RACE-ROLLER 1246348 - Caterpillar

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Remove the 3 screws and insulators (18). Disconnect wire (19) .
If the "R" terminal is used, remove the following components: nut (20), lead (21), the washer and terminal (21) .
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Remove screw (23) and remove diode trio (24) .
Remove the nut and washer (25). Remove insulator (26). Remove alternator output terminal (27) .
Remove separator (28) .
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Note: Many of the alternator's internal components are covered with dielectric grease. If the grease is removed, reapply the grease.
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Remove the heat sink and diode assembly (12) from housing (14). Insulator (29) may be stuck to heat sink (12) .
Illustration 13 g00628035
Note: Do not damage exposed stator windings or field windings. Bumping the windings or scraping the windings may break the insulation. Broken insulation may create a short circuit or a ground.
Remove 4 bolts (30). Carefully separate housing (31) from housing (14) .
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Pull apart stator (32) and housing (14). Guide the stator leads and the grommet through the hole as the stator is removed from housing (14) .
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Remove 3 screws (33). Remove the coil and support (34) from housing (14). Guide the field leads and the grommet through the hole as the coil is removed from housing (14) .
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Position a small screwdriver in slot (35). Pry cap (36) from housing (14) .
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Note: Do not strike the bearing. Shocks from striking the housing can cause damage.
Wipe the excess grease from the bearing well. Press bearing (37) into the housing. Remove the inner race.
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Remove 4 screws (38) from housing (31) .
Lift rotor (39) and bearing (40) from housing (31) .
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Pull bearing (40) from rotor (39) .
Pull retainer (41) from rotor (39) .
Pull collar (42) from rotor (39) .
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Note: Do not strike the bushing. Shocks from striking the housing can cause damage.
Press bushing (43) from housing (14) .Note: Do not strike the diodes. The shock of such an impact can damage the diodes. Use proper tools in order to press or pull the diodes from the mountings. As much as 890 N (200 lb) of force may be needed to remove a diode.
Remove 3 diodes (13) from housing (14) .
Illustration 21 g00628072
Remove diode (11) from heat sink (12) .