John Deere 316, 318 & 420 Lawn and Garden Tractors Service Manual

Technical Scope of the 1981–1993 John Deere 316, 318 & 420 Tractor Manual

• Covers 1981–1993 John Deere 316, 318, and 420 lawn and garden tractors, documenting specialized hydrostatic transmission, axle, and differential configurations for each variant
• Official John Deere publication TM1590, published May 17, 1995
• Contains 47 exploded-view diagrams and 35 technical specification tables
• Delivered as a direct download the moment payment clears
• Indexed PDF search covers every chapter and appendix
• This 660-page reference is the complete OEM-authorized document for the 316, 318, and 420 series, providing the final word on service and diagnostic adjustments

Document Structure and Technical Reference

This John Deere 316, 318 & 420 service publication provides detailed technical information for the internal mechanical systems of these machines. The document content is organized by functional area, starting with safety procedures and general machine specifications. Sections cover engine repair, front PTO clutch maintenance, power train assembly, steering and brake adjustment, hydraulic control valve operation, and differential service. The how factory workshop documentation is structured allows for systematic navigation of electrical schematics, component locations, and power train diagnostic tests for the infinite-speed hydrostatic drive systems.

Specifications and Technical Preview

Engine repair specifications are cross-referenced to CTM2, while machine-specific hydraulic and electrical values are contained within this publication. Charge pump mounting torque is listed at 70 N·m (52 lb-ft) in the power train repair section. Differential lock torque values are documented at 53 N·m (39 lb-ft). Front axle fastener torque is specified at 140 N·m (103 lb-ft) in the miscellaneous specifications. The manual also details hydraulic system pressure settings, providing 5861–6722 kPa (850–975 psi) for the implement relief valve. Transmission capacity is documented at 7.1 L (15 U.S. pt) for models 318 and 420. The steering system leakage test requires 6.8 N·m (60 lb-in.) of torque applied to the steering wheel nut at slow idle. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This 660-page John Deere OEM workshop manual covers the 1981–1993 316, 318, and 420, documenting chassis, power train, hydraulic, and electrical specifications for these lawn and garden tractors.

Document Reference: TM1590 (17MAY95)