John Deere 300 Loader and Backhoe Loader Repair Technical Manual (TM1068)

Table of Content
Section 10 – GENERAL
Group 5 Specifications
Group 10 Predelivery, Delivery, and After-Sales Services
Group 15 Tune-up
Group 20 Lubrication
Group 25 Separation
Group 30 Specifications and Special Tools
Section 20 – ENGINE
Group 5 Diagnosis
Group 10 Basic Engine
Group 15 Lubrication System
Group 20 Governor and Speed Control Linkage
Group 25 Cooling System
Group 30 Specifications and Special Tools
Section 30 – FUEL SYSTEM
Group 5 Diagnosis
Group 10 Fuel Tank, Transfer Pump, and Filters
Group 15 Air Intake System
Group 20 Carburetor
Group 25 Fuel Injection Pump
Fuel Injection Nozzles (see SM-2045)
Group 30 Specifications and Special Tools
Section 40 – ELECTRICAL SYSTEM
Group 5 Information and Diagrams
Group 10 Charging Circuit
Group 15 Starting Circuit
Group 20 Ignition Circuit
Group 25 Lighting and Accessory Circuit
Group 30 Specifications and Special Tools
Section 50 POWER TRAIN
Group 5 Diagnosis
Group 10 Clutch Assembly
Group 15 Transmission
Group 20 Reverser
Group 25 Continuous Running PTO
Group 30 Independent PTO
Group 35 Differential
Group 40 Final Drives
Group 45 Specifications and Special Tools
Section 60 – STEERING AND BRAKES
Group 5 Hydraulic Brakes
Group 10 Power Steering System
Group 15 Specifications and Special Tools
Section 70 – HYDRAULIC SYSTEM
Group 5 General Information, Testing, and Diagnosis
Group 10 Hydraulic Pump
Group 15 Hydraulic Components
Group 20 Rockshaft System
Group 25 Selective Control Valve
Group 30 Loader Control Valve
Group 35 Backhoe Control Valve
Group 40 Hydraulic Cylinders
Group 45 Specifications and Special Jools
Section 80 MISCELLANEOUS COMPONENTS
Group 5 Front End Support and Axle Assembly
Group 10 Loader Frame, Boom, and Bucket
Group 15 Backhoe Frame, Boom and Bucket
Group 20 Specifications and Special Tools
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 and 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.
Some features of this technical manual:
• Table of contents at front of manual
• Exploded views showing parts relationship
• Photos showing service techniques
• Specifications grouped for easy reference
This 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.