Rear Terminal Models: Disassembly
- Mark both housings and stator with scribe for reassembly. Remove through bolts and separate front housing and rotor from stator and rear housing. Remove all nuts and insulators from rear housing. Remove rear housing from stator and rectifier assembly. See Fig. 5.
- Remove brush holder mounting screws, holder, brushes, springs, insulator and terminal. If replacement is necessary, press bearing from rear housing, supporting housing on inner boss. If rectifier assembly is being replaced, unsolder stator leads from rectifier terminals and separate stator from rectifier assembly.NOTE: Use 100 watt soldering iron.
- Original production alternators will have one of two types of rectifier assembly boards; one has circuit board spaced away from diode plates with diodes exposed. The other type is single circuit board with built-in diodes. If alternator rectifier has exposed diode board, remove screws from rectifier by rotating bolt heads 1/4 turn clockwise to unlock, and remove screws.
- Push stator terminal straight out on a rectifier with diodes built into circuit board. Avoid turning screw while removing to make certain straight knurl will engage insulators when installing. Do not remove grounded screw.
- Remove drive pulley nut, using Alternator Pulley Remover (T63L-8620-A). Pull lock washer, pulley, fan and spacer from rotor shaft. Remove rotor from front housing, and remove front bearing spacer. Do not remove rotor stop ring from shaft unless it is damaged.
- Remove 3 screws holding front end bearing retainer and remove retainer. If bearing has lost lubricant or is damaged, support housing close to bearing boss and press out old bearing.