John Deere Tractor Repair Manual 670, 770, 870, 970, 1070

150. The main transmission is located in the rear of clutch housing and the range transmission is located in the front of rear axle center housing. To separate between clutch housing and transmission housing, first lower the lift arms, then drain hydraulic and transmission lubricating fluid.

Remove front driveshaft from models with front-wheel drive. On all models, disconnect battery ground, then remove hydraulic suction, pressure and return lines which would interfere with separation of housings.

Cover all openings in hydraulic system to prevent the entrance of dirt. Remove rockshaft stop knob, rear pto knob and mid pto knob (if so equipped), then remove cover that surrounds these controls.

Remove clutch housing cover and step plates, then unbolt brackets and fenders from step supports or other brackets which prevent separating.

Disconnect or remove brake linkage and return springs from right pedal to right brake and from cross shaft lever to left brake. Close fuel shut-off valve at fuel filter, disconnect fuel lines, then cover all fuel system openings.

Check around tractor at joint where clutch housing attaches to the rear axle center housing for any wiring, connected springs, hydraulic lines, fuel lines or attached brackets that would interfere with separation.

Remove or tie out of the way anything that might be damaged.

• Detailed illustrations and exploded views
• Troubleshooting sections covering most models
• Brakes
• Cooling system
• Differential
• Electrical system
• Engine
• Final drive
• Axles
• Hydraulics
• Transmission
• Condensed service data information
• Detailed index

• Accurate information in a concise, easy-to-use format
• Durable, coated paper stands up to messy shop jobs