John Deere JD570 & JD570A Motor Grader Comprehensive Technical Manual (TM-1001) – 610 Pages | OEM Specs

John Deere JD570 and JD570A Motor Grader Technical Manual - Dec-1987 Edition

This professional-grade factory service manual provides the definitive technical foundation required to maintain peak uptime and structural integrity for JD570 series graders. By utilizing original OEM diagnostic procedures, technicians can eliminate the risks of catastrophic component failure and ensure that every repair meets the high-performance standards established by John Deere engineering. This specific 1987 revision is the vital authority for these models, containing the finalized technical specifications and updated torque sequences developed over the machine's production lifecycle.

Comprehensive Configuration & Serial Mapping

This manual provides exhaustive coverage for both the JD570 and JD570A series, specifically accounting for critical mid-generation engineering changes. It includes technical data for:

• Model JD570: Units from initial production through serial number -001699 and later units 001700-.
• Model JD570-A: Comprehensive coverage for all variations including Engine Serial No. -730705 and 730706-.
• Powerplant Entities: Deep-dive data for the John Deere 303 Cu. In. Diesel and the high-output 329 Cu. In. Turbocharged Diesel (6-329D).
• Fuel Systems: Full calibration details for Roosa Master Model C, CB, and JDB injection pumps.

Technical ROI: Beyond Generic Repair Advice

• Precision Calibration: Avoid the "parts-cannon" approach by following circuit-by-circuit analyzer tests for the closed-center hydraulic system.
• Downtime Prevention: Step-by-step separation procedures for the Power Shift transmission ensure complex internal repairs are done once and done correctly.
• Safety Integrity: Factory-spec brake valve and steering valve overhaul instructions that guarantee operator safety under heavy load conditions.

Document Metadata

• Print Number: TM-1001
• Total Pages: 610+ Pages
• Document Format: High-Resolution Searchable PDF

Logic-Based Diagnostics & System Troubleshooting

The manual utilizes a "Symptoms-to-Solution" diagnostic logic, moving beyond simple parts replacement to true system analysis. It guides the technician through the complex interplay of the engine speed control linkage, the 8-speed Power Shift transmission logic, and the hydraulic accumulator system. By following the systematic analyzer tests (Section 30/70), users can isolate pressure drops or mechanical drag before they lead to expensive secondary failures in the final drive or tandem housings.

Engineering Schematics & Visual Reference

TM-1001 features high-fidelity engineering illustrations and fold-out style schematics. These include clear depictions of the variable displacement piston pump internals, valve-in-head engine architecture, and the complex hydraulic routing for the moldboard and circle functions. These visuals allow for precise identification of shim placements, seal orientations, and wiring paths that are often omitted in aftermarket manuals.

Professional Table of Contents

• Section 10: General (Specifications, Tune-up, Lubrication)
• Section 20: Engine (Basic Engine, Cooling, Lubrication, Speed Control)
• Section 30: Fuel System (Roosa Master Pump Diagnostics and Repair)
• Section 40: Electrical System (Charging, Starting, Wiring Logic)
• Section 50: Power Train (Power Shift Transmission, Transfer Drive, Differentials)
• Section 60: Brakes (Valve, Cylinders, and Parking Brake Assemblies)
• Section 70: Hydraulic System (System Testing, Control Valves, Pumps)
• Section 80: External Equipment (Main Frame, Front Axle, Scarifier, Bulldozer)

Vital Maintenance Benchmarks

FAQ

Does this manual cover both the JD570 and the JD570A engine variations? Yes, this technical manual provides exhaustive coverage for both models, including the 303 Cu. In. Diesel and the later 329 Cu. In. Turbocharged Diesel engines. It explicitly accounts for engineering changes across serial number breaks, such as the transition at Engine Serial No. 730706, ensuring you have the correct valve-in-head specifications to prevent timing errors or internal component interference during a rebuild.

What is the specific torque requirement for the main frame and mounted equipment? For structural integrity and operator safety, the manual specifies a torque of 300 lb-ft for both the bulldozer-to-main frame and scarifier-to-main frame mounting bolts. Adhering to this exact value is critical for preventing bolt fatigue and frame cracking during high-impact grading operations, ensuring the machine remains rigid under maximum drawbar pull.

How does the manual assist with troubleshooting the closed-center hydraulic system? The manual features a dedicated Section 70 that focuses on "System Testing (Analyzer)" to diagnose the variable displacement piston pump and control valves. By using the factory-specified operating pressure of 2000 psi as your benchmark, you can accurately identify internal leakage or pump wear, which prevents systemic overheating and avoids the unnecessary replacement of expensive hydraulic cylinders.

What specialized procedures are required for the Power Shift transmission service? This guide provides the complete technical logic for the 8-speed Power Shift system, including the critical separation procedures for transmission serial numbers before and after 002322. It details the exact shim adjustments and clutch housing tolerances, such as the 100 lb-ft torque for the engine frame-to-main frame lower pivot pin, which is vital for maintaining drivetrain alignment and preventing premature gear wear.

How do the high-resolution schematics improve shop-floor repair efficiency? The digital manual provides crystal-clear, zoomable schematics for the Roosa Master Model JDB and CB fuel injection pumps and the complex 24V electrical system. This allows for precise identification of small components and wire paths—such as the 0.020 to 0.080 inch circle-to-support clearance—ensuring that even the most minute adjustments are visible and accurate, which eliminates guesswork and reduces the risk of costly re-work.