RING-BACKUP 3E6783 - Caterpillar

Disassembly Procedure
Start By:
Remove the alternator from the machine. Refer to Disassembly and Assembly, "Alternator - Remove" for the machine that is being serviced.Note: Before disassembly, clean the exterior of the alternator in order to prevent dirt from entering the unit.
Illustration 1 g00825178
Remove pulley nut (2), washer (1), fan (3), and spacer (4) from the rotor shaft.
Illustration 2 g00825176
Remove three bolts (5). Remove the rear cover.
Illustration 3 g00825175
Remove two bolts (6). Disconnect the field winding leads from the regulator. Label the wires. Remove three bolts (7). Remove regulator (8) .
Illustration 4 g00825173
Remove "B-" terminal (15) .
Remove bolt (13). Remove grommet (11). Remove "R" terminal (12) .
Loosen "B+" terminal (9). Remove four bolts (10) and disconnect the stator leads from the rectifier. Label the wires. Remove five bolts (14). Remove rectifier (16) .
Illustration 5 g00825170
For proper alignment during assembly, mark the front frame, the stator, and the rear frame. Mark the locations of the stator leads in the rear frame. Remove four bolts (17). Separate rear frame (18) from front frame (19) .
Illustration 6 g00825168
Mark the location of the field winding leads in the rear frame. Remove three bolts (20). Remove field coil (21) from the rear frame.
Illustration 7 g00825158
Remove roller bearing (22) from the rear frame. The removal of this component requires force.
Illustration 8 g00825156
The stator and the front frame remain marked. Remove stator (23) from the front frame.
Illustration 9 g00825155
Remove rotor (24) from the front frame. The removal of this component requires force.
Illustration 10 g00825154
Remove spacer (25) from the rotor.
Illustration 11 g00825149
Remove three bolts (26). Remove retainer (27) .
Illustration 12 g00825148
Remove ball bearing (28) from the front frame. The removal of this component requires force.