SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Caterpillar


Engine

Usage:

Remove Engine

Start By:

a. remove two drive shafts (accessory drive and torque converter to transfer gears) *

b. remove radiator guard

c. remove radiator


*These topics are in Power Train, Disassembly And Assembly.

1. Drain systems hydraulic tank, and install body support (FT1437).

2. Disconnect and put plugs in six hose assemblies (1). Disconnect wire (2) from the torque converter.

3. Disconnect two hose assemblies (3) from the union on top of the torque converter.

4. Disconnect two hose assemblies (5) from air compressor (4).

5. Disconnect hose (6), and remove hose (8) from the vehicle. Remove two clips (7) from the bottom of the oil pan.

6. Remove hoses (9) and (10) from the oil cooler elbow.

7. Remove two fuel lines (11).

8. Remove two cables (12) from the electric starting motor. Remove one wire (13) from the switch assembly.

9. Disconnect terminal assembly (14) from the air conditioner compressor. Remove clip (15).

10. Disconnect hose (16) from the governor control valve. Remove tachometer drive cable (17) from vehicle.

11. Disconnect wire harness (18) from the right side of the cab. Disconnect two clips (19).

12. Remove nuts and bolts (21). Remove pipe (20) from the vehicle.

13. Remove wire harness (22) from the magnetic switch. Remove the plastic strap.

14. Remove clip (23) from the battery cable.

15. Remove two bolts (24) and cap (25) from the right rear side of the engine.

16. Remove two bolts (26) and cap (27) from the left rear side of the engine.

17. Fasten tooling (A) and a hoist to the engine. Remove two bolts (28) from each end of the support assembly.

18. Remove four bolts (29) that fasten the engine front support to support assembly (30).

19. Lift the engine high enough to remove the support assembly. Remove support assembly (30).

20. Remove the engine from the vehicle. Weight of the engine is 2143 kg (4725 lb).

Install Engine

1. Install tooling (A) and hoist on the engine. Lower the engine in the vehicle.

2. Install support assembly (2) in position. Install four bolts in position (3) and two bolts in position (1) on each end of the support assembly. Tighten all bolts to a torque of 320 ± 15 lb ft (435 ± 20 N·m).

3. Install cap (5) and bolts (4) to the right rear side of the engine. Tighten bolts to a torque of 435 ± 20 N·m (320 ± 15 lb ft).

4. Install cap (6) and bolts (7) to the left rear side of the engine. Tighten bolts to a torque of 435 ± 20 N·m (320 ± 15 lb ft).

5. Install two hoses (9) to the air compressor. Install two hoses (8) to the union on top of the torque converter.

6. Install six hoses (10) and one wire (11) to the torque converter.

7. Install two hose clips (12) to the bottom of the oil pan.

8. Install hoses (13) and (14) to the elbow.

9. Install hoses (15) and (16) to the oil cooler elbow.

10. Install two fuel lines (17).

11. Connect wiring harness (18) to the right side of the cab. Install the two clips to the right side of the cab.

12. Install two cables (19) to the electric starting motor. Install one cable (20) to the switch assembly.

13. Install plastic strap (21). Install wiring harness (22) to the magnetic switch.

14. Install clip (24) and electrical connectors (23) to the air conditioner compressor.

15. Install hose (25) to the governor control valve.

16. Install cable assembly (26) to the tachometer.

17. Install gasket and pipe (27) on the turbocharger elbow.

18. Install battery cable (28) and the two clips in position.

19. Fill the hydraulic tank with oil. See the Maintenance Guide.

End By:

a. install two drive shafts (accessory drive and torque converter to transfer gears) *

b. install radiator

c. install radiator guard


*These topics are in Power Train, Disassembly And Assembly.

Caterpillar Information System:

SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Valve Covers
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Exhaust Crossover Manifold
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Exhaust Manifolds
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Timing Gear Cover
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Governor Control Cylinder
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Governor Shutoff Solenoid
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Crankshaft Front Seal And Wear Sleeve
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Engine Front Support And Trunnion
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Vibration Damper And Crankshaft Pulley
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Water Pump
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Water Temperature Regulators
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Fan Belt Tightener (Later)
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Air Conditioning Condenser
SUPPLEMENT FOR 768C TRACTOR & 769C TRUCK & 771C QUARRY TRUCK Air Conditioning Dryer And refrigerant Switch
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Hoods
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Electric Starting Motor
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Alternator
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Air Conditioning Compressor
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Air Conditioning Condenser
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Air Conditioning Dryer
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Air Compressor
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Accessory Drive
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Crankcase Guards, Oil Filters And Base
SUPPLEMENT FOR 772B TRACTOR, 773B TRUCK & 775B QUARRY TRUCK- Oil Filter Base
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