SUPPORT AS 4655193 - Caterpillar

Removal Procedure
Start By:
Remove the alternator belt. Refer to Disassembly and Assembly, "Alternator Belt - Remove and Install" for the correct procedure.
Turn the battery disconnect switch to the OFF position.
Illustration 1 g03825459
Illustration 2 g02815777
Make temporary marks on the alternator harness in order to identify the locations for the connections during the assembly procedure.
Disconnect the harness assembly from alternator (6).
Support the weight of the alternator and remove bolt (2A).
If necessary, support the weight of the alternator and remove nut (1) and bolt (2).
Remove nut (3) and bolt (5) (not shown) from alternator (6).
Remove alternator (6) from alternator bracket (4).
If necessary, follow Step 8.a through Step 8.e in order to remove pulley (7) from alternator (6). Note: Either of Tooling (A) may be required in order to carry out the removal of the alternator pulley.
Place the alternator in a suitable support.
Hold shaft (9) of alternator (6) with a suitable tool. Use a cranked ring spanner to loosen nut (8).
Make a temporary mark on pulley (7) in order to show the correct orientation.
Remove nut (8) and pulley (7) from shaft (9).
Remove fan (10) from shaft (9).
Illustration 3 g03826953
If necessary, follow Step 9.a through Step 9.b in order to remove alternator bracket (15) from the cylinder block.
If necessary, remove bolt (14) (not shown) from the coolant tube assembly.
Remove bolts (13) from alternator bracket (4). Remove the alternator bracket from the cylinder block. Note: Support the weight of the alternator bracket as the bolts are removed.