1988-1990 John Deere RX63, RX73, TX75, SX75, RX95, SX95 Riding Mowers Workshop Manual (P/N TM1391)
John Deere Models Covered & Key Technical Specifications
Models: John Deere RX63, John Deere RX73, John Deere TX75, John Deere SX75, John Deere RX95, John Deere SX95
Sub-models / Variants: 6 hp, 9 hp, 12.5 hp, SX Series Riders
Model Years: 1988–1990
Technical Data:
- Engine sheave mounting cap screw torque: 73 ± 13 N·m (54 ± 10 lb-ft)
- Engine mounting cap screw torque: 19 ± 2 N·m (14 ± 5 lb-ft)
- Spark plug gap: 0.76 mm (0.030 in.)
- Spark plug torque: 9–20 N·m (80–180 lb-in.)
- Idle speed: 1550 ± 75 rpm
- Wide open throttle (no load) speed: 3350 ± 75 rpm
- Fuel pump output (12.5 hp): 0.09 L (0.2 pt) in 15 seconds at 3000 rpm
- Mower spindle sheave locknut torque: 140 N·m (103 lb-ft)
- Brake pedal free play: 19 mm (1-1/4 in.)
- Brake pad thickness (minimum): 6 mm (1/4 in.)
- Transaxle cover cap screw torque: 10 N·m (95 lb-in.)
- Tie rod attaching nut torque: 25–30 N·m (18.5–22 lb-ft)
John Deere Manual Features & Content Preview
- Covers 1988–1990 John Deere RX63, RX73, TX75, SX75, RX95, and SX95 riding mowers, including 6 hp, 9 hp, and 12.5 hp engine variants
- Official John Deere publication TM1391, revised edition dated April 1990
- Contains 168 pages of primary reference data, including 64 detailed service illustrations, torque specification tables, and component-specific maintenance diagrams
Technical Coverage and Maintenance Structure
The TM1391 workshop manual focuses on factory-authorized repair procedures, component testing, and system diagnostics for the late-80s riding mower lineup. The document is segmented into eight primary sections. These cover safety specifications, engine removal and installation, fuel and air system layouts, power train maintenance, steering, and brakes. You will also find miscellaneous teardown details for mower deck and spindle overhauls. The guide provides specialized data for the variator system, highlighting primary and secondary belt routing alongside variable speed control linkage adjustments. Please note that internal engine rebuilds require the supplementary CTM-5 manual.
Specification Highlights
Getting the setup right requires exact factory values. Brake pad thickness across the RX63 through SX95 series must maintain a minimum of 6 mm to meet factory standards. The engine data section specifies sheave mounting cap screw torque at 73 ± 13 N·m, while transaxle cover cap screws require 10 N·m during assembly. Properly applying this technical depth ensures reliable equipment performance. Always prioritize workshop safety and consult a certified technician before performing major service procedures on this equipment.
Customer Reviews
Read what our customers say about this John Deere Mower manual and share your own experience.