Part of the John Deere Repair Manuals.
Every one of the 296 pages in this John Deere JD760 Series-A Technical Manual PDF (OEM TM-1018) is aimed at one machine: your JD760 scraper, from the power shift transmission to the elevator gearbox. Open to full electrical diagrams for the charging, starting, and lighting circuits, plus hydraulic schematics covering the pump, power steering, and power brakes. You also get page after page of exploded views, a fuel system diagnosis section, and factory tune-up procedures. Retighten the cylinder head cap screws to 180 ft-lbs in sequence, set intake valve clearance at 0.018 in. and exhaust at 0.028 in., and expect 425 psi on a healthy cylinder. Forum threads won't rebuild a power shift transmission. This bookmarked PDF opens on any device; load it on your tablet, walk out to the machine, and start wrenching.
What's Inside This John Deere JD760 Series-A Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 7-32 | Specifications, Predelivery, Delivery, And After-Sales Services, Tune-Up and Adjustment |
| Engine | 33-62 | Basic Engine, Lubrication System, Cooling System, Speed Control Linkage |
| Fuel System | 63-74 | Diagnosing Malfunctions, Fuel Tank, Transfer Pump and Filters, Air Intake System, Fuel Injection Pump |
| Electrical System | 75-128 | Information and Diagrams, Charging Circuit, Starting Circuit, Lighting and Accessory Circuits |
| Power Train | 129-184 | Transmission Disconnect Clutch, Power Shift Transmission, Differential, Final Drives, Reversible Power Take-Off |
| Steering and Brakes | 185-186 | Steering Valve, Steering Cylinders, Brake Valve, Brake Selector Valve, Brake Accumulator, Emergency Brake Cylinder |
| Hydraulic System | 187-254 | General Information, Diagnosis and Testing, Filters, Valves, Oil Cooler and Accumulators, Hydraulic Pump, Power Steering, Power Brakes |
| Miscellaneous | 255-296 | Elevator, Drive Shafts, Draft Frame Gearbox, Elevator Gearbox, Wheels and Axle Assemblies, Bowl Components, Seat Assembly, Cab Pressurizer |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Retighten cylinder head cap screws | 180 ft-lbs | p. 17 |
| Check valve clearance (Intake) | 0.018 in. | p. 17 |
| Check valve clearance (Exhaust) | 0.028 in. | p. 17 |
| Cylinder Compression | 425 psi | p. 17 |
| Intake Valve Clearance | 0.0180 inch | p. 38 |
| Exhaust Valve Clearance | 0.0280 inch | p. 38 |
| Transmission Pump Capacity | 12.5 gpm | p. 194 |
John Deere JD760 Series-A Common Problems This Manual Covers
John Deere JD760 Series-A engine cranks but won't start after winter storage, fuel not reaching injection pump
Drain condensation from the fuel tank and refill with fresh fuel; a part-full tank sweats overnight and freezes the lines. Check the transfer pump and filters using the fuel system procedures starting on page 63, then bleed the injection lines. If cranking still sounds weak, verify compression at 425 psi minimum per cylinder, spec on page 17.
Manual Section: Fuel System p. 63Engine runs hot and loses power under load even after radiator cleaning
Clean the rotary screen, oil cooler, and radiator cores before condemning the water pump; restricted airflow mimics internal problems. If power loss continues after cleaning, check valve clearance: set intake valves to 0.0180 inch and exhaust valves to 0.0280 inch following the procedure on page 38, then confirm each cylinder holds 425 psi minimum compression.
Manual Section: Cooling System Malfunctions p. 38Battery goes dead overnight and charge indicator lamp flickers at working RPM
Check alternator belt tension first: you want 1 inch of deflection with 20 in-lbs of force applied midway between pulleys, spec on page 18. Replace glazed or cracked belts, then load-test the battery and trace the charging circuit against the wiring diagram. Clean and tighten ground connections before blaming the regulator.
Manual Section: Charging Circuit Diagnosis p. 18Bowl and apron hydraulics respond slowly, oil overheats after an hour of work
Check hydraulic oil level and change the filters before tearing into the valves. Test pump output next: the transmission pump should deliver 12.5 gpm at 165 to 185 psi at 1900 rpm, spec on page 194. Low flow with hot oil points to a worn pump or plugged oil cooler; also inspect control valve O-rings for extrusion.
Manual Section: Hydraulic System p. 187Front tires scallop and wear unevenly, steering wanders on the haul road
Check front wheel bearing adjustment: torque the adjusting nut to 35 ft-lbs while rotating the wheel, then loosen to the nearest cotter pin hole and repack with clean grease. Measure toe-in next; the fronts should run 1/8 to 3/8 inch less than the rears, both specs on page 18. Inspect tie rod ends for slop while you're under there.
Manual Section: Miscellaneous p. 255Frequently Asked Questions
What are the torque specifications for the cylinder head bolts on the JD760 Series-A?
The cylinder head-to-block bolts should be tightened to 175 to 185 ft-lbs. If a new cylinder head gasket is used, a two-stage torque sequence is required: first 100 ft-lbs, then 180 ft-lbs. p. 49
What is the correct valve clearance for the intake and exhaust valves?
The intake valve clearance is 0.0180 inch and the exhaust valve clearance is 0.0280 inch. p. 47
What is the engine crankcase oil capacity including the filter?
The engine crankcase oil capacity is 20 U.S. quarts, which includes the filter. p. 19
What is the specified alternator belt tension?
The alternator belt should have 1-inch of belt deflection when 20 pounds of force is applied. p. 50
What is the procedure for bleeding the tractor brakes?
Start the engine and loosen the bleed screw on each rear axle housing two turns. Tighten the lock nuts, depress the brake pedals for 2 minutes, then loosen the bleed screws again to release air, and finally tighten the lock nuts. p. 239
Will this John Deere JD760 Series-A Technical Manual download right away?
You download the Technical Manual yourself: 296 pages, scanned PDF, available immediately. Keep a copy on every device you use.
Can I print specific sections of this John Deere JD760 Series-A manual?
Yes. No DRM, nothing blocks printing, so run off the pages you need on whatever printer you have.
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