COUPLING AS 8S4599 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     -     Guide Stud (5/8 - 18 NF)     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Remove the fan drive belts. Refer to Operation and Maintenance Manual, "Belts - Inspect/Adjust/Replace".
Illustration 1 g00514084
Remove top bolt (1) from the vibration damper and pulley assembly. Install Tooling (A) in place of the bolt.
Remove remaining bolts (1) .
Remove vibration damper (3) from the crankshaft.
Remove pulley (2) from the crankshaft.Installation Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     -     Guide Stud (5/8 - 18 NF)     1    
B     4C-5593     Anti-Seize Compound     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Thoroughly inspect the viscous damper for signs of leakage or for signs of a dented (damaged) case. Either of these conditions can cause the weight to make contact with the case. This can affect the viscous damper's operation.
Illustration 2 g00514084
Install Tooling (A) in the bolt hole at the top of the crankshaft.
Install pulley (2) and vibration damper (3) on the crankshaft.
Apply Tooling (B) to bolts (1) . Install bolts (1) .
Remove Tooling (A) . Install bolt (1) in place of Tooling (A) .
Install the fan drive belts. Refer to Operation and Maintenance Manual, "Belts - Inspect/Adjust/Replace".