TM1551 John Deere 7200 and 7400 2WD or MFWD Tractors Repair Technical Manual

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John Deere Agriculture

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Table of contents

FOREWORD

DEALER PREDELIVERY SERVICE

QUICK REFERENCE SPECIFICATIONS

Section 05 - SAFETY

Group 05 - Safety

Section 10 - GENERAL INFORMATION

Group 05 - General Information

Section 20 - ENGINE

Group 00 - Component Removal and Installation

Group 05 - Engine Repair

Section 30 - FUEL, AIR INTAKE, AND COOLING SYSTEMS

Group 05 - Throttle Controls

Group 10 - Diesel Fuel System

Group 15 - Air Intake System

Group 20 - Engine Cooling System

Group 25 - Air Conditioning Condenser and Coolers

Section 40 - ELECTRICAL

Group 05 - Connectors

Group 10 - Wiring Harness Routing

Group 15 - Charging Circuit

Group 20 - Starting Circuit

Group 25 - Switches, Relays, and Solenoids

Group 30 - Monitoring System

Group 40 - Auxiliary Lighting and Electrical Components

Group 45 - Convenience and Accessory Components

Section 50 - TRANSMISSION

Group 00 - Component Removal and Installation

Group 05 - Controls

Group 10 - SyncroPlus SyncroPlus is a trademark of Deere & Company.Transmission

Group 15 - PowrQuad PowrQuad is a trademark of Deere & Company. Transmission

Group 20 - Creeper Transmission

Group 25 - Range Box

Section 56 - DRIVE SYSTEMS

Group 00 - Component Removal and Installation

Group 05 - Controls

Group 10 - MFWD Clutch

Group 15 - MFWD Axle

Group 20 - Rear Di erential

Group 25 - Final Drive

Group 30 - Hi-Crop Final Drive

Group 35 - PTO

Group 40 - Drive Lines

Group 45 - Hydraulic Pump Drive

Section 60 - STEERING AND BRAKES

Group 05 - Hydrostatic Steering

Group 10 - Steering Cylinders

Group 15 - Brake Valve

Group 20 - Brake Components

Section 70 - HYDRAULICS

Group 00 - Component Removal and Installation

Group 05 - Controls

Group 10 - Hydraulic Pump and Charge Pump

Group 15 - Hydraulic System Valves

Group 20 - Selective Control Valves and Couplers

Group 25 - Hitch

Group 30 - Row Guidance

Group 35 - Remote Cylinder

Group 40 - Bleed Hydraulic System

Section 80 - MISCELLANEOUS

Group 00 - Component Removal and Installation

Group 05 - Front Axle

Group 10 - Hood

Section 90 - OPERATOR STATION

Group 00 - Component Removal and Installation

Group 05 - Controls

Group 10 - Air Conditioning System

Group 15 - Heating System

Group 20 - Seat

Group 25 - ROPS and Cab

Section 99 - DEALER FABRICATED TOOLS

Group 05 - Fabricated Tools

Foreword

This manual is written for an experienced technician. Essential tools required in performing certain service work are identi ed 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, speci cations, 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 Manual-Reference

Technical Manuals-Machine Service

Component Manual-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 speci c 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 speci c components. Component technical manuals are written as stand-alone manuals covering multiple machine applications.

Dealer Predelivery Service

The John Deere delivery receipt, when properly lled out and signed by the dealer and customer, veri es predelivery and delivery services were satisfactorily performed. When delivering the tractor, give the customer his copy of the delivery receipt and operators manual. Be sure to explain their purposes to him.

Because of the shipping factors involved, plus extra nishing touches necessary to promote customer satisfaction, there are certain predelivery services that must be performed by the dealer. These services are listed in the rst of two sections on the predelivery form which is attached to the tractor. The second section is a list of factory inspections that must be veri ed by the dealer.

Fill the form out completely and sign it. Send a copy to the factory and le the original with the shop order for the job. This will certify the proper delivery service has been completed.

Perform all services listed and check each job o as it is completed.

Quick Reference Speci cations

Engine

Slow Idle ..........

Fast Idle ..........

Rated Engine Speed ..........

Valve Clearance:

Intake:

Exhaust:

Capacities

Fuel tank: Open Station ..........

Station (Optional) ..........

Cooling system ..........

Crankcase with Filter ..........

Transmission, Di erential and Hydraulic system: SyncroPlus

SyncroPlus with MFWD .......... SyncroPlus with Creeper

.......... SyncroPlus with MFWD and Creeper ..........

PowrQuad

PowrQuad with MFWD ..........

PowrQuad with Creeper ..........

PowrQuad with MFWD and Creeper

Mechanical Front Wheel Drive: Axle Housing: .......... Wheel Hub .......... Hi-Crop Axle Housings (combined) ..........

Torques

Front Axle: Regular or Wide Axle ..........

Two-Wheel Drive: Front Wheel-to-Hub ..........

Hi-Crop Rim-to-Disk .......... Hi-Crop Disk-to-Hub ..........

MFWD: Rim-to-Disk ..........

Hi-Crop Rim-to-Disk .......... Disk-to-Hub .......... Hi-Crop Disk-to-Hub ..........

Cab Mounting Bolts ..........

rpm

rpm

rpm

L (19 qt)

600 N·m (445 lb-ft)

310 N·m (230 lb-ft)

310 N·m (230 lb-ft)

310 N·m (230 lb-ft)

310 N·m (230 lb-ft)

600 N·m (445 lb-ft)

600 N·m (445 lb-ft)

600 N·m (445 lb-ft)

204 N·m (150 lb-ft)

L (16 gal) 68 L (18 gal)

L (9 qt)

L (2 qt)

L (2 gal)

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