3508, 3512 and 3516 Generator Set Engines Caterpillar

Removal Procedure

1. Remove the magnetic pickups.
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   Illustration 1	g00911678

2. Install Tooling (A) on flywheel (1) and attach a suitable lifting device. The weight of flywheel (1) is approximately 167 kg (370 lb).

3. Remove two bolts (2) on each side of the crankshaft.

4. Install Tooling (B).

5. Remove remaining bolts (2).

6. Remove flywheel (1).

   Use the following procedure if flywheel (1) is not easily separated from the crankshaft:

   1. Install Tooling (C) in each side of flywheel (1).

   2. Use a prybar to remove flywheel (1) from the crankshaft.

7. Inspect the condition of the flywheel ring gear. Use the following procedure in order to replace the ring gear, if necessary.

   1. Remove the damaged ring gear from the flywheel.

   2. Raise the temperature of the new ring gear.

   3. Install the gear on the flywheel. Ensure that the chamfer of the gear teeth will be toward the pinion of the starting motor.

Installation Procedure

1. Install flywheel (1) in the reverse order of removal.

   1. Align the mark on the flywheel with the mark on the crankshaft.

   2. Apply clean engine oil or molybdenum disulfide to bolts (2) prior to installation.

   3. Tighten bolts (2) to a torque of 1150 ± 60 N·m (850 ± 44 lb ft).