C3.3 Industrial Engine Caterpillar

Installation Procedure

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Illustration 1	g01441026
Typical example

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Illustration 2	g01444555
Sequence for tightening accessory drive

1. Inspect the bore in front housing (3) for damage. If necessary, replace the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove" and Disassembly and Assembly, "Housing (Front) - Install".

2. Lightly lubricate a new O-ring seal (5) (not shown) with Tooling (C). Install the O-ring seal (not shown) into the groove in accessory drive housing (4).

3. Lightly lubricate bearing (6), bearing (8), and gear (7) with clean engine lubricating oil. Install the assembly of the accessory drive to the front housing. Ensure that the flange on the accessory drive housing is flush with the front housing.

4. Apply Tooling (D) to allen head screws (1) and allen head screw (2).

5. Install allen head screws (1) and allen head screw (2) to accessory drive housing (4).

6. Tighten allen head screws (1) to a torque of 22 N·m (16 lb ft).

   Tighten allen head screw (2) to a torque of 44 N·m (32 lb ft). Tighten allen head screws (1) and (2) in the sequence that is shown in Illustration 2.

7. Ensure that there is tactile backlash between the idler gear and the accessory drive gear.