GEAR AS 4W9989 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7573 Link Bracket 2
B - Guide Bolts
1 - 14 NF by 8 inch 2
C 2D-1201 Eyebolts 2
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Remove the magnetic pickups.
Illustration 1 g00911678
Install Tooling (A) on flywheel (1) and attach a suitable lifting device. The weight of flywheel (1) is approximately 167 kg (370 lb).
Remove two bolts (2) on each side of the crankshaft.
Install Tooling (B).
Remove remaining bolts (2).
Remove flywheel (1). Use the following procedure if flywheel (1) is not easily separated from the crankshaft:
Install Tooling (C) in each side of flywheel (1).
Use a prybar to remove flywheel (1) from the crankshaft. Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 138-7573 Link Bracket 2
B - Guide Bolts
1 - 14 NF by 8 inch 2
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Inspect the condition of the flywheel ring gear. Use the following procedure in order to replace the ring gear, if necessary.
Remove the damaged ring gear from the flywheel.
Raise the temperature of the new ring gear.
Install the gear on the flywheel. Ensure that the chamfer of the gear teeth will be toward the pinion of the starting motor.
Illustration 2 g00911678
Install Tooling (B) in the end of the crankshaft.
Install Tooling (A) onto flywheel (1) and attach a suitable lifting device. The weight of flywheel (1) is approximately 167 kg (370 lb). Note: Ensure that the mark on flywheel (1) is aligned with the mark on the crankshaft.
Lift flywheel (1) into position onto Tooling (B).
Apply clean engine oil to bolts (2) and install bolts (2).
Remove Tooling (A) and Tooling (B). Install remaining two bolts (2). Tighten bolts (2) to the correct torque. Note: Refer to Specifications, "Flywheel" for the correct torque.
Install the magnetic pickups.