Overview
The John Deere JD400 tractor repair service manual provides a technical reference for the covered equipment. Its purpose is to help locate information relevant to inspection, troubleshooting, servicing and repair, as applicable to the supplied publication.
The documented contents outline identifies description and specifications, tractor separation, periodic lubrication and engine tune- up and tractor adjustment. The table below lists selected source-supported subjects; consult the publication for exact service procedures and specifications.
Table of Contents
John Deere JD400 Manual
Main sections and selected subjects identified in the source documentation:
- Description and Specifications
- Tractor Separation
- Periodic Lubrication
- Engine Tune- Up and Tractor Adjustment
- Basic Engine
- Engine Lubrication System
- Governor and Speed Control Linkage
- Engine Cooling System
- Fuel Systems
- Electrical System
- Engine and PTO Clutches
- Transmission and Differential
- Continuous-Running PTO
- Transmission-Driven PTO
- Independent PTO
- Reverser
- Final Drive System
- Hydraulic Brakes
- Manual Steering
- Power Steering (Open Center Type)
- Power Steering (Closed Center Type)
- Front Axles, Front End Support, and Steering Linkage
- Seats
- Hydraulic System
- Hydraulic Pumps
- Rockshaft and 3-Point Hitch
- ·Remote Cylinder Selective Control Valve (Early Tractors)
- Selective Control Valve {Balanced Poppet Type) (Later Tractors)
- Hose Couplers and Remote Cylinders
- Wheels, Tires, and Weights
- Trouble Shooting
Using the Technical Reference
Use the identified sections to locate relevant information, and follow any model-specific instructions, limits and precautions in the original documentation.










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