John Deere 18-Speed PST Repair Technical Manual (CTM168)

John Deere 18-Speed PST Repair Technical Manual (CTM168 10DEC07)

This technical manual provides detailed service, repair, and troubleshooting procedures for the John Deere 18-Speed PowerShift Transmission (PST). It includes hydraulic system maintenance, gear train adjustments, clutch assembly procedures, and electronic control diagnostics to ensure peak transmission performance.

File Format: PDF

Size: 14.94 MB

No. of pages: 274

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

📑 Table of Contents Overview:

General Information

• Transmission identification and serial number plate
• Safety guidelines for fluid handling and high-pressure systems
• Recommended lubricants and oil storage best practices
• Transmission maintenance intervals and storage recommendations

Transmission Repair and Adjustments

• Transmission mounting and removal procedures
• Input and output shaft seal replacements
• Yoke removal and installation
• Transmission bearing retainer O-ring servicing

Electrical System

• Transmission wiring harness removal and installation
• Proportional solenoid valve diagnostics and servicing
• Speed and temperature sensor replacements
• Oil pressure switch troubleshooting

Hydraulic System

• Oil filter and suction screen maintenance
• Oil pump removal, disassembly, and reinstallation
• Main regulator valve and bypass valve servicing
• Oil level sight glass replacement (for wheel tractors)

Geartrain and Clutch Shafts

• Clutch shaft assembly disassembly and reassembly
• Exploded views of input and output shaft components
• Rear housing with internal park brake removal
• Clutch bearing adjustments and installation

Theory of Operation

• Gear selection and clutch actuation principles
• Directional and speed clutch operation
• Hydraulic system flow diagrams and pressure regulation
• Proportional solenoid valve operation

Tools and Specifications

• Essential and dealer-fabricated tools for transmission servicing
• Torque values for bolts, screws, and hydraulic fittings
• Metric and unified inch specifications for fasteners

This John Deere 18-Speed PST Repair Technical Manual is an essential resource for mechanics, service technicians, and equipment owners, providing detailed diagnostics, repair instructions, and maintenance procedures to ensure the efficient operation of PowerShift transmissions.