3500 GENERATOR SET ENGINES Caterpillar


Front Balancer Group (3508)

Usage:

Remove And Install Front Balancer Group (3508)

Start By:

a. remove front drive housing

1. Remove the bolts that hold the brackets for shaft (2) to the front of the cylinder block. Disconnect the levers on shaft (2) from the levers on shafts (1) and (3) and remove shaft (2) from the engine.

2. Use tool (A) to make an alignment of the marks on balancer gear (4) and crank gear (6) according to the rotation of the engine as shown.

3. Remove the bolts and plate (5). Remove balancer gear (4) from the shaft.

4. Use tool group (A) and a press to remove bearing (7) from balancer gear (4).

5. Remove shaft (8).

6. Remove crank gear (6) from the end of the crankshaft.

NOTE: The following steps are for installation of the front balancer group.

7. Put crank gear (6) in position on the end of the crankshaft and install the bolts.

8. Install shaft (8).

NOTE: Make sure the joint in bearing (7) is in the center of the heavy section of gear (4).

9. Use tool group (B) and a press to install bearing (7) in balancer gear (4). The bore in the bearing must be 75.000 ± 0.053 mm (2.9528 ± .0021 in) after assembly.

10. Put balancer gear (4) in position on the shaft. Make sure the marks on the balancer gear and the crank gear are in alignment according to the rotation of the engine as shown.

11. Install plate (5) and the bolts.

12. Put shaft (2) in position on the cylinder block. Make sure the levers on shaft (2) are correctly engaged with the levers on shafts (1) and (3) and install the bolts to hold the brackets and shaft (2) to the cylinder block.

End By:

a. install front drive housing

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