John Deere 655, 755, 855, 955, 756 Technical Manual

...

655, 755, 855, 955,

756 and 856 Compact

Utility Tractors

TECHNICAL

MANUAL

John Deere

Lawn & Grounds Care Division

TM1360 (June 1996)

Litho in U.S.A

FOREWORD

Introduction

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.

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, service parts kits, specifications, wear tolerances, and torque values.

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.

NOTE: The 756 and 856 tractors are identical to the

755 and 855 tractors; therefore, all information pertaining to the 755 also pertains to the 756 and the same is true for the 855 and the 856 tractors. The 655, 756 and 856 tractors were all discontinued before the late model 755 and 855 tractors and the new 955 tractors were produced. Therefore, any late model references do not include the 655, 756, and 856 tractors.

MX,TM1360,IFC -19-16OCT91

TM1360 (16OCT91) 55, 56 Series Tractors

010395

SECTION 10—GENERAL INFORMATION

Group 05—Safety Group 10—Repair Specifications Group 15—Repair Information Group 20—Fuels, Lubricants, and Coolants Group 25—Serial Number Locations

SECTION 20—DIESEL ENGINE REPAIR

Group 05—Yanmar Diesel Engine Repair Group 10—Remove and Install Oil Cooler Group 15—Remove and Install Radiator Group 20—Remove and Install Diesel Engine

SECTION 30—FUEL AND AIR REPAIR

Group 05—Fuel Transfer Pump Group 10—Fuel Tank Group 15—Fuel Tank Tube and Sender Group 20—Air Cleaner

SECTION 40—ALTERNATOR REPAIR

Group 05—Alternator Repair Specifications Group 10—Alternator Installation

SECTION 80—MISCELLANEOUS REPAIR

Group 15—Operator’s Seat Group 20—European Roll-Gard

Group 25—German Rear Hitch Group 30—3-Point Hitch

SECTION 210—MACHINE OPERATIONAL

CHECKOUT PROCEDURE

Group 05—Machine Operational Checkout

Procedure

SECTION 220—ENGINE/FUEL OPERATION AND

TESTS

Group 05—Engine Systems Operational Checkout

Procedure

Group 10—Engine System Diagnosis

SECTION 240—ELECTRICAL OPERATION

AND TESTS

Group 05—Electrical System Checkout Group 10—Electrical System Diagnosis Group 15—Theory of Operation

SECTION 50—POWER TRAIN REPAIR

Group 05—Hydrostatic Transmission Group 10—Transaxle Group 15—Final Drives Group 20—Mechanical Front Wheel Drive

(MFWD) Group 25—Power Train Gears and Shafts Group 30—Speed Control Linkage

SECTION 60—STEERING AND BRAKES REPAIR

Group 05—Standard Front Axle Group 10—Steering Valve Group 15—Brake Linkage

SECTION 70—HYDRAULICS REPAIR

Group 05—Hydraulic Pump Group 10—Flow Divider and Selective Control

Valves (SCV’s) Group 15—Rockshaft Group 20—Hydraulic Hoses

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.

TM 1360-19-01Jun 96

SECTION 250—POWER TRAIN OPERATION

AND TESTS

Group 05—Power Train System Checkout Group 10—Power Train Tests and Adjustments Group 15—Theory of Operation

SECTION 260—STEERING AND BRAKE

OPERATION AND TESTS

Group 05—Steering and Brakes System Checkout Group 10—Steering and Brakes Tests and

Adjustments

Group 15—Theory of Operation

SECTION 270—HYDRAULIC OPERATION

AND TESTS

Group 05—Hydraulic System Checkout Group 10—Hydraulic System Tests and

Adjustments

Group 15—Theory of Operation

INDEX

DEERE & COMPANY

Moline, Illinois

A John Deere ILLUSTRUCTION Manual

Previous Editions

210

220

240

250

260

270

Contents

INDX

Contents

Page

Section 10

General Information

Page

Group 05—Safety

Safety Items. . . . . . . . . . . . . . . . . . . . . . . . .10-05-1

Group 10—Repair Specifications

General Tractor Specifications. . . . . . . . . . .10-10-1

Group 15—Repair Information

Metric Fastener Torque Values. . . . . . . . . . .10-15-1

Inch Fastener Torque Values . . . . . . . . . . . .10-15-2

O-Ring Face Seal Fittings . . . . . . . . . . . . . .10-15-3

O-Ring Boss Fittings . . . . . . . . . . . . . . . . . .10-15-4

Group 20—Fuels, Lubricants, and Coolants

Diesel Fuel—North America. . . . . . . . . . . . .10-20-1

Diesel Fuel Lubricity—North America . . . . .10-20-1

Diesel Fuel Storage—North America. . . . . .10-20-1

Diesel Fuel—Europe . . . . . . . . . . . . . . . . . .10-20-2

Diesel Fuel Lubricity—Europe . . . . . . . . . . .10-20-2

Diesel Fuel Storage—Europe . . . . . . . . . . .10-20-2

Engine Oil—North America . . . . . . . . . . . . .10-20-3

Engine Oil—Europe . . . . . . . . . . . . . . . . . . .10-20-4

Break-in Engine Oil—North America . . . . . .10-20-5

Break-in Engine Oil—Europe. . . . . . . . . . . .10-20-6

Hydrostatic Transmission and

Hydraulic Oil— North America. . . . . . . . . .10-20-7

Hydrostatic Transmission and

Hydraulic Oil— Europe . . . . . . . . . . . . . . .10-20-8

Gear Case Oil (MFWD)—North America. . . 10-20-9

Gear Case Oil (MFWD)—Europe. . . . . . . .10-20-10

Grease—North America. . . . . . . . . . . . . . . 10-20-11

Grease—Europe . . . . . . . . . . . . . . . . . . . .10-20-12

North America

Alternative Lubricants. . . . . . . . . . . . . . . . .10-20-13

Synthetic Lubricants. . . . . . . . . . . . . . . . . .10-20-13

Lubricant Storage. . . . . . . . . . . . . . . . . . . .10-20-13

Mixing of Lubricants. . . . . . . . . . . . . . . . . .10-20-13

Oil Filters . . . . . . . . . . . . . . . . . . . . . . . . . .10-20-13

Europe

Alternative Lubricants. . . . . . . . . . . . . . . . .10-20-14

Synthetic Lubricants. . . . . . . . . . . . . . . . . .10-20-14

Lubricant Storage. . . . . . . . . . . . . . . . . . . .10-20-14

Mixing of Lubricants. . . . . . . . . . . . . . . . . .10-20-14

Oil Filters . . . . . . . . . . . . . . . . . . . . . . . . . .10-20-14

Diesel Engine Coolant—North America. . .10-20-15

Diesel Engine Coolant—Europe . . . . . . . .10-20-16

Group 25—Serial Number Locations

Product Serial Number . . . . . . . . . . . . . . . . 10-25-1

Engine Serial Number. . . . . . . . . . . . . . . . . 10-25-1

Transaxle Serial Number . . . . . . . . . . . . . . 10-25-1

Mower Deck Serial Number . . . . . . . . . . . . 10-25-1

10-1

Contents

TM1360 (16OCT91) 10-2 55, 56 Series Tractors

010395

HANDLE FLUIDS SAFELY—AVOID FIRES

Group 05

Safety

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.

PREVENT BATTERY EXPLOSIONS

Keep sparks, lighted matches, and open flame away from the top of battery. Battery gas can explode.

10 05 1

TS227 -UN-23AUG88

DX,FLAME -19-04JUN90

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).

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.

TS204 -UN-23AUG88

DX,SPARKS -19-04JUN90

TS291 -UN-23AUG88

DX,FIRE2 -19-04JUN90

TM1360 (16OCT91) 10-05-1 55, 56 Series Tractors

010395

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.

Safety

DX,POISON -19-04JUN90

TS203 -UN-23AUG88

TM1360 (16OCT91) 10-05-2 55, 56 Series Tractors

010395

AVOID HIGH-PRESSURE FLUIDS

Safety

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 should reference a knowledgeable medical source. Such information is available from Deere & Company Medical Department in Moline, Illinois, U.S.A.

10 05 3

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.

DX,FLUID -19-09AUG91

TS230 -UN-24MAY89

DX,PARK -19-04JUN90

TM1360 (16OCT91) 10-05-3 55, 56 Series Tractors

010395

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.

Safety

TS229 -UN-23AUG88

DX,LOWER -19-04JUN90

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.

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.

TS206 -UN-23AUG88

DX,WEAR -19-10SEP90

Remove rings and other jewelry to prevent electrical shorts and entanglement in moving parts.

DX,LOOSE -19-04JUN90

TM1360 (16OCT91) 10-05-4 55, 56 Series Tractors

010395

TS228 -UN-23AUG88

WORK IN VENTILATED AREA

Safety

Engine exhaust fumes can cause sickness or death. If it is necessary to run an engine in an enclosed area, remove the exhaust fumes from the area with an exhaust pipe extension.

If you do not have an exhaust pipe extension, open the doors and get outside air into the area.

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.

10 05 5

TS220 -UN-23AUG88

DX,AIR -19-04JUN90

TS223 -UN-23AUG88

DX,LIGHT -19-04JUN90

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.

TS201 -UN-23AUG88

DX,SIGNS1 -19-04JUN90

DX,LIFT -19-04JUN90

TM1360 (16OCT91) 10-05-5 55, 56 Series Tractors

010395

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.

Safety

TS212 -UN-23AUG88

DX,ROPS3 -19-04JUN90

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.

DX,RIM -19-24AUG90

TM1360 (16OCT91) 10-05-6 55, 56 Series Tractors

010395

TS211 -UN-23AUG88

AVOID HARMFUL ASBESTOS DUST

Safety

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 material containing asbestos. When servicing, wear an approved respirator. A special vacuum cleaner is recommended to clean asbestos. If not available, apply a mist of oil or water on the material containing asbestos.

Keep bystanders away from the area.

10 05 7

TS220 -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.

DX,DUST -19-15MAR91

T6642EJ -UN-18OCT88

DX,CLEAN -19-04JUN90

TM1360 (16OCT91) 10-05-7 55, 56 Series Tractors

010395

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.

Safety

TS779 -UN-08NOV89

DX,REPAIR -19-04JUN90

DISPOSE OF WASTE PROPERLY

Improperly disposing of waste can threaten the environment and ecology. Potentially harmful waste used with John Deere equipment include such items as oil, fuel, coolant, brake fluid, filters, and batteries.

Use leakproof containers when draining fluids. Do not use food or beverage containers that may mislead someone into drinking from them.

Do not pour waste onto the ground, down a drain, or into any water source.

Air conditioning refrigerants escaping into the air can damage the Earth’s atmosphere. Government regulations may require a certified air conditioning service center to recover and recycle used air conditioning refrigerants.

Inquire on the proper way to recycle or dispose of waste from your local environmental or recycling center, or from your John Deere dealer.

TS1133 -UN-26NOV90

DX,DRAIN -19-09AUG91

TM1360 (16OCT91) 10-05-8 55, 56 Series Tractors

010395

LIVE WITH SAFETY

Safety

Before returning machine to customer, make sure machine is functioning properly, especially the safety systems. Install all guards and shields.

10 05 9

TS231 -19-07OCT88

DX,LIVE -19-04JUN90

TM1360 (16OCT91) 10-05-9 55, 56 Series Tractors

010395

10 05 10

Safety

TM1360 (16OCT91) 10-05-10 55, 56 Series Tractors

010395

Group 10

Repair Specifications

GENERAL TRACTOR SPECIFICATIONS

ITEM 655 755/756 855/856 955

ENGINE:

Engine Model . . . . . . . . . . . . 3TN66UJ 3TNA72UJ 3TN75RJ 3TN84RJ

Engine Horsepower, Net. . . 16 (11.9 kW) 20 (14.9 kW) 24 (17.9 kW) 33 (24.6 kW)

PTO Horsepower . . . . . . . 10.6 (8.1 kW) 15 (11.2 kW) 19 (14.2 kW) 27 (20.1 kW)

Rated Engine Speed. . . . . . . 3200 rpm 3200 rpm 3200 rpm 3200 rpm

Type . . . . . . . . . . . . . . . . . . . . Diesel Diesel Diesel Diesel

Operating Range . . . . . . .1400-3425 rpm 1400-3425 rpm 1400-3425 rpm 1400-3425 rpm

Number of Cylinders. . . . . . . . . . 3 3 3 3

Displacement . . . . . . . . . . . 40.2 cu. in. 53.6 cu. in. 60.7 cu. in. 87.3 cu. in.

658 cm³ 879 cm³ 995 cm³ 1430 cm³

Bore and Stroke . . . . . . . . .2.59x2.53 in. 2.83x2.83 in. 2.95x2.95 in. 3.31x3.39 in.

(66x64.2 mm) (72x72 mm) (75x75 mm) (84x86 mm)

Compression Ratio. . . . . . . . . 22.4:1 22.3:1 17.8:1 18.0:1

Lubrication . . . . . . . . . . . . . .Pressured Pressured Pressured Pressured

Cooling System. . . . . . . . . . Water-pump Water-pump Water-pump Water-pump

Air Cleaner . . . . . . . . . . . . Dry-Type with Dry-Type with Dry-Type with Dry-Type with

Safety Element Safety Element Safety Element Safety Element

Engine Shutoff . . . . . . . . . . . . . Key Key Key Key

Engine Torque at

Rated Speed. . . . . . . . . . . . . 35 N•m 45 N•m 58 N•m 73 N•m

(26 lb-ft) (33 lb-ft) (39 lb-ft) (54 lb-ft)

10 10

ELECTRICAL SYSTEM:

Type . . . . . . . . . . . . . . . . . . . . 12 volt 12 volt 12 volt 12 volt

Battery Size . . . . . . . . . 491 Cold Cranking 491 Cold Cranking 475 Cold Cranking 475 Cold Cranking

Amps @ -18° C Amps @ -18° C Amps @ -18° C Amps @ -18° C

Alternator . . . . . . . . . . . . . . . .35 Amp 35 Amp 35 Amp N/A

40 Amp 40 Amp 40 Amp 40 Amp

Starter Size. . . . . . . . . . . .1.3 hp (1.0 kW) 1.3 hp (1.0 kW) 1.3 hp (1.0 kW) 1.9 hp (1.4 kW)

FUEL SYSTEM:

Type . . . . . . . . . . . . . . . . Indirect Injection Indirect Injection Direct Injection Direct Injection

Injection Pump Type . . . . . . .In-line with In-line with In-line with In-line with

Electric Shutoff Electric Shutoff Electric Shutoff Electric Shutoff

Gallon/hr at 75% load

(mowing). . . . . . . . . . . . . .Not Available 0.86 0.79 1.4

DRIVE TRAIN:

Transmission Type . . . . Hydrostatic-2-range Hydrostatic-2-range Hydrostatic-2-range Hydrostatic-2-range

Transaxle Speed

Ranges . . . . . . . . . . . . . . . . .High/Lo High/Lo High/Lo High/Lo

Number of Speeds . . . . . . . . . Infinite Infinite Infinite Infinite

Final Drive. . . . . . . . . . . . . . . Planetary Planetary Planetary Planetary

Brakes. . . . . . . . . . . . . . . . . . Wet Disk Wet Disk Wet Disk Wet Disk

Steering . . . . . . . . . . . . . . . . . Power Power Power Power

Drawbar Tonque Weight

Capacity . . . . . . . . . . . . .675 lb. (306 kg) 675 lb. (306 kg) 675 lb. (306 kg) 800 lb. (363 kg)

10-10-1

Repair Specifications/General Specifications

GENERAL SPECIFICATIONS—CONTINUED

ITEM 655 755/756 855/856 955

HYDRAULIC SYSTEM:

Type of System . . . . . . . . . Open Center Open Center Open Center Open Center

Working Pressure . . . . . . . . . 2050 psi 2050 psi 2050 psi 2500 psi

(14135 kPa) (14135 kPa) (14135 kPa) (17240 kPa)

Pump Type . . . . . . . . . . . . Gerotor Gear Gerotor Gear Gerotor Gear Gerotor Gear

Pump Capacity . . . . . . . . . . . . 4 gpm 5.6 gpm 5.6 gpm 7.2 gpm

(0.25 L/s) (0.35 L/s) (0.35 L/s) (0.45 L/s)

3-PT. Hitch Type . . . . . . .Cat. 1 (Standard) Cat. 1 (Standard) Cat. 1 Cat. 1

Hitch Lift Capacity

(24 in. behind link arms)

Early Models . . . . . . . . . . . . 785 lbs. 785 lbs. 785 lbs. 957 lbs.

(357 kg) (357 kg) (357 kg) (434 kg)

Late Models or Retrofit . . . . . . N/A SN 180250— SN 180450— SN 180525—

N/A 1005 lbs. 1005 lbs. 1177 lbs.

(456 kg) (456 kg) (534 kg)

Lift Control Type . . . . . . . . . Position Position Position Position

PTO:

Type. . . . . . . . . . . . . . . . .Live Independent Live Independent Live Independent Live Independent

Speed (PTO rpm at 3200

engine rpm—full load):

Mid (1:1 gear ratio) . . . . . . . 2100 rpm 2100 rpm 2100 rpm 2100 rpm

Rear (1:3 gear ratio) . . . . . . 540 rpm 540 rpm 540 rpm 540 rpm

Clutch . . . . . . . . . . . . . . . . . . Hydraulic Hydraulic Hydraulic Hydraulic

Multi-Disk Multi-Disk Multi-Disk Multi-Disk

Brake. . . . . . . . . . . . . . . . . .Hydraulically Hydraulically Hydraulically Hydraulically

Controlled Controlled Controlled Controlled

MOWER BLADE TIP SPEED

(at 3200 engine rpm full load):

50 Inch Mower. . . . . . . . . . 15,371 ft/min N/A N/A N/A

(4688 m/min)

1:1.04 Gear Ratio . . . . .Spindle rpm 3389 N/A N/A N/A

60 Inch Mower. . . . . . . . . . . . . . N/A 15,471 ft/min 15,471 ft/min 15,471 ft/min

(4719 m/min) (4719 m/min) (4719 m/min)

1:1 Gear Ratio. . . . . . . . . . . . . N/A Spindle rpm 2883 Spindle rpm 2883 Spindle rpm 2883

72 Inch Mower. . . . . . . . . . . . . . N/A 15,167 ft/min 15,167 ft/min 15,167 ft/min

(4626 m/min) (4626 m/min) (4626 m/min)

1:1 Gear Ratio. . . . . . . . . . . . . N/A Spindle rpm 2321 Spindle rpm 2321 Spindle rpm 2321

261 Inch Mower. . . . . . . . . . . . . N/A 14,465 ft/min 14,465 ft/min 14,465 ft/min

(4412 m/min) (4412 m/min) (4412 m/min)

1:3 Gear Ratio. . . . . . . . . . . . . N/A Spindle rpm 2695 Spindle rpm 2695 Spindle rpm 2695

272 Inch Mower. . . . . . . . . . . . . N/A 14,601 ft/min 14,601 ft/min 14,601ft/min

(4453 m/min) (4453 m/min) (4453 m/min)

1:3 Gear Ratio. . . . . . . . . . . . . N/A Spindle rpm 2234 Spindle rpm 2234 Spindle rpm 2234

10-10-2

Repair Specifications/General Specifications

GENERAL SPECIFICATIONS—CONTINUED

ITEM 655 755/756 855/856 955

FLUID CAPACITIES:

Fuel Tank . . . . . . . . . . . 3.95 U.S. gal (15 L) 4.4 U.S. gal (16.7 L) 6.6 U.S. gal (25 L) 6.6 U.S. gal (25 L)

Cooling System. . . . . . . . 4 U.S. qt. (3.8 L) 4 U.S. qt. (3.8 L) 4.8 U.S. qt. (4.5 L) 4.8 U.S. qt. (4.5 L)

Crankcase (w/filter). . . . .2.5 U.S. qt. (2.4 L) 2.86 U.S. qt. (2.7 L) 4.1 U.S. qt. (3.9 L) 4.4 U.S. qt. (4.2 L)

Transmission and

Hydraulic System . . . . 4.5 U.S. gal. (17 L) 4.5 U.S. gal. (17 L) 4.5 U.S. gal. (17 L) 4.5 U.S. gal. (17 L)

MFWD Gear Case . . . .2.25 U.S. qt. (2.13 L) 2.25 U.S. qt. (2.13 L) 2.25 U.S. qt. (2.13 L) 3.5 U.S. qt. (3.3 L)

WEIGHT (includes fuel, oil, coolant and R-1 tires):

2WD . . . . . . . . . . . . . . . . . . . 1584 lbs. 1700 lbs. 1790 lbs. N/A

(718 kg) (771 kg) (812 kg)

MFWD. . . . . . . . . . . . . . . . . . 1680 lbs. 1835 lbs. 1870 lbs. 1990 lbs.

(762 kg) (832 kg) (848 kg) (903 kg)

SERVICE INTERVALS: Engine

Valve Adjustment . . . . . . . . .300 Hours 300 Hours 300 Hours 300 Hours

Primary Filter . . . . . . . . . . . .400 Hours 400 Hours 400 Hours 400 Hours

or every two years

10 10

Secondary Filter . . . . . . . Every two years Every two years Every two years Every two years

or when every third primary filter is installed

GROUND SPEEDS (at full engine rpm):

Forward High Range. . . . . .0—10.0 mph 0—10.6 mph 0—11.0 mph 0—11.4 mph

(0—16.1 K/hr) (0—17.1 K/hr) (0—17.7 K/hr) (0—18.3 K/hr)

Forward Lo Range . . . . . . .0—05.4 mph 0—05.8 mph 0—06.0 mph 0—05.1 mph

(0—08.7 K/hr) (0—09.3 K/hr) (0—09.7 K/hr) (0—08.2 K/hr)

Reverse High And Lo . . . . .0—05.0 mph 0—05.3 mph 0—05.5 mph 0—05.7 mph

(0—08.1 K/hr) (0—08.5 K/hr) (0—08.9 K/hr) (0—09.2 K/hr)

ENGINE COOLANT HEATER:

Current Draw Current Draw Current Draw Current Draw

400 Watts 400 Watts 400 Watts 400 Watts

SPARK ARRESTER:

Not Available Available Available Available

10-10-3

10 10

Repair Specifications/General Specifications

TM1360 (16OCT91) 10-10-4 55, 56 Series Tractors

010395

Group 15

Repair Information

METRIC FASTENER TORQUE VALUES

12.9

Dry

4.8

8.8

9.8

10.9

Property Class and Head Markings

Property

4.8

8.8

9.8

10.9

Class and Nut Markings

Class 4.8 Class 8.8 or 9.8 Class 10.9 Class 12.9

Lubricated SIZE N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft M6 M8

48 3.5 6 4.5 9 6.5 11 8.5 13 9.5 17 12 15 11.5 19 14.5

12 8.5 15 11 22 16 28 20 32 24 40 30 37 28 47 35

510

Dry

Lubricated

Dry

Lubricated

Dry

Lubricated

10 15 1

TS1163

M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36

23 17 29 21 43 32 55 40 63 47 80 60 75 55 95 70

40 29 50 37 75 55 95 70 110 80 140 105 130 95 165 120

63 47 80 60 120 88 150 110 175 130 225 165 205 150 260 109

100 73 125 92 190 140 240 175 275 200 350 225 320 240 400 300

135 100 175 125 260 195 330 250 375 275 475 350 440 325 560 410

190 140 240 180 375 275 475 350 530 400 675 500 625 460 800 580

260 190 330 250 510 375 650 475 725 540 925 675 850 625 1075 800

330 250 425 310 650 475 825 600 925 675 1150 850 1075 800 1350 1000

490 360 625 450 950 700 1200 875 1350 1000 1700 1250 1600 1150 2000 1500

675 490 850 625 1300 950 1650 1200 1850 1350 2300 1700 2150 1600 2700 2000

900 675 1150 850 1750 1300 2200 1650 2500 1850 3150 2350 2900 2150 3700 2750

1150 850 1450 1075 2250 1650 2850 2100 3200 2350 4050 3000 3750 2750 4750 3500

DO NOT use these hand torque values if a different torque value or tightening procedure is given for a specific application. Torque values listed are for general use only and include a ±10% variance factor. Check tightness of fasteners periodically. DO NOT use air powered wrenches.

Shear bolts are designed to fail under predetermined loads. Always replace shear bolts with identical grade.

Fasteners should be replaced with the same grade. Make sure fastener threads are clean and that you properly start thread engagement. This will prevent them from failing when tightening.

When bolt and nut combination fasteners are used, torque values should be applied to the NUT instead of the bolt head.

Tighten toothed or serrated-type lock nuts to the full torque value.

“Lubricated” means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings. “Dry” means plain or zinc plated (yellow dichromate - Specification JDS117) without any lubrication

Reference: JDS—G200.

10-15-1

Repair Information/Metric Cap Screw Torque Values

INCH FASTENER TORQUE VALUES

SAE Grade and Head Markings

No Marks

1 or 2

5.1

5.2

8.2

8 SAE Grade and Nut

No Marks

Markings

TS1 162

Grade 1 Grade 2

Lubricated SIZE N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4

3.7 2.8 4.7 3.5 6 4.5 7.5 5.5 9.5 712913.5 10 17 12.5

7.7 5.5 10 7 12 9151120 15 25 18 28 21 35 26

14 10 17 13 22 16 27 20 35 26 44 33 50 36 63 46

22 16 28 20 35 26 44 32 55 41 70 52 80 58 100 75

33 25 42 31 53 39 67 50 85 63 110 80 120 90 150 115

48 36 60 45 75 56 95 70 125 90 155 115 175 130 225 160

67 50 85 62 105 78 135 100 170 125 215 160 215 160 300 225

120 87 150 110 190 140 240 175 300 225 375 280 425 310 550 400

Dry

Lubricated

Grade 5, 5.1 or 5.2 Grade 8 or 8.2

Dry

Lubricated

Dry

Lubricated

Dry

7/8 1 1-1/8 1-1/4 1-3/8 1-1/2

190 140 240 175 190 140 240 175 490 360 625 450 700 500 875 650

290 210 360 270 290 210 360 270 725 540 925 675 1050 750 1300 975

470 300 510 375 470 300 510 375 900 675 1150 850 1450 1075 1850 1350

570 425 725 530 570 425 725 530 1300 950 1650 1200 2050 1500 2600 1950

750 550 950 700 750 550 950 700 1700 1250 2150 1550 2700 2000 3400 2550

1000 725 1250 925 990 725 1250 930 2250 1650 2850 2100 3600 2650 4550 3350

Shear bolts are designed to fail under predetermined loads. Always replace shear bolts with identical grade.

Fasteners should be replaced with the same grade. Make sure fastener threads are clean and that you properly start thread engagement. This will prevent them from failing when tightening.

When bolt and nut combination fasteners are used, torque values should be applied to the NUT instead of the bolt head.

Tighten toothed or serrated-type lock nuts to the full torque value.

“Lubricated” means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings. “Dry” means plain or zinc plated (yellow dichro-

mate - Specification JDS117) without any lubrication

“Grade 2” applies for hex cap screws (not hex bolts) up to 152 mm (6-in.) long. “Grade 1” applies for hex cap screws over 152 mm (6-in.) long, and for all other types of bolts and screws of any length.

Reference: JDS—G200.

10-15-2

Service Recommendations/O-Ring Face Seal Fittings

SERVICE RECOMMENDATIONS O-RING FACE SEAL FITTINGS

O-RING FACE SEAL FITTING INCH TORQUE

10 15

1. Inspect the fitting sealing surfaces (A). They must be

free of dirt or defects.

2. Inspect the O-ring (B). It must be free of damage or

defects.

3. Lubricate O-rings and install into groove using

petroleum jelly to hold in place.

4. Push O-ring into the groove with plenty of petroleum

jelly so O-ring is not displaced during assembly.

5. Index angle fittings and tighten by hand pressing joint

together to insure O-ring remains in place.

6. Tighten fitting or nut to torque value shown on the

chart per dash size stamped on the fitting. Do not allow hoses to twist when tightening fittings.

NOMINAL

Tube O.D. Size Torque Nut Torque

Dash

Size

THREAD SWIVEL NUT BULKHEAD

mm in. in. N•m lb-ft N•m lb-ft

6.35 0.250 -4 9/16-18 16 12 5.0 3.5

9.52 0.375 -6 11/16-16 24 18 9.0 6.5

12.70 0.500 -8 13/16-16 50 37 17.0 12.5

15.88 0.625 -10 1-14 69 51 17.0 12.5

19.05 0.750 -12 1 3/16-12 102 75 17.0 12.5

22.22 0.875 -14 1 3/16-12 102 75 17.0 12.5

25.40 1.000 -16 1 7/16-12 142 105 17.0 12.5

31.75 1.250 -20 1 11/16-12 190 140 17.0 12.5

38.10 1.500 -24 2-12 217 160 17.0 12.5

NOTE: Torque tolerance is + 15 -20%.

10-15-3

Service Recommendations/O-Ring Boss Fittings

O-RING BOSS FITTINGS

1. Inspect boss O-ring boss seat. It must be free of dirt and defects. If repeated leaks occur, inspect for defects with a magnifying glass. Some raised defects can be removed with a slip stone.

STRAIGHT FITTING OR SPECIAL NUT TORQUE

Thread Torque

Number

Size N•m lb-ft of Flats

3/8-24 UNF 8 (6) 2 7/16-20 UNF 12 (9) 2 1/2-20 UNF 16 (12) 2 9/16-18 UNF 24 (18) 2 3/4-16 UNF 46 (34) 2 7/8-14 UNF 62 (46) 1-1/2

2. Put hydraulic oil or petroleum jelly on the O-ring (B). Place electrical tape over the threads to protect Oring from nicks. Slide O-ring over the tape and into the groove (A) of fitting. Remove tape.

3. For angle fittings (C), loosen special nut (E) and push special washer (D) against threads so O-ring can be installed into the groove of fitting.

4. Turn fitting into the boss by hand until special washer or washer face (straight fitting) contacts boss face and O-ring is squeezed into its seat.

5. To position angle fittings, turn the fitting counterclockwise a maximum of one turn.

6. Tighten straight fittings to torque value shown on chart. For angle fittings, tighten the special nut to value shown in the chart while holding body of fitting with a wrench.

1-1/16-12 UN 102 (75) 1 1-3/16-12 UN 122 (90) 1 1-5/16-12 UN 142 (105) 3/4 1-5/8-12 UN 190 (140) 3/4 1-7/8-12 UN 217 (160) 1/2

a. Torque tolerance is ± 10 percent. b. To be used if a torque wrench cannot be used. After tightening fitting by hand, put a mark on nut or boss; then tighten special nut or straight fitting the number of flats shown.

10-15-4

Group 20

Fuels, Lubricants, and Coolants

DIESEL FUEL - NORTH AMERICA

In general, diesel fuels are blended to satisfy the low air temperature requirements of the geographical area in which they are sold.

In North America, diesel fuel is usually specified to ASTM D975 and sold as either Grade 1 for cold air temperatures or Grade 2 for warm air temperatures.

If diesel fuels being supplied in your area DO NOT meet any of the above specifications, use diesel fuels with the following equivalent properties:

•Cetane Number 40 (minimum) A cetane number greater than 50 is preferred,

especially for air temperatures below –20°C (–4°F) or elevations above 1500 m (5000 ft).

•Cold Filter Plugging Point (CFPP) The air temperature at which diesel fuel begins to

cloud or jell — at least 5°C (9°F) below the expected low air temperature range.

•Sulfur Content of 0.05% Diesel fuels for highway use in the United States now

require sulfur content to be less than 0.05%. If diesel fuel being used has a sulfur content greater

than 0.05%, reduce the service interval for engine oil and filter by 50%.

Consult your local diesel fuel distributor for properties of the diesel fuel available in your area.

California Proposition 65 Warning: Diesel engine exhaust and some of its elements from this product are known to the State of California to cause cancer, birth defects, or other reproductive harm.

WARNING

DIESEL FUEL LUBRICITY

Diesel fuel must have adequate lubricity to ensure proper operation and durability of fuel injection system components. Fuel lubricity should pass a minimum of 3300 gram load level as measured by the BOCLE scuffing test.

DIESEL FUEL STORAGE

IMPORTANT: DO NOT USE GALVANIZED

CONTAINERS—diesel fuel stored in galvanized containers reacts with zinc coating in the container to form zinc flakes. If fuel contains water, a zinc gel will also form. The gel and flakes will quickly plug fuel filters and damage fuel injectors and fuel pumps.

It is recommended that diesel fuel be stored ONLY in a clean, approved POLYETHYLENE PLASTIC container WITHOUT any metal screen or filter. This will help prevent any accidental sparks from occurring. Store fuel in an area that is well ventilated to prevent possible igniting of fumes by an open flame or spark, this includes any appliance with a pilot light.

IMPORTANT: Keep all dirt, scale, water or other

foreign material out of fuel.

Keep fuel in a safe, protected area and in a clean, properly marked (“DIESEL FUEL”) container. DO NOT use deicers to attempt to remove water from fuel. DO NOT depend on fuel filters to remove water from fuel. It is recommended that a water separator be installed in the storage tank outlet. BE SURE to properly discard unstable or contaminated diesel fuel and/or their containers when necessary.

10-20-1

Fuels, Lubricants, and Coolants/Hydraulic/Transmission Oil

DIESEL FUEL - EUROPE

In general, diesel fuels are blended to satisfy the low air temperature requirements of the geographical area in which they are sold.

In Europe, diesel fuel is usually specified to EN590 and sold in 5 different classes or 6 different grades.

If diesel fuels being supplied in your area DO NOT meet any of the above specifications, use diesel fuels with the following equivalent properties:

•Cetane Number 40 (minimum) A cetane number greater than 50 is preferred,

especially for air temperatures below –20°C (–4°F) or elevations above 1500 m (5000 ft).

If diesel fuel being used has a sulfur content greater than 0.05%, reduce the service interval for engine oil and filter by 50%.

Consult your local diesel fuel distributor for properties of the diesel fuel available in your area.

•Cold Filter Plugging Point (CFPP) The air temperature at which diesel fuel begins to

cloud or jell — at least 5°C (9°F) below the expected low air temperature range.

•Sulfur Content of 0.05% Diesel fuel for highway use in the European Union

will be required to have a sulfur content of less than

0.05% by 1 October 1996. If diesel fuel being used has a sulfur content greater

than 0.05%, reduce the service interval for engine oil and filter by 50%.

Consult your local diesel fuel distributor for properties of the diesel fuel available in your area.

DIESEL FUEL LUBRICITY

DIESEL FUEL STORAGE

IMPORTANT: DO NOT USE GALVANIZED

in an area that is well ventilated to prevent possible igniting of fumes by an open flame or spark, this includes any appliance with a pilot light.

IMPORTANT: Keep all dirt, scale, water or other

foreign material out of fuel.

10-20-2

Fuels, Lubricants, and Coolants/Hydraulic/Transmission Oil

4–CYCLE DIESEL ENGINE OIL - NORTH AMERICA

Use appropriate oil viscosity based on the expected air temperature range during the period between recommended oil changes. Operating outside of these recommended oil air temperature ranges may cause premature engine failure.

The following John Deere oils are PREFERRED:

•PLUS–50®—SAE 15W-40;

•TORQ–GARD SUPREME®—SAE 5W-30. The following John Deere oils are also recommended,

based on their specified temperature range:

•TURF–GARD®—SAE 10W-30;

•PLUS–4®—SAE 10W-30;

•TORQ–GARD SUPREME®—SAE 30. Other oils may be used if above John Deere oils are not

available, provided they meet one of the following specifications:

•SAE 15W-40 (preferred)—API Service Classifications CG–4 or CF–4 or higher;

•SAE 5W-30 (preferred)—API Service Classification CD or CC or higher;

•SAE 10W-30—API Service Classification CF–4 or CF or higher;

•SAE 30—API Service Classification CF–4 or CF or higher.

IMPORTANT: If diesel fuel with sulfur content

greater than 0.5% is used, reduce the service interval for oil and filter by 50%.

SAE 30

SAE 15W-40

SAE10W-30

SAE 5W-30

PREFERRED

AIR TEMPERATURE

M58275

John Deere Dealers: You may want to cross-reference the following publications to recommend the proper oil for your customers:

•Module DX, ENOIL in JDS–G135;

•Section 530, Lubricants & Hydraulics, of the John Deere Merchandise Sales Guide;

•Lubrication Sales Manual PI7032.

10 20 3

10-20-3

Fuels, Lubricants, and Coolants/Hydraulic/Transmission Oil

4–CYCLE DIESEL ENGINE OIL - EUROPE

The following John Deere oils are PREFERRED:

•TORQ–GARD SUPREME®—SAE 15W-40;

•UNI–GARD™—SAE 15W-40;

•TORQ–GARD SUPREME®—SAE 5W-30;

•UNI–GARD™—SAE 5W-30. The following John Deere oils are also recommended,

based on their specified temperature range:

•TORQ–GARD SUPREME®—SAE 10W-30;

•UNI–GARD™—SAE 10W-30;

•TORQ–GARD SUPREME®—SAE 30;

•UNI–GARD™—SAE 30. Other oils may be used if above John Deere oils are not

available, provided they meet one of the following specifications:

•CCMC Specification D5 or Mercedes Benz MB228.3 or higher;

•CCMC Specification D4 or Mercedes Benz MB228.1 or higher .

IMPORTANT: If diesel fuel with sulfur content

greater than 0.5% is used, reduce the service interval for oil and filter by 50%.

SAE 30

SAE 15W-40

SAE10W-30

SAE 5W-30

PREFERRED

AIR TEMPERATURE

M58275

John Deere Dealers: You may want to cross-reference the following publications to recommend the proper oil for your customers:

•Module DX,ENOIL in JDS–G135;

•Section 530, Lubricants & Hydraulics, of the John Deere Merchandise Sales Guide.

10-20-4

Fuels, Lubricants, and Coolants/Hydraulic/Transmission Oil

BREAK–IN DIESEL ENGINE OIL NORTH AMERICA

IMPORT ANT: ONLY use this specified break-in oil in

rebuilt or remanufactured engines for the first 100 hours maximum. DO NOT use PLUS–50®, SAE 15W40 oil or oils meeting specifications API CG–4 or API CF–4, these oils will not allow rebuilt or remanufactured engines to break-in properly.

The following John Deere oil is PREFERRED:

•BREAK–IN ENGINE OIL. John Deere BREAK–IN ENGINE OIL is formulated

with special additives for aluminum and cast iron type engines to allow the power cylinder components (pistons, rings, and liners as well) to “wear-in” while protecting other engine components, valve train and gears, from abnormal wear. Engine rebuild instructions should be followed closely to determine if special requirements are necessary.

John Deere BREAK–IN ENGINE OIL is also recommended for non-John Deere engines, both aluminum and cast iron types.

If this preferred John Deere oil is not available, use a break-in engine oil meeting the following specification during the first 100 hours of operation:

•API Service Classification CE. After the break-in period, use the John Deere oil that is

recommended for this engine.

BREAK-IN OIL

AIR TEMPERATURE

M58275

John Deere Dealers: You may want to cross-reference the following publications to recommend the proper oil for your customers:

•Module DX,ENOIL4 in JDS–G135;

•Section 530, Lubricants & Hydraulics, of the John Deere Merchandise Sales Guide;

•Lubrication Sales Manual PI7032.

10 20

10-20-5

Fuels, Lubricants, and Coolants/Hydraulic/Transmission Oil

BREAK–IN DIESEL ENGINE OIL - EUROPE

IMPORT ANT: ONLY use this specified break-in oil in

rebuilt or remanufactured engines for the first 100 hours maximum. DO NOT use SAE 15W-40 oil or oils meeting CCMC Specification D5—these oils will not allow rebuilt or remanufactured engines to break-in properly.

The following John Deere oil is PREFERRED:

•BREAK–IN ENGINE OIL. John Deere BREAK–IN ENGINE OIL is formulated

John Deere BREAK–IN ENGINE OIL is also recommended for non-John Deere engines, both aluminum and cast iron types.

If above preferred John Deere oil is not available, use a break-in engine oil meeting the following specification during the first 100 hours of operation:

•CCMC Specification D4. After the break-in period, use the John Deere oil that is

recommended for this engine.

BREAK-IN OIL

AIR TEMPERATURE

M58275

John Deere Dealers: You may want to cross-reference the following publications to recommend the proper oil for your customers:

•Module DX, ENOIL4 in JDS–G135;

•Section 530, Lubricants & Hydraulics, of the John Deere Merchandise Sales Guide.

10-20-6

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