John Deere 316, 318 & 420 Lawn and Garden Tractors Service Manual
Diagnostic procedures and component service for John Deere 316, 318, and 420 lawn and garden tractors with detailed troubleshooting, repair, and maintenance information. Ref: TM1590
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Models Covered & Key Technical Specifications
John Deere 316, 318 & 420 Lawn and Garden Tractors Service Manual
John Deere 316, 318 & 420 Tractors (1981-1993) Service Manual | Comprehensive Service Handbook.
- Authorized Assembly Torques: 70 N·m (52 lb-ft) is calibrated to the charge pump mounting.
- Critical Liquid Volume: For transmission refill, 7.1 L (15 U.S. pt) establishes the capacity.
- Operational Temperature Range: For optimal hydraulics, 43 C (110 F) defines the operating limit.
- Established Play Limits: The formatter board requires 0.08 mm (0.003 in.) for optimal performance.
- Measured Fastener Specs: For the differential lock, 53 N·m (39 lb-ft) is specified as standard.
- Maximum Fastener Specs: For the front axle, 140 N·m (103 lb-ft) defines the required torque.
Professional Workshop Service Manual & Technical Specifications
John Deere 316, 318 & 420 Lawn and Garden Tractors Service Manual: Comprehensive Service Handbook: John Deere 316, 318 & 420 Tractors (1981-1991; 1983-1992; 1985-1993) Technical-Briefing
Year-Coverage: 1981-1993 // Asset-ID: TM1590 // Year-Coverage: 1981-1993
| Component | Parameters | Architecture |
|---|---|---|
| Steering | Manual / Power Hydrostatic | Standard |
| Engine | Onan Gasoline | Air Cooled |
| Transmission | Hydrostatic | Grease Lubricated |
Providing a structural breakdown of the necessary systems and procedures for maintaining your John Deere tractor. This manual covers engine specifications, power train, steering, brakes, hydraulics, and safety information.
The troubleshooting chapter addresses potential issues with engine and electrical systems.
Cooling system maintenance is addressed in the transmission and hydraulic sections.
Testing requirements are specified for the drive shaft and PTO clutch assemblies.
Clearance measurements are addressed for the steering gearbox and differential components.
Special procedures are addressed for brake adjustments and park brake linkage.
This manual documents torque specifications for various components to ensure proper flange face sealing and reliable operation.
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