John Deere 770A / 770AH / 772A / 772AH Motor Graders Service Manual
Covers JD770A, 770AH, 772A, and 772AH Motor Graders. Includes detailed procedures for engine, transmission, hydraulic systems, and axles. Ref: TM-1361
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Models Covered & Key Technical Specifications
John Deere Motor Graders (TM-1361)
John Deere Technical Manual for 770A, 770AH, 772A, and 772AH Motor Graders (1987 Edition) | Operator's Manual
- Prescribed Reservoir Specs: 38 Liters is the standard fluid capacity for cooling systems.
- Standard Displacement Data: 7.638 L signifies the engine's total piston displacement Architecture.
- Core Dimensional Tolerance: 14.9 to 1 -- establishes the compression ratio Norms.
- Rated Climate Parameters: 3050 m signifies the maximum operational altitude Bounds.
- Calibrated Physical Specs: 160 hp (119 kW) signifies the gross engine power Topology.
- Nominal Fluid Capacity: 70 gal. achieves the fuel tank capacity Matrix.
Professional Workshop Service Manual & Technical Specifications
John Deere Motor Grader (TM-1361) - Comprehensive Service & Repair Manual
Engine-Type: Turbocharged, Intercooled Diesel // Repair-Classification: Shop Training Manual // Technical-Scope: Complete Overhaul & Repair Procedures
| Assessment-Parameter | Technical-Path | Calibration-Spec |
|---|---|---|
| Engine Specifications | General Information | 466 cu. in. (7.638 L) |
| Torque Ratings | Maximum Torque | 465 lb-ft (630 Nm) |
| Transmission Details | Type | Direct drive full Power Shift |
| Drive System | Front Drive Type | Hydrostatic (Optional) |
| Blade Specifications | Width | 12 ft. (3.66 m) |
| Capacities | Fuel Tank | 70 gal. |
Featuring a modular arrangement of clear, step-by-step instructions, this manual provides comprehensive coverage for the John Deere 770A, 770AH, 772A, and 772AH Motor Graders. It details system operations, component identification, and repair procedures necessary for maintaining peak performance.
Drivetrain specifications are addressed in Section 3, detailing the Transmission, Gears, Shafts, Bearings, and Power Shift Clutch.
Reassembly procedures are specified for each major component, including the Final Drive Housing and Tandem Assemblies.
Service intervals are documented for all major systems, ensuring optimal longevity and performance.
Component locations are identified for easy access and efficient servicing.
Service procedures are documented for the Front Axle, including wheel lean and oscillation mechanisms.
This manual documents torque specifications for critical fasteners to ensure proper seal compression uniformity.
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