MOUNT AS 4915830 - Caterpillar

Removal Procedure
Start By:
Remove the alternator belt. Refer to Disassembly and Assembly, "Alternator Belt - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Turn the battery disconnect switch to the OFF position.
Make temporary identification marks on the connections of the harness assembly.
Illustration 1 g01271317
Typical example
Disconnect the harness assembly from alternator (3).
Remove bolt (5) from alternator (3).
Remove nut (1) and washer (2). Remove bolt (6) from alternator (3). Remove the alternator from alternator bracket (4).
If necessary, follow Step 6.a and Step 6.b in order to remove pulley (8) from alternator (1).
Hold the shaft of alternator (3) with an allen wrench. Use a cranked ring spanner (box wrench) in order to loosen nut (7).
Remove nut (7) and pulley (8) from alternator (3).