mm) lower than rear.  
OF1920  
11.To adjust, loosen rear hex nut of the front mower lift  
pivot on each rod.  
12.Turn the front hex nut on each rod until mower is  
1/8” (3mm) lower in front.  
NOTE: If mower cannot be leveled, it may be neces-  
sary to loosen the rear nut of the rear mower lift pivot to  
get more threads at the front of rod for adjustment.  
After loosening rear nut and adjusting level, tighten  
front nut on rear mower lift pivot.  
13.Tighten rear hex nut on each rod that was  
loosened in step 11.  
4 - 15  
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SECTION 5 - ENGINE  
5.1 ENGINE TROUBLESHOOTING  
The following troubleshooting chart is to be used to  
isolate engine problems and give possible causes and  
corrective action responses.  
The troubleshooting key is generic and can be used for  
several types of engines. Use only those possible  
causes and corrective actions that apply to the  
unit.  
TROUBLE  
Black Exhaust  
POSSIBLE CAUSES  
(Refer to Key Below)  
CORRECTIVE ACTION  
1, 20, 22, 25, 29, 31, 32, 33  
4, 20, 25, 31, 33, 34  
repair or replace  
Blue/White Exhaust  
Difficult Starting  
Erratic Running  
repair or replace  
1, 5, 7, 8, 9, 10, 20, 21, 22, 29, 31, 32, 33  
1, 7, 8, 9, 10, 20, 21, 23, 26, 29, 33, 59, 62  
1, 20, 22, 23, 25, 39, 31, 32, 33  
4, 41  
repair or replace  
repair or replace  
Excessive Fuel Consumption  
High Oil Pressure  
Knocking  
repair or replace  
repair or replace  
22, 26, 29, 31, 33, 36, 46, 59  
1, 8, 10, 20, 21, 22, 23, 25, 26, 31, 32, 33  
2, 3, 4, 11  
repair or replace  
Loss of Power or System  
Low Cranking Power  
Low Oil Pressure  
Misfiring  
repair or replace  
repair or replace  
4, 36, 37, 39  
repair or replace  
10, 20, 25, 26, 28, 29, 32  
1, 19, 25,  
repair or replace  
Overheating  
repair or replace  
Poor Compression  
Starts and Stops  
25, 28, 29, 31, 32, 33, 34,59,  
1, 6, 10, 62  
repair or replace  
repair or replace  
see electrical systems  
see engine service manual  
repair or replace  
Vibration  
20, 23, 25, 26, 29, 33, 45, 49  
2, 11, 45  
Will Not Crank  
Will Not Start  
charge battery or replace  
repair or replace  
1, 10, 62  
see electrical systems  
see engine service manual  
TROUBLESHOOTING KEY  
1
Restriction in air cleaner  
Bad electrical connection  
Faulty starter motor  
Incorrect grade of lubricating oil 25  
Low cranking speed  
Fuel tank empty  
22  
23  
24  
Incorrect grade of fuel  
Sticking throttle/restricted movement 44  
Exhaust pipe restriction  
Leaking cylinder head gasket  
Overheating  
43  
Faulty suction pipe  
Choked oil filter  
2
3
4
5
6
7
45  
46  
47  
48  
49  
Bad solenoid switch  
Incorrect piston height  
Damaged fan  
Faulty engine mounting  
Incorrectly aligned flywheel and/or  
flywheel housing  
26  
27  
28  
Cold running  
Incorrect tappet adjustment  
Controls not in correct  
operation position  
8
9
Blocked fuel feed line  
Faulty fuel lift pump  
Choked fuel filter  
Battery capacity low  
Air in fuel system  
Faulty fuel injection pump  
Faulty fuel injectors or incorrect 35  
type  
29  
30  
31  
32  
33  
34  
Sticking valves  
50  
51  
52  
53  
Faulty thermostat  
Restriction in water jacket  
Loose fan belt  
Incorrect high pressure pipes  
Worn cylinder bores  
Pitted valves and seats  
Broken, worn or sticking piston ring(s) 54  
Worn valve stems and guides  
Restriction in air cleaner  
10  
11  
12  
13  
14  
Choked radiator  
Faulty water pump  
Choked breather pipe  
Damaged valve stem oil deflector (if  
fitted)  
55  
56  
15  
Incorrect use of cold start  
equipment  
Faulty cold start equipment  
Broken fuel injection pump  
drive  
36  
Worn or damaged bearings  
Insufficient oil in sump  
57  
58  
Coolant level too low  
16  
17  
37  
38  
Blocked sump strainer  
Broken valve spring  
Bad/defective oil temperature switch 59  
18  
19  
Incorrect fuel pump timing  
Incorrect valve timing  
39  
40  
Oil pump worn  
Pressure relief valve sticking open  
60  
61  
Exhaust or vacuum pipe leak  
Bad or defective water temperature  
switch  
20  
21  
Poor compression  
Blocked fuel tank vent  
41  
42  
Pressure relief valve sticking closed 62  
Broken relief valve spring  
Bad spark plug(s)  
5 - 16  
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5.2 REMOVING THE ENGINE  
1. Place the mower in the full service position.  
2. Disconnect the battery cables, negative first.  
3. Disconnect ignition wires using the connectors.  
4. Remove the belts from the pulley and clutch.  
3
5. Unscrew the bolt from the center of the output shaft  
and remove clutch. Refer to "Replacing the  
Clutch".  
1
6. Remove the square key and the pulley.  
7. Unclamp and remove the fuel line. Plug the fuel  
line and wipe up any spills.  
8. Remove the engine mounting bolts and lift engine  
out the top.  
2
5.3 INSTALLING THE ENGINE  
1. Position the new engine in the chassis, insert  
mounting bolts and tighten.  
1. Electric Clutch  
2. Pulley  
3. Anchor Bracket  
2. Install pulley and then the clutch on the output  
shaft.  
NOTE: Check condition of square key and replace if  
Figure 14  
needed.  
3. Place belts on pulley and clutch. Check for proper  
routing of belts.  
To Replace the Clutch  
1. Remove the belt by relaxing the idler pulley.  
4. Connect fuel line and ignition wires.  
5. Connect battery, positive first.  
2. Remove the center bolt.  
6. Check oil level and add as needed.  
CAUTION: DO NOT ALLOW the engine  
crankshaft to rotate. Damage to the engine  
may occur.  
5.4 ELECTRIC CLUTCH  
The motor output shaft has two pulley mechanisms.  
The top pulley is direct drive and powers the hydraulic  
system. The lower pulley is engaged by an electric  
clutch and supplies power to the mower blades. See  
Figure 14.  
3. Disconnect electrical wires.  
4. Remove nut from the anchor bracket.  
5. Pull clutch from shaft.  
6. Position new clutch on the shaft by aligning the  
square key on the shaft with the keyway of the  
clutch.  
The clutch has no repairable parts.  
If clutch does not operate, before replacing clutch:  
1. Check the deck for debris that may be blocking  
blades.  
7. Clutch should be rotated to position the anchor  
bracket with the slot in the stationary shell. Replace  
nut and tighten.  
2. Check PTO switch and wire harness for proper  
operation.  
8. Replace bolt and washers. Torque to  
55 foot pounds.  
5 - 17  
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SECTION 6 - DRIVE TRAIN  
15W50 synthetic oil. Start the engine and run for  
1 - 2 minutes.  
WARNING: Hydraulic Fluid can result in  
severe burns. Fluid in hydraulic system can  
penetrate skin and result in serious injury or  
death.  
6. After shutting off the engine, check the fluid level.  
The dipstick should read the fluid level between the  
high and low markings.  
7. Properly dispose of waste oil.  
Be sure to stop the engine before doing any  
work on hydraulic parts.  
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.  
Insure all hydraulic fluid connections are tight  
and all hydraulic hoses and lines are in good  
condition before applying pressure to system.  
6.3 HYDRAULIC DRIVE FLOW TEST  
Use this procedure for trouble shooting the drive  
system if the unit becomes sluggish or loss of drive  
becomes apparent. This test is to be performed one  
side at a time.  
1. Block and jack the unit up so that both drive wheels  
are off the ground.  
2. Place hood into the full service position.  
3. Verify that the by-pass valves are closed and there  
is no binding in the steering control linkage. If  
binding occurs, you will need to correct the  
problem before proceeding to the next steps.  
WARNING: 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.  
4. Make sure hydraulic fluid level is correct.  
5. Clean hydraulic hoses at the wheel motor.  
6.1 CHECKING THE HYDRAULIC FLUID  
LEVEL  
A check of the hydraulic fluid level should be made  
daily.  
6. Disconnect the hydraulic hoses at the wheel motor,  
note the proper orientation of hoses.  
7. Install a bi-directional flow gauge.  
8. Have someone depress center of seat to activate  
seat switch.  
NOTE: The oil level should be centered between the  
two marks on the dipstick.  
9. Start the engine and run at about 3/4 throttle or  
faster. Release parking brake.  
To Check: First, remove any dirt that may be around  
the cap on the tank. Remove the dipstick and check the  
oil level. If required, add Mobil 15W50 synthetic oil  
through the dipstick tube. Do not overfill.  
10.Stroke the appropriate control lever full stroke  
forward and hold.  
11.Set the hydraulic system pressure to 200-400 PSI  
by using the restriction valve. Note the GPM (gallon  
per minute) flow on the meter. While keeping the  
pump in full stroke, increase the hydraulic system  
pressure to 1000-1200 PSI by using the restriction  
valve. Note the GPM flow on the meter. Do not  
keep hydraulic system under pressure for an  
extended period of time to prevent damaging the  
hydraulic system by inducing too much heat to the  
system.  
6.2 CHANGING HYDRAULIC FLUID AND  
FILTER  
The hydraulic fluid and filter should be changed every  
500 hours of operation. To drain the hydraulic oil  
reservoir, remove the filter and catch the hydraulic oil in  
a pan.  
The filter for the hydraulic system is located under the  
chassis behind the left rear wheel. It is accessed from  
the rear of the unit.  
12.Open the restriction valve and move the control  
lever back to neutral. Idle unit down for a few  
seconds and shut off engine.  
To Replace the Filter  
1. Unscrew the filter and dispose of properly. Allow  
tank to drain into container.  
13.The acceptable flow drop would be less than 1  
GPM difference between the low and high pressure  
settings. If flow drop is greater than 1 GPM, the  
hydro-pump will need to be repaired or replaced. If  
the flow drop is less than 1 GPM you will need to  
replace the wheel motor.  
2. Place a film of oil on the new filter’s gasket.  
3. Screw the filter on until it makes contact with the  
sealing surface of the filter head.  
4. Turn the filter by hand, an additional 1/2 to 3/4 turn.  
5. Fill the hydraulic oil reservoir to the top mark on the  
dipstick. It will take about 5 quarts. Use Mobil  
6 - 18  
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To Replace a Hydraulic Pump  
1. Lift cover to full service position.  
2. Remove the cross channel.  
6.4 REPLACING THE HYDRAULIC PUMP  
The two hydraulic pumps are located inside the chassis  
in front of the engine. The pumps are maintenance free  
and should be replaced in the event of a failure. See  
Figure 15.  
3. Clean hoses and fittings and mark for location.  
4. Disconnect hoses from pump.  
CAUTION: Some fluid will leak out. Clean up  
any spills.  
1
5. Loosen belt from pulley.  
6. Remove bolt and washers from end of shaft.  
2
7. Loosen pulley lock bolt and slide pulley from shaft.  
Remove and inspect square key. Replace key if  
damaged.  
8. Remove back bolt on pump and loosen front bolt.  
9. Remove pump.  
10.Insert the new pump into position with the front bolt  
in the mounting flange slot.  
11.Insert rear bolt and tighten both bolts.  
12.Attach hydraulic hoses to correct ports and tighten.  
13.Position square key in shaft keyway and slide  
pulley into position.  
14.Screw the bolt, washer and lock washer into the  
end of the shaft. Tighten securely.  
15.Tighten pulley lock bolt.  
16.Place belt on pulley.  
1. Hydrostat BDP Pump  
2. Variable-Displace Pump  
17.Replace cross channel.  
18.Lower the cover and start the engine. Run the  
engine for 1 - 2 minutes. After shutting off the  
engine, check the hydraulic fluid level. The dipstick  
should read between the high and low markings.  
Figure 15  
6 - 19  
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6.5 REPLACE WHEEL MOTOR  
Each drive wheel is mounted to a hydraulic drive motor.  
The drive motors are maintenance free. In the event of  
a failure, the drive motors should be replaced.  
1
2
2
1
1. Hub  
2. Hydraulic motor  
Figure 16  
15.Tight lug nuts using the pattern shown in  
Figure 17.  
To Replace a Drive Motor  
1. Loosen the wheel lugs 1/4 turn.  
16.Lower the unit to the ground and start the engine.  
Drive forward twenty feet and stop the engine.  
Check the hydraulic fluid level. The dipstick should  
read between the high and low markings.  
2. Jack the drive wheels off the ground and securely  
support the unit.  
3. Remove the wheel.  
4. Remove the brake caliper assembly by removing  
the two bolts.  
1
5. Unscrew the axle bolt at the center of the hub and  
remove the hub. The hub is a taper fit on the axle.  
Use a wheel puller to assist in removal.  
4
3
6. Mark the hydraulic lines and remove.  
CAUTION: Some fluid will leak out. Clean up  
any spills.  
2
5
7. Unscrew the two bottom bolts and pull the  
hydraulic motor out.  
Figure 17  
OK0630  
8. Remove the four bolt sleeves.  
9. Insert the sleeves into the four bolt holes in the new  
hydraulic motor.  
10.Slide the motor into place and secure with two  
bottom bolts. Apply Loctite to bolts.  
11.Reattach hydraulic lines to proper ports and  
tighten.  
12.Clean the axle and the inside of the hub. Place hub  
over axle and lightly tap into position. Screw the  
axle nut onto the axle and tighten to 300-400 ft. lbs.  
13.Place the brake caliper into position and insert  
bolts from the inside of the frame outward. Use lock  
washer and nut and tighten.  
14.Position wheel on hub and insert lug nuts finger  
tight.  
6 - 20  
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6.8 HYDRAULIC DIAGRAM  
Lift  
Cylinder  
Lift  
Valve  
Deck Lower  
Deck Lift  
B
Return  
A
Left Pump  
A
B
Forward  
High  
Pressure  
Inlet  
A
Right Pump  
B
Right  
Wheel  
Motor  
Left  
Wheel  
Motor  
Forward  
High  
Pressure  
Upper  
Upper  
Reverse  
B
A
High  
Pressure  
Reverse  
High Pressure  
B
A
Lower  
Lower  
Oil  
Filter  
PRESSURE  
RETURN  
SUCTION  
Oil  
Tank  
6 - 22  
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SECTION 7 - MOWER DECK  
7.1 MOWER DECK  
Mower Spindles  
This unit utilizes a maintenance free extended life  
spindle. No routine maintenance is required. In the  
event of bearing failure or a bent shaft the spindle  
should be replaced.  
To Remove the Spindle  
1. Place the unit in service position. Turn key off and  
remove the spark plug wire from contact with the  
spark plug.  
2. Remove cutting blade by unscrewing bolt.  
CAUTION: Use sturdy gloves or padding to  
protect hands when working with mower  
blades.  
3. Remove belt from pulley (see Replacing Mover  
Belts).  
4. Remove pulley by unscrewing bolt. Lift pulley off  
the shaft and check placement and condition of  
key.  
5. Unbolt spindle from deck.  
To Install Spindle  
6. Bolt new spindle to mower deck.  
7. Place square key in position and slide pulley down  
the shaft. Tighten bolt and washer.  
8. Replace belts.  
9. Install blade using flat washer, lock washer and  
bolt. Torque to 70 ft. lbs.  
7.2 ANTI-SCALP ROLLERS  
All of the anti-scalp rollers are maintenance free. If any  
roller, shaft, or weldment shows excessive wear it  
should be replaced.  
The caster-type rollers are replaced by removing the  
top pin and dropping the weldment with roller out the  
bottom. Note the position of spacers and bushings for  
installation.  
The rollers are replaced by removing the shaft. Note  
the position of spacers for installation.  
7 - 23  
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SECTION 9 - ELECTRICAL  
9.1 TOOLS  
9.2 ELECTRICAL MEASUREMENTS  
There are some specialized tools and test equipment  
that are needed for electrical repair work. A brief  
description of these follows.  
Long or needle nose pliers - used to connect or bend  
wires and connectors in close quarters.  
Diagonal cutters - used to cut wires or trim connec-  
tions.  
Wire stripper/crimping tool - available separately or  
as a combination tool. Used to strip insulation from  
wires of various sizes, crimp terminals and connector  
or wires.  
Soldering gun or soldering iron - used to solder all  
splices and connections to terminals, connector, etc. A  
soldering gun is faster and more convenient that wait-  
ing for a soldering iron to heat.  
Multimeter - analog or digital, to measure voltage,  
amperage and ohms.  
Tachometer - used to measure engine speed.  
Required to properly test alternator and charging cir-  
cuits where output is dependent upon engine speed.  
Heat gun - used to shrink insulated tubing in place.  
Used to replace electrical tape or insulated sleeving. To  
use, place a piece of shrink tubing over a wire joint,  
heat with the heat gun, until it shrinks slightly around  
the joint.  
Supplies - electrical tape, rosin core solder (never use  
acid or acid core solder on electrical joints), an assort-  
ment of various size terminals, connectors, insulated or  
heat shrink tubing (for use on joints and connections),  
and an assortment of automotive type wire (in several  
colors).  
Ariens Company recommends that all work be done in  
a professional manner. The use of the tubing to cover  
joints and the soldering of connections contribute to a  
professional looking job. In addition to a pleasing  
appearance, repairs made in this manner are more  
likely to withstand vibration. (The weakest points in an  
electrical system are the joints where wires are  
attached.)  
Replace all defective components with Ariens replace-  
ment parts only. Engine parts, such as rectifiers or  
alternator components should be secured through the  
nearest engine service center.  
Ariens Company does not recommend attempting to  
repair electrical components. Most do not lend them-  
selves to repair and you would have more money  
invested in "time of repair" than the part would cost and  
the results may not be as good.  
In many electrical circuits, there is some visible effect  
which indicates that the circuit is functioning properly. A  
switch is turned "ON" and a lamp lights. A key is  
turned, a starter motor runs and cranks the engine.  
If the lamp does not light, or the starter motor does not  
run, some means of measuring voltage, current flow,  
resistance and continuity is needed, (continuity means  
there is a complete electrical path through the circuit or  
component.)  
To know exactly what conditions exist in an electrical  
circuit requires AC and DC Voltmeter, AC and DC  
Ammeter, and an Ohmmeter.  
Multimeter  
A single combination meter that does all of these things  
is available. Such a meter is called a Multimeter or Volt-  
Ohm-multitester (VOM). Meters of this kind are avail-  
able in many forms and all change functions and  
ranges with switches, or by plugging test leads into dif-  
ferent jacks. Multimeters are available in two basic  
types, Analog and Digital.  
Analog Meters  
Analog Meters have a needle that moves across a  
scale to give a reading. The longer the scale, the easier  
it is to read and more accurate the reading will be. A  
jeweled movement is used in this type of meter is more  
likely to be damaged through rough handling (except  
for overloaded Protected Meters) or by measuring high  
values that exceed the range set on the meter than a  
digital meter. They provide excellent service for the  
money as long as they are used with care.  
Digital Meters  
Digital Meters do not have a movement and are there-  
fore more rugged. The reading shows up directly on a  
display window of some type. Since they read direct, no  
skill in reading the scale is required, nor is it necessary  
to set the range. The meter switches the ranges auto-  
matically. One has only to select the function DC Volts,  
AC Ampere, Ohms, etc.,) connect the test leads, and  
the reading is shown on the display. Because of the  
internal circuitry and the lack of a movement, these  
meters are not likely to be damaged by overloads.  
In the discussions that follow, either type of meter may  
be used. Test procedures are the same. It is best to  
learn proper procedures, even though some meters  
may be more forgiving of mistakes. Where differences  
in use may occur, they will be covered in the discus-  
sion.  
9 - 25  
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Voltage Measurement  
WARNING: EXPLOSIVE GASES can result  
in serious injury or death. ALWAYS keep open  
flames, sparks, or smoking materials away  
from battery.  
There are two basic rules to be remembered when  
using a voltmeter. A voltmeter measures the voltage  
difference between the test leads and the voltmeter is  
always connected across the circuit under test.  
POISONOUS BATTERY FLUID contains sul-  
furic acid and its contact with skin, eyes or  
clothing can cause severe chemical burns.  
ALWAYS wear safety glasses and protective  
gear near battery.  
DO NOT TIP any battery beyond 45 degree  
angle in any direction.  
ALWAYS KEEP BATTERIES OUT OF REACH  
of children.  
Current Measurement  
The two rules to remember when measuring current  
with an ammeter are; an ammeter measures the cur-  
rent that flows through the meter, and to measure cur-  
rent an ammeter must be connected into the circuit.  
The latter rule means that the circuit must be opened,  
and the ammeter wired into it. Because this procedure  
is usually difficult, an ammeter is seldom used for trou-  
bleshooting.  
WARNING: REVERSE CONNECTIONS may  
result in sparks which may result in injury.  
ALWAYS connect/disconnect cables in proper  
order.  
Resistance Measurement  
An Ohmmeter is used to make resistance measure-  
ments and to check continuity through wires and elec-  
trical components.  
There is one rule to keep in mind when using an ohm-  
meter. The ohmmeter has a self contained battery and  
requires no electrical power. Using the ohmmeter on a  
circuit that has power applied may result in damage to  
the meter.  
Battery Electrolyte First Aid  
-External contact: Flush with water.  
-Eyes: Flush with water for at least 15 minutes and get  
medical attention immediately!  
IMPORTANT: Disconnect the equipment battery when  
making Ohmmeter test or damage to the Ohmmeter  
may result.  
-Internal contact: Drink large quantities of water. Follow  
with Milk of Magnesia, beaten egg or vegetable oil. Get  
medical attention immediately!  
IMPORTANT: An ohmmeter reads the resistance of  
whatever component is connected between the test  
leads. It can be used to check wires, coils, light bulbs,  
or any item that conducts current.  
IMPORTANT: In case of internal contact, DO NOT  
induce vomiting!  
Inspection, Cleaning, Drying, and Maintenance  
Inspect the top of battery, terminals, cables, terminal  
posts, and case for any accumulation of dirt, corrosion  
cracks or loose or broken parts. Keep battery and its  
terminals clean. Inspect monthly to maintain best  
performance. Replace battery if damaged.  
9.3 BATTERY  
When charging battery, remove it from unit first. Keep  
batteries out of reach of children. ALWAYS follow  
information provided on battery by battery  
Remove hold down and bolt and lift battery out. Clean  
or service battery away from unit. Remove corrosion  
from battery terminals and cable connections with wire  
brush, then wash with a weak baking soda solution.  
manufacturer. Lead acid batteries generate explosive  
gases. Severe chemical burns can result from improper  
handling of battery electrolyte. Wear safety glasses  
and proper protective gear when handling batteries to  
prevent electrolyte from coming in contact with eyes,  
skin or clothing.  
Scrub the exterior of the battery and cable terminals  
with a nonmetallic brush which has been dipped into a  
mixture of baking soda and water.  
WARNING: ELECTRIC SHOCK may result in  
injury and/or damage to unit.  
After cleaning, apply a thin coat of grease or petroleum  
jelly to terminals and cable ends to retard corrosion.  
Reinstall battery.  
DO NOT allow tools or other objects to come  
into contact with both terminal at the same  
time. ALWAYS remove Negative (-) Cable first  
to reduce risk of sparks when removing bat-  
tery. ALWAYS connect Positive (+) Cable first,  
then connect Negative (-) Cable when install-  
ing battery.  
Check the alternator voltage regulator output (if used)  
at every periodic maintenance inspection. Over  
charging is a common cause of battery failure.  
Electrolyte Level  
Every 25 hours of operation, check electrolyte level of  
each cell by removing caps one at a time. The  
electrolyte level should be at level indicated. Use  
distilled water to fill each cell if needed. Install and  
tighten each cap after checking.  
9 - 26  
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IMPORTANT: When distilled water is added to battery  
during freezing weather, battery must be charged to  
mix water with electrolyte, or water will remain at top  
and freeze.  
8. Connect positive (+) lead of charger to positive (+)  
terminal, and negative (-) lead to negative (-)  
terminal.  
9. Charge the battery at two and a half amps for ten  
hours or until all cells are gassing freely and the  
specific gravity is constant over three 30 minute  
intervals.  
Battery Charger  
Under normal conditions, the engine alternator will  
have no problem keeping battery charged. When unit  
has set for an extended period of time without  
operation and the battery has been completely  
discharged, a battery charger will be required for  
recharging.  
10.Immediately after charging, check the electrolyte  
level. If low, add distilled water to bring cell up to  
required level.  
11.Replace caps finger tight, wash off and dry battery.  
Before using a charger, an attempt can be made to  
recharge the battery using the engine alternator by  
jump starting the unit and allowing the engine to run.  
12.Reinstall battery into unit and connect positive (+)  
cable first, then negative (-) cable.  
Specific Gravity Check  
Charging A New Battery  
The specific gravity should be checked with a  
hydrometer.  
WARNING: FROZEN BATTERIES CAN  
EXPLODE and result in death or serious  
injury.  
DO NOT charge a frozen battery. Let the  
battery thaw out before putting on a charger.  
NOTE: The specific gravity should be checked in each  
cell and should be the same for all cells. A variation in a  
cell reading could be an indication of a problem. Sub-  
tract .004 from 1.265 for each 10oF below 80oF or add  
.004 to 1.265 for each 10oF above 80oF.  
A special temperature compensated hydrometer is  
used to read the battery’s state of charge.  
IMPORTANT: DO NOT fast charge. Charging at a  
higher rate will damage or destroy battery.  
The reading on the hydrometer gauge should be above  
1.225. If the reading falls below 1.225 specific gravity  
there will be an insufficient charge.  
ALWAYS follow information provided on battery by  
battery manufacturer. Contact battery manufacturer for  
extensive instructions to charge battery.  
ALWAYS charge the battery until the specific gravity of  
1.265 is reached over 3 successive readings. Check  
monthly to ensure charge is maintained. The  
approximate state of charge can be determined by the  
cell specific gravity of the rested open circuit voltage at  
room temperature and the charging time can be  
estimated. For example:  
3
1
2
OCV  
Specific  
Gravity  
% of  
Charge  
Charging  
Time  
1. Positive terminal  
2. Negative terminal  
3. Battery  
12.60  
12.4  
1.265  
1.225  
1.180  
1.130  
1.100  
100%  
75%  
50%  
25%  
0%  
---  
3 hours  
7 hours  
10 hours  
12 hours  
Figure 20  
OF1670  
12.20  
12.00  
11.80  
1. Put unit into service position to gain access to  
battery.  
2. Disconnect negative (-) cable first, then positive (+)  
cable.  
3. Remove hold down and remove battery.  
If using an automatic tapering 12 volt charger, choosing  
a good quality 5 to 10 amps 15VDC minimum output  
charger and charge for 3 to 12 hours according to the  
battery state of charge (see table above) or until the  
specific gravity in each cell reaches 1.255 - 1.265  
specific gravity at 80 degrees F.  
4. Place battery on bench or other well ventilated  
place where electrolyte spill will not create  
damage.  
5. Remove caps and fill each cell to level indicated  
with electrolyte at 1.230 ± specific gravity and 80  
degrees F (27 degrees C).  
If using a constant current charger, charge at 1 to 2  
amperes for the time given on the table above or until  
full specific gravity is reached.  
6. Let battery stand for one half hour.  
7. Check electrolyte level and add more if necessary.  
9 - 27  
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IMPORTANT: Charging at higher rates will damage the  
battery and cause excessive gassing and acid  
spewing.  
9.4 SWITCHES  
Switches either open a circuit to stop current flow or  
close and allow current to flow through.  
Jump Starting  
A normally open (N.O.) switch prevents current flow  
until the switch is actuated, completing the circuit and  
allowing current to flow through it. An example is a light  
switch - the lights are off until the switch is actuated  
and the lights go on.  
The unit used for jump starting should have a 12 volt  
battery with at least 500 cold cranking amperes, and a  
negatively grounded system.  
1. Ensure battery is not frozen. If the fluid is frozen,  
remove battery from unit and allow to thaw before  
charging.  
A normally closed (N.C.) switch allows current to flow  
until the switch is actuated, breaking the circuit and  
stopping current flow through it. An example is an  
ignition switch that grounds the magneto when in the  
off position (completing the circuit) but opens the circuit  
when in the ON position allowing the engine to operate.  
2. Connect the positive (+) jumper cable to the  
positive (+) terminal of the discharged battery.  
3. Connect the other end of the same jumper cable to  
the positive (+) terminal of the booster battery.  
Switches are selected with regard to Current rating  
(contacts must be of sufficient size to carry the required  
current), Voltage rating (switches insulated for specific  
voltages), Case or housing (switches that are exposed  
to moisture and must be sealed to prevent moisture  
from entering), and Actuating type (push, pull, rotary,  
momentary contact, or micro switches).  
4. Connect one end of the second jumper cable to the  
negative (-) terminal of the booster battery.  
5. Make the final jumper cable connection to the  
engine block or the furthest ground point away from  
the discharged battery.  
WARNING: Make sure cables are clear of any  
moving engine parts before starting engine.  
NOTE: Check that the connections to the switches are  
secure and that a switch is being activated properly  
before performing electrical test on switches. (Safety  
switches on speed selector and clutch levers may be  
out of adjustment and not activating.)  
6. Start engine (refer to Owner’s Manual). If engine  
will not start after several tries, unit or battery may  
need service.  
IMPORTANT: When checking switches, remove them  
from their respective circuit by disconnecting the wires  
from the switch at the connector(s). Damage could  
result to the meter or machine components if switches  
are left in.  
7. After engine starts, leave cables connected for one  
to two minutes.  
8. Disconnect cables in reverse order.  
9. Operate unit as normal to charge battery.  
Normally Open Switch  
Storage  
To test a normally open switch (key, headlight, safety, or  
seat) connect the ohmmeter across the switch  
terminals. Meter should indicate open circuit (infinite  
resistance). Activate the switch. The ohmmeter should  
read up scale to zero resistance (Close Circuit). This  
indicates the switch is operating properly. Also check  
from each terminal to the switch case (if case is metal).  
reading should show infinite resistance indicating no  
short to ground.  
The battery is a perishable item and it should be stored  
properly to obtain a long, useful life. Batteries not in  
use will self discharge.  
If the battery will not be used for more than three  
months, it should be removed and stored in a cool, dry  
place.  
Any collection of dirt, grease, or electrolyte should be  
removed from the top of the battery.  
The battery must be recharged monthly or when the  
cell specific gravity reads less than 1.255 specific  
gravity. Before reinstalling the battery in the spring, it  
should always be fully recharged.  
Variation from test results described indicates a  
defective switch.  
Normally Closed Switch  
To test a normally closed switch connect the ohmmeter  
across the switch terminals. Meter should indicate a  
closed circuit (zero resistance). Activate the switch and  
the meter should move to open circuit (infinite  
resistance). Check from each terminal to ground  
(switch case). Meter should show open circuit (infinite  
resistance).  
Variation from test results described indicates a  
defective switch.  
9 - 28  
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To check electrically, connect a voltmeter across the  
coil of the device and activate the circuit that operates  
the relay or solenoid. If the meter indicates no voltage  
is applied, the cause is in the control circuit.  
Ignition Switch  
NOTE: Refer to the wiring diagram of the unit involved  
to determine switch functions and test using the meth-  
ods described.  
If the meter indicates proper voltage across the coil but  
the device does not function, remove the power,  
disconnect the wiring and check the continuity of the  
coil with an ohmmeter. The meter should indicate  
resistance, in the order of 3 to 5 ohms, if the coil is  
intact. A high resistance indicates an open coil and a  
defective device.  
The ignition switch incorporates a number of functions,  
although not all functions are used on all equipment.  
The switch has three positions: OFF, RUN, and a  
momentary contact START position. Use an ohmmeter  
to check the continuity of the switch in each position.  
OFF Position - Should be continuity between contacts  
G and M. These connections ground the engine  
magneto and stop the engine in the OFF position.  
There are also a number of mechanical problems that  
may cause the problem.  
RUN Position - Should be continuity between contacts  
B and A. These connections supply power to the rest of  
the wiring harness. Connections G and M open to each  
other.  
The starter solenoid in the Ariens equipment is a  
sealed unit used to actuate the starter motor on the  
engines. These solenoids may have three or four  
connections. The two large connections carry high  
current to operate the starter motor. The small  
connections are connected to the coil and carry the  
control current.  
START Position - Hold switch in START position while  
testing. There should be continuity between contacts  
S1 and S2. These connections apply power to close  
the solenoid contacts and operate the starter motor.  
To check the solenoid, disconnect the cables to the  
starter motor, turn the ignition switch to the start  
position, and listen for the solenoid to snap inside  
contacts closed.  
In addition to the above test, place the switch in the run  
position and check between each contact and ground  
(metal case) to be sure no terminals are grounded. If  
the switch is operating properly, there will be no  
If no snap is heard, check across the coils with a  
voltmeter. The voltage should read 12 volts with the  
ignition switch in the start position. If no voltage  
appears, the defect is in the start circuit.  
continuity between contacts other that those described.  
9.5 SOLENOID AND RELAYS  
Solenoid and relays are both magnetically operated  
devices. Both devices operate on the principle that  
passing a current of electricity through a coil of wire will  
create a magnetic field strong enough to attract a piece  
of iron or steel. Each device uses this principle in a  
slightly different manner.  
If the voltage is correct, turn off the power and check  
continuity of the coil with an ohmmeter. If the coil is  
open, the solenoid is defective and must be replaced.  
If the coil has the proper voltage applied, and the  
continuity check indicates the coil is intact, the solenoid  
plunger is stuck or the contacts are welded shut and  
the solenoid must be replaced.  
Relay - A basic relay consists of a coil of wire wound  
around a soft iron (magnetic) core. When current is  
passed through the coil, the core is magnetized and  
pulls down on a magnetic lever. The lever in turn is  
attached to several switch contacts which open or close  
other electrical circuits. In this fashion, a small current  
can control one or more larger electrical currents and  
actuate several other devices. In most cases a relay  
contact moves only a fraction of an inch and the  
magnetic pull is small.  
If the solenoid snaps shut, but the start does not  
operate, check across the large contacts with an  
ohmmeter. If there is no continuity when the solenoid  
snaps shut, the contacts are defective and the solenoid  
must be replaced.  
9.6 FUSES  
Fuses are connected in electrical circuits to protect the  
circuits from damage due to overload or short circuits.  
Fuses are a "weak link" in the circuit. They contain a  
metal link designed to melt when a certain current  
value is exceeded thus opening or disconnecting the  
wiring. Once a fuse blows or melts it must be discarded  
and replaced with a new fuse of the same value.  
Solenoid - A basic solenoid consists of a coil of wire  
wound around a hollow tube. A magnetic core slides  
inside the tube. When current is passed through the  
coil, the core is pulled into the solenoid with  
considerable force. With proper design, a solenoid can  
exert considerable force over a distance of several  
inched. A solenoid can therefore, pull a lever, close a  
heavy contact, or perform other jobs that require a  
straight line pull.  
Since the function of the fuse is to protect the circuit,  
NEVER attempt to defect the protective device by  
bridging or replacing with a device of a higher current  
rating.  
If a relay or solenoid fails to operate, the cause may be  
either electrical or mechanical.  
Electrical testing of these devices is simple. Since the  
device either conducts current (and is therefore  
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functioning) or the device is open and is therefore  
defective. Use an ohmmeter to check for continuity.  
9.7 DIODES AND RECTIFIERS  
Diodes are solid state, semiconductor devices. They  
contain no moving parts and conduct current better in  
one direction than the other. They are electrical "check  
valves" and permit current flow in one direction, but not  
in the other.  
Diodes allow current to flow through one circuit without  
"backing up" into another. In engine alternator circuits,  
a diode is used to convert current which flows back and  
forth (AC) in a circuit to current which flows only in one  
direction (DC). A device which converts alternating  
current to a direct current is called a RECTIFIER. A  
diode is one type of rectifier.  
To check a diode, isolate if from the circuit by  
disconnecting one end. With a multitester set on the  
lowest ohms scale setting, measure the resistance in  
one direction, reverse the test leads, and measure in  
the other direction. Readings should be high in one  
direction and low in the other. (If the readings are low in  
both directions, the diode is shorted, and if the  
readings are high, the diode is open.) If the readings  
are the same in both directions, the diode is defective  
and must be replaced.  
IMPORTANT: Diodes are marked to indicate polarity (a  
band on one end, an arrow on the side, or they fit on a  
holder only one way.  
Rectifiers  
A battery is charged through the use of an alternator  
located in or on the engine. A charging circuit contains  
a rectifier because alternators produce alternating  
current (AC) and batteries require direct current (DC)  
for charging.  
The rectifier may be built into the engine or it may be an  
external part. It may also contain a regulator to prevent  
overcharging the battery. (Servicing of rectifiers built  
into the engine should be done by an approved engine  
manufacturer’s service center. Such a service center  
has access to the information and parts required to test  
and repair or replace engine components, including  
rectifiers and regulators.)  
Units that contain both a rectifier and regulator are  
tested in a working circuit to make sure the regulator  
portion of the device is operating.  
9 - 30  
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9.8 WIRING DIAGRAMS  
Models 992018, 020, 021, 022, 024  
SEAT  
SWITCH  
SEAT / PTO RELAY  
PINK  
85  
87a  
87 86  
1
2
30  
CAB  
BLACK  
POWER  
SUPPLY  
2
1
W
PTO  
SWITCH  
BLACK  
Y
O
PTO  
CLUTCH  
RE  
7
PURPLE /  
WHITE  
HOUR  
METER  
4
3
1
2
1
9
PURPLE  
BLACK  
BLACK  
OIL  
LIGHT  
W
Y
O
OIL PRESSURE  
FUEL SOLENIOD  
REGULATOR  
BLUE / WHITE  
RED /YELLOW  
PURPLE  
WN  
O
BR  
START  
RELAY  
3
1
2
ENGINE  
4
BLACK  
86  
85  
87a  
87  
MAGNETO KILL  
WHITE / BLACK  
30  
STARTER  
SOLENOID  
W
RED  
Y
O
BLACK  
RE  
A
B
RED  
1
A
B
BRAKE  
SWITCH  
FUSE  
30A  
2
M
BATTERY  
BLACK  
V
T
BLACK  
G
RE  
S1  
BROWN  
RED / VIOLET  
S2  
KEY  
SWITCH  
9 - 31  
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Model 992305  
SEAT / PTO RELAY  
SEAT  
SWITCH  
PINK  
87a  
87  
85  
86  
1
2
30  
CAB  
BLACK  
POWER  
SUPPLY  
2
1
W
PTO  
SWITCH  
BLACK  
Y
O
PTO  
CLUTCH  
RE  
7
PURPLE /  
WHITE  
HOUR  
METER  
4
3
1
2
1
9
PURPLE  
BLACK  
BLACK  
OIL  
LIGHT  
W
Y
O
OIL PRESSURE  
FUEL SOLENIOD  
REGULATOR  
BLUE / WHITE  
RED /YELLOW  
PURPLE  
WN  
O
BR  
START  
RELAY  
3
1
2
ENGINE  
BLACK  
87a  
87  
86  
85  
MAGNETO KILL  
WHITE / BLACK  
BLUE  
30  
STARTER  
SOLENOID  
4
CE  
RELAY  
LIGHT BLUE  
W
BLACK  
2
1
Y
O
87a  
87  
86  
85  
HOOD  
SWITCH  
RE  
30  
BLACK  
DECK  
LID  
SWITCH  
L
                                             B
2
1
PURPLE  
A
B
RED  
RED  
1
A
B
BRAKE  
SWITCH  
FUSE  
30A  
2
M
BLACK  
V
T
BATTERY  
G
RE  
BLACK  
S1  
BROWN  
RED / VIOLET  
S2  
KEY  
SWITCH  
9 - 32  
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Model 992023  
SEAT  
SWITCH  
SEAT / PTO RELAY  
PINK  
85  
87a  
87 86  
1
2
30  
CAB  
BLACK  
POWER  
SUPPLY  
2
1
W
PTO  
SWITCH  
BLACK  
Y
PTO  
CLUTCH  
RED  
7
PURPLE /  
WHITE  
HOUR  
METER  
4
3
1
2
1
9
PURPLE  
BLACK  
BLACK  
OIL  
LIGHT  
W
Y
OIL PRESSURE  
FUEL SOLENIOD  
REGULATOR  
BLUE / WHITE  
RED /YELLOW  
PURPLE  
WN  
O
SWITCH  
BR  
START  
RELAY  
ENGINE  
BLACK  
86  
85  
87a  
87  
MAGNETO KILL  
WHITE / BLACK  
30  
STARTER  
W
Y
BLACK  
RED  
A
B
RED  
RED  
1
A
B
BRAKE  
SWITCH  
FUSE  
30A  
RED  
2
M
BATTERY  
BLACK  
V
T
BLACK  
G
RED  
S1  
BROWN  
1
2
RED / VIOLET  
STARTER  
SOLENOID  
S2  
BLACK  
KEY  
SWITCH  
9 - 33  
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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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