John Deere 880 Hydrostatic Drive Windrower Technical Service Manual TM1013

880 Hydrostatic Drive Windrower JOHN DEERE

TECHNICAL MANUAL 880 Hydrostatic Drive Windrower TM 1013 (01 NOV70)

John Deere Ottumwa Works TM1013 (01 NOV70) LITHO IN U.S.A.

ENGLISH

English

880 HYDROSTATIC DRIVE WINDROWER TECHNICAL MANUAL TM-1013 (NOV-70) CONTENTS Section 10 - GENERAL Group 5 - Specifications Group 10 - Tune-Up and Adjustment Group 15 - Lubrication Group 20 - Operator's Cab Section 20 - ENGINE Group 5 - General Information Section 30 - ELECTRICAL SYSTEM Group 5 - Description Group 10 - Wiring Diagrams Section 40 - POWER TRAIN Group 5 - Main Drive Case and Drive Shaft Group 10 - Final Drive Group 15 - Platform Drive Section 50 - STEERING AND BRAKES Group 5 - Steering Group 10 - Brakes Section 60 - HYDRAULIC SYSTEM Group 5 - Components and Tests Group 10 - Reservoir and Filter Group 15 - Control Valves Group 20 - Hydraulic Cylinders Group 25 - Hydrostatic Transmission Section 70 - AIR CONDITIONING Group 5 - General Information Group 10 - Diagnosis and Testing Group 15 - Evacuation and Charging Group 20 - Compressor Group 25 - Condenser, Receiver-Dryer, and Evaporator Group 30 - Regulatory Controls Group 35 - Air Intake System Copyright 1968 DEERE & COMPANY Moline, Illinois All rights reserved "All information, illustrations and specifications contained in this technical 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. " Litho in U.S.A.

Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

2

Use FOS Manuals for Reference

This technical manual is part of a twin concept of service:

Use Technical Manuals for Actual Service

Some features of this technical manual: Table of contents at front of whole manual

• FOS Manuals-for reference Contents at front of each Section Technical Manuals-for actual service. * Specifications at end of each Group The two kinds of manuals work as a team to give you both the general background and technical details of shop service.

Fundamentals of Service (FOS) Manuals cover basic theory of operation, fundamentals of trouble shooting, general maintenance, and basic types of failures and their causes. FOS Manuals are for training new men and for reference by experienced men.

Technical Manuals are concise service guides for a specific machine. Technical Manuals are on-the-job guides containing only the vital information needed by a journeyman mechanic.

When a serviceman should refer to a FOS Manual for more information, a FOS symbol like the one at the left is used in the TM to identify the reference.

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• Special tools at end of each Group

This safety alert symbol identifies important safety messages in this manual. When you see this symbol, be alert to the possibility of personal injury and carefully read the message that follows.

This technical manual was planned and written for you-a journeyman mechanic. Keep it in a permanent binder in the shop where it is handy. Refer to it whenever in doubt about correct service procedures or specifications.

Using the technical manual as a guide will reduce error and costly delay. It will also assure you the best i n finished service work.

Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

General Specifications

10 5-1

Section 10

GENERAL CONTENTS OF THIS SECTION Page

Page

GROUP 5 - SPECIFICATIONS Windrower Dimensions ... . . . . . . . . . . . . . . . . 5-1 Traction Unit ........................... 5-2 Platforms .............................. 5-2 Hay Conditioner ........................ 5-2 Engine................................ 5-3

GROUP 15 - LUBRICATION General Information .................... 15-1 Lubrication Chart ...................... 15-1 Lubricants ............................ 15-1

GROUP 10 - TUNE-UP AND ADJUSTMENT General Information .................... 10-1 Torque Chart.......................... 10-1

GROUP 20 - CAB REMOVAL Removal ............................. 20-1 Specifications ......................... 20-2

Group 5 SPECIFICATIONS

Fig. 1-Windrower Dimensions

WINDROWER DIMENSIONS (Traction Unit with 11.2-24 Tires) Height to top of radiator cap ............. 68 in.

Height to top of steering wheel ........... 90 in.

Height to top of cab ................... 111 in.

Wheelbase ......................... 120 in.

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Overall length ....................... 162 in.

Overall width .......................... 98 in.

Width of cab ......................... 44 in.

Length of cab ........................ 72 in.

Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

Engine General Information

20 5-1

Section 20

ENGINE Group 5 GENERAL INFORMATION For engine information, refer to SM-2080 - John Deere 135, 180, and 202 Power Units - and the windrower operator's manual.

No effort has been made to explain theory of engine operation. If you wish to review basic principles of engines, we recommend the John Deere FOS Manual - ENGINES for this service.

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Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

Electrical System 30 Description 5-1

Section 30

ELECTRICAL SYSTEM CONTENTS OF THIS SECTION Page

Page

GROUP5 - DESCRIPTION General Information ...................... 5-1 Battery ............................... 5-1 Fuse ................................. 5-2 Alternator and Regulator ................. 5-2 Starter................................ 5-4 Lights ................................ 5-4

Specifications .......................... 5-4 GROUP 10 - WIRING DIAGRAMS Wiring Diagrams ........................ 10-1 Lamps, Switches, and Gauges ............ 10-2 Head Lamps and Tail Lamps . . . . . . . . . . . . . 10-2

Group 5 DESCRIPTION GENERAL INFORMATION The John Deere 880 Hydrostatic Drive Windrower i s equipped with a battery, alternator, voltage regulator, starter, and wiring harness. (See Specifications.)

Fos a

Refer to FOS Manual - ELECTRICAL SYSTEMS for additional information and testing precautions.

Certain precautions should be followed when testi ng or servicing the windrower's electrical system to prevent personal injury or damage to the system. A discussion of these follows:

BATTER"' The battery is located on the left-hand side gine compartment.

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Dangers with Batteries To avoid injury from a spark or short circuit, DISCONNECT THE BATTERY-GROUND STRAP when the electrical system or enworking on any part gine. This will also prevent accidental starting.

As a precaution, disconnect battery cables from positive (+) terminals before quick-charging batteri es on the windrower. Failure to do so may burn out the alternator diodes or the regulator.

CAUTION: Gas from battery electrolyte is flammable; keep battery away from all sparks or fires.

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Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

Power Train Main Drive Case and Drive Case and Drive Shaft

40 5-1

Section 40

POWER TRAIN CONTENTS OF THIS SECTION Page

Page

GROUP 5 - MAIN DRIVE CASE AND DRIVE SHAFT General Information ..... '................ 5-2 Diagnosing Malfunctions ................. 5-3 Removal .............................. 5-3 Repair ................................ 5-4 Specifications .......................... 5-6

GROUP 15 - PLATFORM DRIVES General Information .................... 15-1 Diagnosing Malfunctions ................ 15-1 Canvas Drive Gear Case ................. 15-2 Platform Drive Shaft .................... 15-3 Platform Telescoping Drive Shaft .......... 15-4 Cutterbar Drive Case ................... 15-5 Platform Drive Gear Case ................ 15-6 Specifications ......................... 15-8

GROUP 10 - FINAL DRIVE General Information ....................

Diagnosing Malfunctions ................

Removal .............................

Repair ...............................

Specifications .........................

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10-1 10-1 10-2 10-3 10-6

Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

Steering and Brakes Steering

5o 5-1

Section 50

STEERING AND BRAKES CONTENTS OF THIS SECTION Page

Page

GROUP 5 - STEERING General Information ... . ................. 5-1 Diagnosing Malfunctions ................. 5-1 Repair ................................ 5-2 Adjustments ........................... 5-6 Specifications .......................... 5-6

GROUP 10 - BRAKES General information .................... 10-1 Diagnosing Malfunctions ................ 10-1 Adjustments .......................... 10-2 Specifications ......................... 10-2

Group 5 STEERING GENERAL INFORMATION The STEERING LEVERS and STEERING WHEEL, through mechanical linkage, are connected to the piston pump swash plate control pintles of the hydrostatic transmission. By moving the steering levers, the volume of oil and the direction of oil flow within the hydrostatic transmission can be controlled. (See Hydraulics, Section 60.) The hydrostatic transmissions drive the ground wheels.

DIAGNOSING MALFUNCTIONS Machine Tends to Drive to Right or Left Motor swash plates improperly adjusted to each other.

Motor control linkage bent, bound up, or improperly adjusted.

Pump swash plates improperly adjusted to each other.

Pump control linkage improperly adjusted.

Steering levers not parallel to each other in neutral position.

Bent, loose, or improperly adjusted cam foll owers.

Worn or faulty cam.

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E SS7S

12 1 -Ball Joint (2 used) 2-Linkage Rod (2 used) 3-Ball Joint (2 used) 4-Cock Nut (4 used) 5-Washer (4 used) 6-Spring (4 used) 7-Mounting Plate 8-Cap Screw (2 used) Hex. Nut (2 used) 9-Pump Control Arm (2 used) 10-Cap Screw (2 used) Lock Washer (2 used) Hex. Nut (2 used) 11-Friction Strap (2 used) 12-Cap Screw (4 used) 13-Sprring Pin (2 used) 14-Lock Nut (4 used) 15-Jam Nut (2 used) 16-Jam Nut (2 used) Fig. 1-Exploded View of Steering Lever Brake

Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

Hydraulic System Components and Tests

60 5-1

Section 60

HYDRAULIC SYSTEM CONTENTS OF THIS SECTION Page

Page

GROUP 5 - COMPONENTS AND TESTS General Information .... . . . . . . . . . . . . . . 5-1 Testing Hydraulic System ................. 5-4 Diagnosing System Malfunctions ........... 5-5 Specifications .......................... 5-6 Special Tools ........................... 5-6

15-2 Repair............................... 15-2

GROUP 10 - RESERVOIR AND FILTER General Information .................... 10-1 Diagnosing Malfunctions ................ 10-2 Repair ............................... 10-2 GROUP 15 - CONTROL VALVES General Information .................... 15-1

GROUP 20 - HYDRAULIC CYLINDERS General Information .................... 20-1 Diagnosing Malfunctions ................ 20-1 Repair............................... 20-2 20-6 GROUP 25 - HYDROSTATIC TRANSMISSION General Information .................... 25-1 Diagnosing Malfunctions ................ 25-4 Repair ............................... 25-5 Special Tools ......................... 25-14 Specifications ........................ 25-13

Group 5 COMPONENTS AND TESTS GENERAL INFORMATION The John Deere 880 Windrower HYDRAULIC SYSTEM is an open-center type. It consists of a reservoir, control valves, heat exchanger, filter, hydraulic cylinders, and two hydrostatic transmissions.

Oil for the system is contained in a pressurized RESERVOIR. The reservoir has an inspection and cleanout cover, a pressure cap, and an oil level window.

Single-acting CONTROL VALVES, actuated through mechanical linkage, control the movements of the platform. System and circuit relief valves protect components from excess pressure.

The hydraulic CYLINDERS used for platform and reel lift are single acting.

The HEAT EXCHANGER consists of finned tubing.

Oil passing through this tube is cooled by the engine fan.

Each HYDROSTATIC TRANSMISSION contains an i n-line axial PISTON PUMP AND MOTOR. Both are manually controlled, variable displacement, overcenter type. Pump output is routed to the motor through flow paths in a common valve plate. An additional component provided in these packages is an auxiliary CHARGE PUMP of the balanced vane, positive displacement type. The charge pumps supply necessary oil for the closed circuit within the hydrostatic transmissions and meet the demand for oil for the auxiliary system usage. High pressure relief valves regulate the pressure in both sides of the transmission circuit.

Hydraulic system FILTERING is accomplished by a rnicronic filter element.

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Windrower, Hydrostatic Drive - 880 TM-1013 (Nov-70)

Air Conditioning General Information

70 5-1

Section 70

AIR CONDITIONING CONTENTS OF THIS SECTION Page

Page

GROUP 5 - GENERAL INFORMATION System Cycle .......................... 5-2 Refrigeration System .................... 5-3 Specifications .......................... 5-5

Evaporator ........................... 25-3 General Information .................. 25-3 Removal ........................... 25-3 Repair ............................. 25-4 I nstallation ......................... 25-4 Specifications ......................... 25-4 Hose and Tubing Connection Torques ...... 25-4

GROUP 10 - DIAGNOSIS AND TESTING Preliminary Check ..................... 10-1 Diagnosing Malfunctions ................ 10-1 Electrical Test ......................... 10-3 Wiring Diagram ........................ 10-4 GROUP 15 - EVACUATION AND CHARGING Safety Precautions ..................... 15-1 Pressure Gauges ...................... 15-1 Discharging the System ................. 15-3 Evacuating the System .................. 15-3 Charging the System .................... 15-3 Leak Testing .......................... 15-3 Specifications ......................... 15-4 Special Tools .......................... 15-4 GROUP 20 - COMPRESSOR General Information .................... 20-1 Removal ............................. 20-2 Repair ............................... 20-2 Removal of Magnetic Clutch .............. 20-2 Checking and Adding Compressor Oil ...... 20-3 I nstallation ........................... 20-3 Specifications ......................... 20-4 Torques for Hardware ................... 20-4 Special Tools .......................... 20-4 GROUP 25 - CONDENSER, RECEIVER-DRYER, AND EVAPORATOR Condenser............................ 25-1 General Information .................. 25-1 Removal ........................... 25-1 Repair............................. 25-2 I nstallation . . . . . . . . . . . . . . . . . . . . . . . . . 25-2 Receiver-Dryer........................ 25-2 General Information .................. 25-2 Removal ........................... 25-2 Installation ......................... 25-3

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GROUP 30 - REGULATORY CONTROLS Expansion Valve ....................... 30-1 General Information .................. 30-1 Removal ........................... 30-2 Repair............................. 30-2 I nstallation ......................... 30-2 Thermostatic Temperature Control Switch ... 30-3 General Information .................. 30-3 Removal ........................... 30-3 Repair............................. 30-3 I nstallation ......................... 30-4 Overheat Thermostat ................... 30-4 General Information .................. 30-4 Removal ........................... 30-4 Repair............................. 30-4 I nstallation ......................... 30-4 Specifications ......................... 30-5 GROUP 35 - AIR INTAKE SYSTEM Pressurized Blowers .................... 35-1 General Information .................. 35-1 Removal ........................... 35-1 Repair............................. 35-1 I nstallation ......................... 35-1 Air Filters ............................ 35-2 General Information .................. 35-2 Removal ........................... 35-2 Service ............................ 35-2 I nstallation ......................... 35-2 Specifications ......................... 35-2