D4 TRACK-TYPE TRACTOR POWER SHIFT Every 1000 Service Hours Or 6 Months Caterpillar

(30)Final Drives

1. Remove drain plugs at rear of both final drives and allow to drain.

2. Clean and install drain plugs. Fill through fill plug openings (refill capacity on page 31).

(31)Steering Clutches

Remove seat cushion. Lubricate 3 control shaft fittings.

(32)Sprocket Hub

Pry against each side of sprocket with 5 ft. (1,5 m) bar. It sprocket moves, adjust bearing.

To Adjust

1. Remove guard. Remove lock bolt and lock.

2. Remove outer cap and retaining nut lock.

3. Loosen adjusting nut.

4. Tighten retaining nut to 500 to 600 lb. ft. (69- 83 mkg).

5. Tighten adjusting nut. Use 5 ft. (1,5 m) extension.

6. Install retaining nut lock and outer cap.

7. Install lock and lock bolt.

8. Install guards.

(33)Steering Clutches - Wash Compartment

1. Machine must be level. Remove clutch compartment drain plugs and allow oil accumulation present to drain.

2. Clean and install drain plugs. Remove clutch compartment access cover plates.

3. Add enough non-flammable cleaning fluid to cover lower section of steering brake bands.

4. Drive machine back and forth for five minutes without disengaging steering clutches.

5. Drain compartments. Clean and install drain plugs.

6. Add fresh cleaning fluid to cover lower section of brake bands.

7. Drive machine back and forth for five minutes. Occasionally apply brakes.

8. Drain compartments. Clean and install drain plugs.

9. Inspect access cover plate gaskets. Use new gaskets if necessary. Install cover plates.

10. Lubricate steering clutch release bearings.

Adjust Steering Clutches

Free travel of each steering clutch lever should be 3 inches (76 mm).

1. Remove seat cushion.

2. Remove adjusting nut covers at top of each clutch compartment.

3. Loosen adjusting nut locknut.

4. Turn adjusting nut to obtain correct lever free travel.

5. Tighten locknut and install cover.

6. Remove control lever stop access cover.

7. Loosen stop bolt locknut. Adjust stop bolt for at least 15/16 inch (23 mm) clearance.

8. Tighten locknut. Install cover and seat cushion.

(34)Transmission And Torque Converter

1. Engine stopped and machine level. Remove transmission and torque converter drain plugs and allow to drain.

2. Remove suction screen.

3. Remove screen housing.

4. Remove screen. Wash in clean solvent.

5. Install screen assembly and housing.

7. Clean and install drain plugs.

8. Fill to FULL mark on gauge. Start engine. Check oil level and add if necessary (refill capacity on Page 31).

(35)Bevel Gear Compartment

1. Remove drain plug and allow to drain.

2. Clean and install drain plug. Start engine. Check oil level and add if necessary (refill capacity on page 31).