Charging Systems: Alternators: Testing: Disassembly

Remove brush screws, insulating washers, and lift brush assemblies from end shield.
CAUTION: Stator is laminated, do not burr stator or end shield.
Remove thru bolts and pry between stator and drive end shield with blade of screwdriver. Carefully separate drive end shield, pulley and rotor assembly away from stator and rectifier end shield assembly.
Remove rectifier and sink assembly by removing three nuts from studs on terminal block. Lift off stator winding terminals and carefully pry stator from end shield. Loosen screws securing negative rectifier and heat sink to end shield, completely remove outer screws and lift assembly out of end shield.
Remove two screws and washers from positive heat sink assembly, and self tapping screw from capacitor and lift assembly from end shield.
Pulley is an interference fit on rotor shaft. It must be removed with a suitable puller (C-4333, 100 amp.), (C-4068, all others) or equivalent. Now pry drive end bearing spring retainer from end shield with a screwdriver. Support end shield and tap rotor shaft with a plastic hammer to separate rotor from end shield.
Drive end ball bearing is an interference fit on rotor shaft. Remove bearing with a suitable puller (C-4333, 100 amp.) or (C-4068, all others). The needle roller bearing in rectifier end shield is a press fit. If it is necessary to remove this bearing, protect shield by supporting it with a proper support (C-4330-1, 2 & 3, 100 amp.) or (C-3925, all others) and press out with a suitable adapter (C-3770A).