3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Caterpillar


Fan Drive And Belt Tightener (Later)

Usage:

Remove And Install Fan Drive And Belt Tightener

1. Drain the coolant to the level of the cylinder heads.

2. Remove tube (1) and the gasket, left half of fan guard (2) and brace (3).

3. Fasten a nylon strap and hoist to fan spider adapter (4).

4. Remove the bolts and nuts that hold fan spider adapter (4) to the hub.

5. Place a piece of cardboard over the rear side of the radiator core, and put the fan spider and adapter in position against the cardboard.

------ WARNING! ------

V-belts (5) are under tension from spring (6). If tool (A) slips while releasing the belt tension, personal injury may result. Be sure tool (A) is properly engaged with the belt tightener.

--------WARNING!------

6. Use tool (A) (or equivalent) to carefully release the tension of spring (6) on V-belts (5).

7. Carefully remove V-belts (5).

8. Remove lubricant tube (7) for the fan drive.

9. Fasten a nylon strap and hoist to bracket assembly (8). The weight of bracket assembly (8) is 39 kg (86 lb.).

10. Remove the four bolts that hold bracket assembly (8) to the front cover, and remove the fan drive and belt tightener.

NOTE: The following steps are for installation of the fan drive and belt tightener.

11. Put the fan drive and belt tightener in position, and fasten bracket assembly (8) to the front cover.

12. Install lubricant tube (7) for the fan drive.

------ WARNING! ------

Belts (5) are held in tension by spring (6). If tool (A) slips while installing belts (5), personal injury may result. Be sure tool (A) is properly engaged with the belt tension.

--------WARNING!------

13. Inspect V-belts (5), and replace them if necessary. Replace the belts as a set only.

14. Use tool (A) (or equivalent) to carefully release the tension of spring (6) for the belt tensioner, and install the V-belts.

15. Install the O-ring seal on the hub, and fasten fan spider adapter (4) to the hub.

16. Remove the cardboard over the rear side of the radiator core.

17. Install fan guard (2) and brace (3).

18. Install tube (1) with a new gasket.

19. Fill the cooling system to the correct level. See the Maintenance Guide.

20. Lubricate the fan drive and belt tightener. See the Maintenance Guide.

Caterpillar Information System:

3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fan Drive (Earlier)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fan Assembly
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Governor
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Pump Housing
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Pump Housing And Governor
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Automatic Timing Advance
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Rack Travel
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Pumps
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Transfer Pump
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Nozzles And Adapters (Later)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Nozzle Adapters (Later)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Nozzle Adapters (Direct Injection-Earlier)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fan Belt Tightener (Later)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fan Drive (Later)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Water Temperature Regulators
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Water Pump
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Vibration Damper And Crankshaft Pulley
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Engine Front Support And Trunnion
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Crankshaft Front Seal And Wear Sleeve
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Governor Shutoff Solenoid
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Governor Control Cylinder
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Timing Gear Cover
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Camshaft
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Camshaft Bearings
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