- Remove insulated brush holder retaining screw, flat washer, nylon washer and field terminal, then carefully lift plastic brush holder (with spring and brush assembly) from end housing. Remove retaining screw from ground brush holder, lift clip, spring and brush assembly from end housing.
CAUTION:
Stator is laminated, do not burr stator or end shield. Remove through bolts and pry between stator and drive end shield with blade of a screwdriver. Carefully separate drive end shield pulley and rotor assembly from stator and rectifier shield assembly.
- If necessary to remove rectifiers, unsolder rectifier wire from stator lead at point of crimp. Place suitable removing and installing press in a vise and support end shield on clamp anvil under rectifier to be removed. Suitable support adaptor (C-3771 or SP-3821) is cut away and slotted to fit over wires and around bosses in end shield.
CAUTION:
Bore of tool must be completely surround rectifier during removal process. Carefully apply pressure with tool pressure screw until support tool, rectifier end shield, remover pin and adapter are aligned, then press rectifier out of end shield or heat sink.
- Remove output terminal nuts, washers and remove terminal screw and inside capacitor. Terminal screw also holds heat sink in place. Remove insulator. If necessary to remove rectifier end frame needle bearing, protect end shield by supporting with suitable tool (C-3925). Press bearing out using suitable tool (C-3770A).
CAUTION:
Notches in tool must clear raised section of heat sink.
- Remove pulley using suitable tool (C-4068) and pry drive end bearing spring retainer from shield with a screwdriver. Support end shield and tap out rotor shaft with a plastic hammer. Drive end bearing can be removed with suitable puller (C-3615) and adapters.
CAUTION:
Lower end of adapters must be equally spaced under bearing and tool sleeve bottomed on bearing.