Part of the John Deere Repair Manuals.
A hydrostatic drive that whines under load or a loader valve that bleeds off lift pressure will park a 70 in a hurry, and this John Deere 70 technical manual PDF, factory publication TM1072 for the 70 Skid-Steer Loader, gives you 174 pages of the data that fixes it. Wiring diagrams trace the charging, ignition and starting circuits wire by wire, while hydraulic schematics follow oil from the pump through the control valve to the boom and bucket cylinders. Diagnostic charts open the engine, fuel, electrical and hydraulic sections, and the power train chapter carries the hydrostatic pumps, motor, axles and center reduction gear from teardown to reassembly. Bench your starter at 11.5 volts no load and look for 3700 rpm minimum, then set the piston pump tie bolts at 25 to 28 ft-lbs. Guess a torque and you crack a pump housing. Bookmarked and text searchable, this download lives wherever the machine does.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 9-16 | Specifications, Predelivery, Delivery, And After-Sales Services, Tune-Up and Adjustment |
| Engine | 17-58 | Diagnosing Engine Malfunctions, Basic Engine, Repair, Assembly, And Adjustments of Engine |
| Fuel System | 59-70 | Diagnosing Fuel System Malfunctions, Carburetor, Fuel Filter and Fuel Pump, Specifications and Special Tools |
| Electrical System | 71-96 | Diagnosing Electrical System, Battery and Wiring Diagrams, Charging System, Ignition System, Starting Motor, Specifications and Special Tools |
| Power Train | 97-134 | Diagnosing Hydrostatic Drive System, Operation of Hydrostatic Pumps, Hydrostatic Pumps, Hydrostatic Motor, Axle Assemblies, Center Reduction Gear, Specifications and Special Tools |
| Steering and Brakes | 135-144 | Steering, Brakes, Specifications and Special Tools |
| Hydraulic System | 145-174 | Diagnosing Hydraulic System, Hydraulic Pump, Hydraulic Control Valve, Hydraulic Cylinders, Hydraulic Oil Filter, Specifications and Special Tools |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel nuts for tightness | 90 ft-lbs | p. 11 |
| Wheel nuts and studs | 90 ft-lbs | p. 12 |
| No-Load Test Voltage | 11.5 volts | p. 87 |
| No-Load Test Speed | 3700 rpm minimum | p. 87 |
| Solenoid Switch Hold-In Winding Current Consumption | 18.0-20.0 Amps at 10 Volts | p. 95 |
| Solenoid Switch Pull-In Winding Current Consumption | 52.4-57.8 Amps at 10 Volts | p. 95 |
| Relief Poppet Pressure | 1500 psi | p. 161 |
| Engine Flywheel Horsepower | 23.5 hp | p. 10 |
| Engine Maximum Torque | 40 ft-lbs | p. 10 |
| Fuel Tank Capacity | 11 gal. | p. 10 |
| Hydraulic and Hydrostatic System Capacity | 15 gal. | p. 10 |
| Tire Pressure | 30 to 32 psi | p. 11 |
