SPROCKET 8W8346 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Guide Stud
5/8 - 18 UNF by 11 inch 2
Illustration 1 g01146830
Illustration 2 g01146857
Remove two bolts (1). Install Tooling (A) in the crankshaft.
Remove remaining bolts (1). Slide flywheel (2) away from the engine on Tooling (A).
Attach a suitable lifting device to flywheel (2). The weight of flywheel (2) is approximately 120 kg (265 lb). Remove flywheel (2).
If necessary, use a hammer and a punch in order to remove ring gear (3) from flywheel (2). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A - Guide Stud
5/8 - 18 UNF by 11 inch 2
Illustration 3 g01146830Note: Ring gear (3) must be installed with the chamfered side of the teeth upward. The chamfered side of the gear teeth will be facing toward the starting motor when the flywheel is installed.
Raise the temperature of ring gear (3). Install ring gear (3) on flywheel (2).
Install Tooling (A) in the crankshaft.
Attach a suitable lifting device to flywheel (2). The weight of flywheel (2) is approximately 120 kg (265 lb). Position flywheel (2) on the crankshaft.
Apply clean engine oil to the threads of bolts (1).
Install bolts (1). Remove Tooling (A). Install remaining bolts (1).
Tighten bolts (1) to a torque of 270 40 N m (200 30 lb ft).
Check the flywheel runout. Refer to Testing and Adjusting, "Flywheel - Inspect".