PLUG (.500 Orifice Diameter) 2P4519 - Caterpillar

Procedure for the 30-SI
Remove the pulley nut, the washer, the pulley, and the fan.
Illustration 16 g00651125
Remove 4 screws (1). Remove plate (2) .
Illustration 17 g00651225
Remove 2 insulated screws (3). Remove 2 leads (4) .
Illustration 18 g00651226
Remove screw (8). Remove nut (6). Remove leads (5). Remove strap (7).
Illustration 19 g00651227
Remove screw (9). Remove regulator (10) .
Illustration 20 g00651228
Remove terminal (11) .
Remove 3 nuts (13). Remove 3 leads (14) .
Remove strap (12). Remove diode trio (15) .
Illustration 21 g00651232
Remove screw (18). Remove nut (16) and slide terminal strap (17) out of the housing.
Illustration 22 g00651233
Remove 2 screws (19). Remove rectifier bridge (32) .
Illustration 23 g00651234
Remove screw (33). Remove capacitor (34) .
Illustration 24 g00651362
Typical ExampleNote: 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 (21). Carefully separate housing (22) from housing (20) .
Illustration 25 g00651365
Typical Example
Pull apart stator (23) and housing (20). Guide the stator leads through the hole as the stator is removed from housing (20) .
Illustration 26 g00651235
Remove 4 screws (25). Remove the coil and support (24) from housing (20). Guide the field leads through the hole as the coil is removed from the housing. Pry cap (26) from housing (20). This will expose the bearing for the rotor.Note: Do not strike the bearing. Shocks from striking the housing can cause damage.
Wipe the excess grease from the bearing well. Press the bearing into the housing. Remove the inner race.
Illustration 27 g00651367
Typical Example
Remove 4 screws (27) from housing (22) .
Illustration 28 g00651391
Typical Example
Lift rotor (28) and bearing (29) from housing (22) .
Pull bearing (29) from rotor (28) .
Pull retainer (30) from rotor (28) .
Pull collar (31) from rotor (28) .