John deere f915 front mower service repair manual

TECHNICAL
MANUAL
Litho in U.S.A
John Deere
Lawn & Grounds Care Division
F911, F915, F925, F932
and F935 Front Mowers
Serial No. (010001— )
TM1487 (01OCT95)
Replaces TM1487 (15JAN93)

FOREWORD
This manual is written for an experienced technician.
Essential tools required in performing certain service
work are identified in this manual and are
recommended for use.
Live with safety: Read the safety messages in the
introduction of this manual and the cautions
presented throughout the text of the manual.
N This is the safety-alert symbol. When you see
this symbol on the machine or in this manual,
be alert to the potential for personal injury.
Technical manuals are divided in two parts: repair
and diagnostics. Repair sections tell how to repair the
components. Diagnostic sections help you identify the
majority of routine failures quickly.
Information is organized in groups for the various
components requiring service instruction. At the
beginning of each group are summary listings of all
applicable essential tools, service equipment and
tools, other materials needed to do the job, and
service parts kits.
Section 10, Group 15—Repair Specifications, consist
of all applicable specifications, near tolerances and
specific torque values for various components on
each individual machine.
Binders, binder labels, and tab sets can be ordered
by John Deere dealers direct from the John Deere
Distribution Service Center.
This manual is part of a total product support
program.
FOS MANUALS—REFERENCE
TECHNICAL MANUALS—MACHINE SERVICE
COMPONENT MANUALS—COMPONENT SERVICE
Fundamentals of Service (FOS) Manuals cover basic
theory of operation, fundamentals of troubleshooting,
general maintenance, and basic type of failures and
their causes. FOS Manuals are for training new
personnel and for reference by experienced
technicians.
Technical Manuals are concise guides for specific
machines. Technical manuals are on-the-job guides
containing only the vital information needed for
diagnosis, analysis, testing, and repair.
Component Technical Manuals are concise service
guides for specific components. Component technical
manuals are written as stand-alone manuals covering
multiple machine applications.
MX,TM1487,IFC -19-21NOV90
Introduction
TM1487 (21NOV90) 900 Series
010395

Information
NOTES CONCERNING THIS REVISION OF TM1487:
The 900 Series Front Mowers have three serial number ranges that dictate the correct repair and other
procedures to be followed:
•(S.N. 010001—120000)
Units with a PTO engagement lever, a water-in-fuel indicator (diesel only) and without a Park Lock Switch
•(S.N. 120001—150000)
Units with a PTO engagement lever and a Park Lock Switch
•(S.N. 150001— )
Units with a PTO Solenoid Switch, a PTO Solenoid and Relay, and a Park Lock Switch
Not all pages have been changed to include references to the F925, please refer to the Contents Page for
each Section to find the repair procedures or other information for the F925. Otherwise, for all repair
information concerning the F925, use the following as a guide:
•Same Fuel system as the F915
•All other procedures are the same as the F935
SERIAL NUMBER RANGES WITH AFFECTED CHANGES
F911
•1991—1992 with S.N.’s 10001—120000 have a PTO engagement lever.
•1993—1995 with S.N.’s 120001—150000 have a park lock switch added.
•1995—1996 with S.N.’s 150001—150081 have a wiring harness with integrated diodes and a new PTO actuation
system.
•1995—1996 with S.N.’s starting at 150082— have a wiring harness with a diode pack and a new PTO actuation
system.
F915
•1987—1989 with S.N.’s 420001—750000 are covered by TM1350.
F925
•1993—1995 with S.N.’s 120001—150000 have a park lock switch.
system.
system.
F932
•1988—1989 with S.N.’s 475001—750000 have no Technical Manual available.
system.
system.
F935
•1986—1989 with S.N.’s 360001—750000 are covered by TM1350.
•1990—1992 with S.N.’s 010001—120000 have a PTO engagement lever and a water-in-fuel indicator.
•1993—1995 with S.N.’s 120001—150000 have a park lock switch added and no water-in-fuel indicator.
system.
system.
i

Contents
SECTION 10—GENERAL INFORMATION
Group 05—Safety
Group 10—General Specifications
Group 15—Repair Specifications
Group 20—Fuels and Lubricants
Group 25—Serial Number Locations
Group 30—Features & Attachments
SECTION 20—ENGINE REPAIR
Group 05—Engine—F911
Group 06—Engine—F915/F925/F935
Group 07—Engine—F932
Group 10—Cooling System
SECTION 30—FUEL AND AIR REPAIR
Group 05—Fuel System—F911/F932
Group 06—Fuel System—F915/F925/F935
Group 10—Air System
SECTION 40—ELECTRICAL REPAIR
Group 05—Alternator—F911
Group 08—Alternator—F925/F935
Group 10—Starter
Group 15—Ignition and Charging
System
Group 20—PTO Clutch
Group 25—Wiring Harness
SECTION 50—POWER TRAIN REPAIR
Group 05—Transmission
Group 10—Differential
Group 15—Axles
Group 20—Drive Shaft
Group 25—PTO Shaft
Group 30—Speed Control Linkage
SECTION 60—STEERING AND BRAKE REPAIR
Group 05—Steering Repair
Group 10—Brake Repair
Group 15—Rear Axle
SECTION 70—HYDRAULIC REPAIR
Group 05—Hydraulic Control Valve
Group 10—Hydraulic Lift Cylinders
Group 15—Weight Transfer Valve
Group 20—Oil Cooler
SECTION 80—MISCELLANEOUS REPAIR
Group 05—Rear Wheels
Group 10—Mower Deck Repair
Group 15—ROLL-GARD
SECTION 210—TEST & ADJUSTMENT
SPECIFICATIONS/OPERATIONAL
CHECKOUT PROCEDURE
Group 05—Test and Adjustment Specifications
Group 10—Operational Checkout Procedures
SECTION 220—ENGINE OPERATION, TESTS
AND ADJUSTMENTS—F911
Group 05—Component Location
Group 10—Theory of Operation
Group 15—Diagnosis, Tests, and Adjustments
AND ADJUSTMENTS—F915/
F925/F935
AND ADJUSTMENTS—F932
SECTION 230—FUEL/AIR OPERATION, TESTS &
ADJUSTMENTS—F911
Continued on next page
ii
All information, illustrations and specifications in this manual are based on
the latest information available at the time of publication. The right is
reserved to make changes at any time without notice.
TM1487-19-01SEP95
COPYRIGHT©1995
DEERE & COMPANY
Moline, Illinois
All rights reserved
A John Deere ILLUSTRUCTION®
Manual
Previous Editions
Copyright© 1995 Deere & Company

Contents
ADJUSTMENTS—F915/F925/
F935
ADJUSTMENTS—F932
SECTION 240—ELECTRICAL OPERATION, TESTS
& ADJUSTMENTS—F911
Group 20—Electrical Schematic
& ADJUSTMENTS—F915/F925/
F935
SECTION 250—POWER TRAIN OPERATION, TESTS
SECTION 260—POWER TRAIN OPERATION, TESTS
& ADJUSTMENTS
SECTION 260—STEERING & BRAKES OPERATION,
TESTS & ADJUSTMENTS
Group 20—System Schematic Diagram
SECTION 299—FABRICATED TOOLS
Group 00—Dealer Fabricated Tools
iii

Contents
Page
Page
Section 10
GENERAL INFORMATION
Group 05—Safety. . . . . . . . . . . . . . . . . . . .10-05-1
Group 10—General Specifications
Machine Specifications
F911 and F932 . . . . . . . . . . . . . . . . . . . . .10-10-1
F915, F925 and F935 . . . . . . . . . . . . . . . .10-10-3
Group 15—Repair Specifications
F911 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-15-1
F915. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-15-5
F932. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-15-9
F925, F935. . . . . . . . . . . . . . . . . . . . . . . . .10-15-13
Inch Series Torque Chart . . . . . . . . . . . . . .10-15-17
Metric Series Torque Chart . . . . . . . . . . . .10-15-18
Service Recommendations For O-Ring
Boss Fittings . . . . . . . . . . . . . . . . . . . . . .10-15-19
Service Recommendations For Flat Face
O-Ring Seal Fittings . . . . . . . . . . . . . . . .10-15-20
Group 20—Fuels and Lubricants
Gasoline. . . . . . . . . . . . . . . . . . . . . . . . . . . .10-20-1
Diesel Fuel . . . . . . . . . . . . . . . . . . . . . . . . . .10-20-2
Diesel Fuel Storage . . . . . . . . . . . . . . . . . . .10-20-2
Hydrostatic Drive Oil
North America. . . . . . . . . . . . . . . . . . . . . .10-20-3
Europe . . . . . . . . . . . . . . . . . . . . . . . . . . .10-20-4
Grease . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-20-5
Group 25—Serial Number Locations
Serial Numbers . . . . . . . . . . . . . . . . . . . . . .10-25-1
Product Identification Number . . . . . . . . . . .10-25-1
Engine Serial Number . . . . . . . . . . . . . . . . .10-25-2
Transmission Serial Number . . . . . . . . . . . .10-25-2
Differential Serial Number . . . . . . . . . . . . . .10-25-3
Control Valve Serial Number . . . . . . . . . . . .10-25-3
Group 30—Features and Attachments
Standard Features
F911. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1
F915/F925/F932/F935. . . . . . . . . . . . . . . 10-30-2
New Features—F915/F925/F932/F935 . . . 10-30-3
Options
Factory. . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-4
Field Installed. . . . . . . . . . . . . . . . . . . . . . 10-30-4
Attachments . . . . . . . . . . . . . . . . . . . . . . . . 10-30-5
10-1

RECOGNIZE SAFETY INFORMATION
This is the safety-alert symbol. When you see this
symbol on your machine or in this manual, be alert to
the potential for personal injury.
Follow recommended precautions and safe operating
practices.
T81389
-UN-07DEC88
UNDERSTAND SIGNAL WORDS
A signal word—DANGER, WARNING, or CAUTION—is
used with the safety-alert symbol. DANGER identifies the
most serious hazards.
DANGER or WARNING safety signs are located near
specific hazards. General precautions are listed on
CAUTION safety signs. CAUTION also calls attention to
safety messages in this manual.
TS187
-19-30SEP88
FOLLOW SAFETY INSTRUCTIONS
Carefully read all safety messages in this manual and on
your machine safety signs. Keep safety signs in good
condition. Replace missing or damaged safety signs. Be
sure new equipment components and repair parts include
the current safety signs. Replacement safety signs are
available from your John Deere dealer.
Learn how to operate the machine and how to use
controls properly. Do not let anyone operate without
instruction.
Keep your machine in proper working condition.
Unauthorized modifications to the machine may impair
the function and/or safety and affect machine life.
If you do not understand any part of this manual and
need assistance, contact your John Deere dealer.
TS201
-UN-23AUG88
DX,ALERT -19-04JUN90
DX,SIGNAL -19-04JUN90
DX,READ -19-04JUN90
Group 05
Safety
TM1487 (21NOV90) 10-05-1 900 Series
010395
10
05
1

HANDLE FLUIDS SAFELY—AVOID FIRES
When you work around fuel, do not smoke or work near
heaters or other fire hazards.
Store flammable fluids away from fire hazards. Do not
incinerate or puncture pressurized containers.
Make sure machine is clean of trash, grease, and debris.
Do not store oily rags; they can ignite and burn
spontaneously.
TS227
-UN-23AUG88
PREVENT BATTERY EXPLOSIONS
Keep sparks, lighted matches, and open flame away
from the top of battery. Battery gas can explode.
Never check battery charge by placing a metal object
across the posts. Use a volt-meter or hydrometer.
Do not charge a frozen battery; it may explode. Warm
battery to 16˚C (60˚F).
TS204
-UN-23AUG88
PREPARE FOR EMERGENCIES
Be prepared if a fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance
service, hospital, and fire department near your
telephone.
TS291
-UN-23AUG88
DX,FLAME -19-04JUN90
DX,SPARKS -19-04JUN90
DX,FIRE2 -19-04JUN90
Safety
TM1487 (21NOV90) 10-05-2 900 Series
010395
10
05
2

PREVENT ACID BURNS
Sulfuric acid in battery electrolyte is poisonous. It is
strong enough to burn skin, eat holes in clothing, and
cause blindness if splashed into eyes.
Avoid the hazard by:
1. Filling batteries in a well-ventilated area.
2. Wearing eye protection and rubber gloves.
3. Avoiding breathing fumes when electrolyte is added.
4. Avoiding spilling or dripping electrolyte.
5. Use proper jump start procedure.
If you spill acid on yourself:
1. Flush your skin with water.
2. Apply baking soda or lime to help neutralize the acid.
3. Flush your eyes with water for 10—15 minutes. Get
medical attention immediately.
If acid is swallowed:
1. Drink large amounts of water or milk.
2. Then drink milk of magnesia, beaten eggs, or
vegetable oil.
3. Get medical attention immediately.
TS203
-UN-23AUG88
SERVICE COOLING SYSTEM SAFELY
Explosive release of fluids from pressurized cooling
system can cause serious burns.
Shut off engine. Only remove filler cap when cool
enough to touch with bare hands. Slowly loosen cap to
first stop to relieve pressure before removing completely.
TS281
-UN-23AUG88
DX,POISON -19-04JUN90
DX,RCAP -19-04JUN90
Safety
TM1487 (21NOV90) 10-05-3 900 Series
010395
10
05
3

AVOID HIGH-PRESSURE FLUIDS
Escaping fluid under pressure can penetrate the skin
causing serious injury.
Avoid the hazard by relieving pressure before
disconnecting hydraulic or other lines. Tighten all
connections before applying pressure.
Search for leaks with a piece of cardboard. Protect
hands and body from high pressure fluids.
If an accident occurs, see a doctor immediately. Any
fluid injected into the skin must be surgically removed
within a few hours or gangrene may result. Doctors
unfamiliar with this type of injury may call the Deere &
Company Medical Department in Moline, Illinois, or other
knowledgeable medical source.
X9811
-UN-23AUG88
PARK MACHINE SAFELY
Before working on the machine:
• Lower all equipment to the ground.
• Stop the engine and remove the key.
• Disconnect the battery ground strap.
• Hang a “DO NOT OPERATE” tag in operator station.
TS230
-UN-24MAY89
DX,FLUID,NA -19-11JUN90
DX,PARK -19-04JUN90
Safety
TM1487 (21NOV90) 10-05-4 900 Series
010395
10
05
4

SUPPORT MACHINE PROPERLY
Always lower the attachment or implement to the ground
before you work on the machine. If you must work on a
lifted machine or attachment, securely support the
machine or attachment.
Do not support the machine on cinder blocks, hollow
tiles, or props that may crumble under continuous load.
Do not work under a machine that is supported solely by
a jack. Follow recommended procedures in this manual.
TS229
-UN-23AUG88
WEAR PROTECTIVE CLOTHING
Wear close fitting clothing and safety equipment
appropriate to the job.
Prolonged exposure to loud noise can cause impairment
or loss of hearing.
Wear a suitable hearing protective device such as
earmuffs or earplugs to protect against objectionable or
uncomfortable loud noises.
Operating equipment safely requires the full attention of
the operator. Do not wear radio or music headphones
while operating machine.
TS206
-UN-23AUG88
WORK IN CLEAN AREA
Before starting a job:
• Clean work area and machine.
• Make sure you have all necessary tools to do your job.
• Have the right parts on hand.
• Read all instructions thoroughly; do not attempt
shortcuts.
T6642EJ
-UN-18OCT88
DX,LOWER -19-04JUN90
DX,WEAR -19-10SEP90
DX,CLEAN -19-04JUN90
Safety
TM1487 (21NOV90) 10-05-5 900 Series
010395
10
05
5

10-05-06
Safety
SERVICE MACHINES SAFELY
Tie long hair behind your head. Do not wear a necktie,
scarf, loose clothing, or necklace when you work near
machine tools or moving parts. If these items were to get
caught, severe injury could result.
Remove rings and other jewelry to prevent electrical shorts
and entanglement in moving parts.
WORK IN VENTILATED AREA
WARNING: California Proposition 65 Warning
Diesel engine exhaust and some of its constituents are
known to the State of California to cause cancer, birth
defects, and other reproductive harm.
Gasoline engine exhaust from this product contains
chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
ILLUMINATE WORK AREA SAFELY
Illuminate your work area adequately but safely. Use a
portable safety light for working inside or under the
machine. Make sure the bulb is enclosed by a wire cage.
The hot filament of an accidentally broken bulb can ignite
spilled fuel or oil.
REPLACE SAFETY SIGNS
Replace missing or damaged safety signs. See the
machine operator’s manual for correct safety sign
placement.

USE PROPER LIFTING EQUIPMENT
Lifting heavy components incorrectly can cause severe
injury or machine damage.
Follow recommended procedure for removal and
installation of components in the manual.
TS226
-UN-23AUG88
KEEP ROPS INSTALLED PROPERLY
Make certain all parts are reinstalled correctly if the
roll-over protective structure (ROPS) is loosened or
removed for any reason. Tighten mounting bolts to
proper torque.
The protection offered by ROPS will be impaired if
ROPS is subjected to structural damage, is involved in
an overturn incident, or is in any way altered by welding,
bending, drilling, or cutting. A damaged ROPS should be
replaced, not reused.
TS212
-UN-23AUG88
DX,LIFT -19-04JUN90
DX,ROPS3 -19-04JUN90
Safety
TM1487 (21NOV90) 10-05-7 900 Series
010395
10
05
7

SERVICE TIRES SAFELY
Explosive separation of a tire and rim parts can cause
serious injury or death.
Do not attempt to mount a tire unless you have the
proper equipment and experience to perform the job.
Always maintain the correct tire pressure. Do not inflate
the tires above the recommended pressure. Never weld
or heat a wheel and tire assembly. The heat can cause
an increase in air pressure resulting in a tire explosion.
Welding can structurally weaken or deform the wheel.
When inflating tires, use a clip-on chuck and extension
hose long enough to allow you to stand to one side and
NOT in front of or over the tire assembly. Use a safety
cage if available.
Check wheels for low pressure, cuts, bubbles, damaged
rims or missing lug bolts and nuts.
TS952
-UN-12APR90
AVOID HARMFUL ASBESTOS DUST
Avoid breathing dust that may be generated when
handling components containing asbestos fibers. Inhaled
asbestos fibers may cause lung cancer.
Components in products that may contain asbestos fibers
are brake pads, brake band and lining assemblies, clutch
plates, and some gaskets. The asbestos used in these
components is usually found in a resin or sealed in
some way. Normal handling is not hazardous as long as
airborne dust containing asbestos is not generated.
Avoid creating dust. Never use compressed air for
cleaning. Avoid brushing or grinding of asbestos
containing materials. When servicing, wear an approved
respirator. A special vacuum cleaner is recommended to
clean asbestos. If not available, wet the asbestos
containing materials with a mist of oil or water.
Keep bystanders away from the area.
TS220
-UN-23AUG88
DX,TIRECP -19-24AUG90
DX,DUST -19-27AUG90
Safety
TM1487 (21NOV90) 10-05-8 900 Series
010395
10
05
8

AVOID HEATING NEAR PRESSURIZED
FLUID LINES
Flammable spray can be generated by heating near
pressurized fluid lines, resulting in severe burns to
yourself and bystanders. Do not heat by welding,
soldering, or using a torch near pressurized fluid lines or
other flammable materials. Pressurized lines can be
accidentally cut when heat goes beyond the immediate
flame area.
TS953
-UN-15MAY90
REMOVE PAINT BEFORE WELDING OR
HEATING
Avoid potentially toxic fumes and dust.
Hazardous fumes can be generated when paint is
heated by welding, soldering, or using a torch.
Do all work outside or in a well ventilated area. Dispose
of paint and solvent properly.
Remove paint before welding or heating:
• If you sand or grind paint, avoid breathing the dust.
Wear an approved respirator.
• If you use solvent or paint stripper, remove stripper
with soap and water before welding. Remove solvent or
paint stripper containers and other flammable material
from area. Allow fumes to disperse at least 15 minutes
before welding or heating.
TS220
-UN-23AUG88
DX,TORCH -19-05OCT90
DX,PAINT -19-04JUN90
Safety
TM1487 (21NOV90) 10-05-9 900 Series
010395
10
05
9

USE PROPER TOOLS
Use tools appropriate to the work. Makeshift tools and
procedures can create safety hazards.
Use power tools only to loosen threaded parts and
fasteners.
For loosening and tightening hardware, use the correct
size tools. DO NOT use U.S. measurement tools on
metric fasteners. Avoid bodily injury caused by slipping
wrenches.
Use only service parts meeting John Deere
specifications.
TS779
-UN-08NOV89
DISPOSE OF FLUIDS PROPERLY
Improperly disposing of fluids can harm the environment
and ecology. Before draining any fluids, find out the
proper way to dispose of waste from your local
environmental agency.
Use proper containers when draining fluids. Do not use
food or beverage containers that may mislead someone
into drinking from them.
DO NOT pour oil into the ground, down a drain, or into a
stream, pond, or lake. Observe relevant environmental
protection regulations when disposing of oil, fuel, coolant,
brake fluid, filters, batteries, and other harmful waste.
TS222
-UN-23AUG88
LIVE WITH SAFETY
Before returning machine to customer, make sure
machine is functioning properly, especially the safety
systems. Install all guards and shields.
TS231
-19-07OCT88
DX,REPAIR -19-04JUN90
DX,DRAIN -19-05JUN90
DX,LIVE -19-04JUN90
Safety
TM1487 (21NOV90) 10-05-10 900 Series
010395
10
05
10

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Group 10
General Specifications
MACHINE SPECIFICATIONS—F911 AND F932
F911 F932
ENGINE
Make Kawaski Yanmar
Type Liquid Cooled Gasoline Liquid Cooled Gasoline
Model FD620D-AS00 3TG72UJF
Horsepower 16.4 kW (22 hp) 20.9 kW (28hp)
Number of Cylinders 2 3
Cycle 4 4
Displacement 617 cm3
(37.7 cu in.) 879 cm3
(53.6 cu in.)
Bore 76 mm (2.99 in.) 72 mm (2.84 in.)
Stroke 68 mm (2.66 in.) 72 mm (2.84 in.)
Compression Ratio 10.3:1 8.7:1
Speed, Fast (no load) 3650 rpm 3400 rpm
Speed, Idle (no load) 1550 rpm 1700 rpm
Lubrication Full Pressure Full Pressure
Cooling System Water Pump Water Pump
Oil Filter Full flow replaceable Full flow replaceable
Air Cleaner Dry, replaceable primary and Dry, replaceable primary and
secondary elements secondary elements
FUEL SYSTEM
Fuel Unleaded gasoline with a Unleaded gasoline with a
minimum antiknock index of 87 minimum antiknock index of 87
Fuel Filter Replaceable in-line filter Replaceable in-line filter
Fuel Pump Electric Electric
ELECTRICAL SYSTEM
Type 12 volt, negative ground 12 volt, negative ground
Charging System Stator Alternator
Capacity 16 amp Regulator 40 amp
Battery Size 491 CCA @ -18° C (0° F) 491 CCA @ -18° C (0° F)
Capacity at 25 amps 102 min. 102 min.
POWER TRAIN
Transmission Hydrostatic U-type Hydrostatic U-type
Manufacturer Sundstrand 15 series Sundstrand 15 series
Number of Speeds infinite Infinite
Travel Speeds
Forward 0—17 km/h (0—10.6 mph) 0—17 km/h (0—10.6 mph)
Reverse 0—8.5 km/h (0—5.3 mph) 0—8.5 km/h (0—5.3 mph)
Differential Peerless Single Speed Peerless Single Speed
(with Differential Lock) (with Differential Lock)
PTO Clutch Electric Electric
10-10-1

General Specifications/Machine Specifications
F911 F932
STEERING/BRAKES
Steering Power, Hydrostatic Power Hydrostatic
Brakes Independent, shoe and drum Independent, shoe and drum
HYDRAULIC SYSTEM
Control Valve 2-Spool (open center) 2-Spool (open center)
Outlets 1 Set (front) 1 Set (front)
Lift Cylinders Front-mounted Front-mounted
CAPACITIES
Fuel Tank 20.8 L (5.5 U.S. gal) 41.6 L (11 U.S. gal)
Transmission 4.4 L (4.6 U.S. qt) 4.4 L (4.6 U.S. qt)
Cooling System 3.5 L (3.7 U.S. qt) 4.93 L (5.21 U.S. qt)
Crankcase (w/filter) 1.7 L (1.8 U.S. qt) 3.2 L (3.4 U.S. qt))
Crankcase (w/o filter) 1.5 L (1.6 U.S. qt) 2.9 L (3.1 U.S. qt))
TIRES
Standard Equipment
Front (Drive) 23 x 8.5—12, 4PR 23 x 8.5—12, 4PR
Rear (Steering) 16 x 6.5—8, 4PR 16 x 6.5—8, 4PR
DIMENSIONS
Overall Height to Top of
Steering Wheel 1.28 m (50.5 in.) 1.35 m (53.5 in.)
Overall Height to Top of
Hood 0.902 m (35.5 in.) 0.97 m (38.5 in.)
Overall Height w/ROPS 1.92 m (78 in.) 2.0 m (81 in.)
Overall Width 1.09 m (42.8 in.) 1.09 m (42.8 in.)
Overall Length 1.92 m (75.6 in.) 2.16 m (85.2 in.)
with 50 in. mower 2.72 m (107 in.) N/A
with 60 in. mower 2.68 m (105.5 in.) 2.87 m (112.9 in.)
with 72 in. mower 2.93 m (115.4 in.) 2.93 m (115.4 in.)
with 76 in. mower N/A 3.3 m (129.7 in.)
Ground Clearance 127 mm (5 in.) 165 mm (6.5 in.)
Wheelbase 1.25 m (49.2 in.) 1.43 m (56.3 in.)
Minimum Turn Radius
Without Brakes
-Left-hand 394 mm (15.5 in.) 445 mm (17.5 in.)
-Right-hand 686 mm (27 in.) 737 mm (29 in.)
With Brakes
-Left-hand 0 0
-Right-hand 0 0
Approximate
Shipping Weight 614 kg (1382 lb) 659 kg (1483 lb)
(Specifications and design subject to change without notice.)
10-10-2

General Specifications/Machine Specifications
MACHINE SPECIFICATIONS—F915, F925 AND F935
F915 F925 F935
ENGINE
Make Yanmar Yanmar Yanmar
Type Diesel Diesel Diesel
Model 3TN66UJF 3TNA72UJ2F 3TNA72UJ2F
Horsepower 11.9 kW (16 hp) 16.4 kW (22 hp) 16.4 kW (22 hp)
Number of Cylinders 3 3 3
Cycle 4 4 4
Displacement 658 cm3 (40.2 cu in.) 879 cm3 (53.6 cu in.) 879 cm3 (53.6 cu in.)
Bore 66 mm (2.60 in.) 72 mm (2.84 in.) 72 mm (2.84 in.)
Stroke 64.2 mm (2.53 in.) 72 mm (2.84 in.) 72 mm (2.84 in.)
Compression Ratio 23.0:1 22.3:1 22.3:1
Speed, Fast (no load) 3650 rpm 3625 rpm 3625 rpm
Speed, Idle (no load) 1300 ± 50 rpm 1450 rpm 1450 rpm
Lubrication Full Pressure Full Pressure Full Pressure
Cooling System Water Pump Water Pump Water Pump
Oil Filter Full flow replaceable Full flow replaceable Full flow replaceable
Air Cleaner Dry, replaceable primary Dry, replaceable primary Dry, replaceable primary
and secondary elements and secondary elements and secondary elements
FUEL SYSTEM
Type Indirect injection, Indirect injection, Indirect injection,
precombustion chamber precombustion chamber precombustion chamber
Injection-Pump Type In-line multi-plunger In-line multi-plunger In-line multi-plunger
with electric shut-off with electric shut-off with electric shut-off
Fuel Consumption
Full Load 4.2 L/hr (1.1 gal/hr) 6 L/hr (1.6 gal/hr) 6 L/hr (1.6 gal/hr)
@ 3200 rpm @ 3200 rpm @ 3200 rpm
One-half Load 2.3 L/hr (0.6 gal/hr) 3 L/hr (0.8 gal/hr) 3 L/hr (0.8 gal/hr)
@ 3200 rpm @ 3200 rpm @ 3200 rpm
Fuel No. 1 or No. 2 Diesel No. 1 or No. 2 Diesel No. 1 or No. 2 Diesel
Fuel/Water Separator Replaceable paper element Replaceable filter element Replaceable filter element
Fuel Pump Electric Electric Electric
ELECTRICAL SYSTEM
Type 12 volt, negative ground 12 volt, negative ground 12 volt, negative ground
Charging System Alternator Alternator Alternator
Capacity 20 amp 40 amp 40 amp
Battery Size 491 CCA @ -18° C (0° F) 491 CCA @ -18° C (0° F) 491 CCA @ -18° C (0° F)
Capacity at 25 amps 102 min. 102 min. 102 min.
POWER TRAIN
Transmission Hydrostatic U-type Hydrostatic U-type Hydrostatic U-type
Manufacturer Sundstrand 15 series Sundstrand 15 series Sundstrand 15 series
Number of Speeds infinite Infinite Infinite
Travel Speeds
Forward 0—16 km/h (0—10 mph) 0—17 km/h (0—10.5 mph) 0—17 km/h (0—10.5 mph)
Reverse 0—8 km/h (0—5 mph) 0—8.5 km/h (0—5.3 mph) 0—8.5 km/h (0—5.3 mph)
10-10-3

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