Rear Terminal Models: Disassembly
- Mark housings and stator with scribe for reassembly. Remove through bolts and separate front housing with rotor from stator and rear housing. Remove all nuts and insulators from rear housing. Remove rear housing from stator and rectifier assembly. See Fig 2.
- Clamp front housing in soft-jawed vise. Remove drive pulley nut. Remove lock washer, pulley, fan and spacer from rotor shaft. Remove rotor from front housing. Remove front bearing spacer. Do not remove rotor stop ring unless damaged.
- Remove front bearing retainer. If bearing has lost lubricant or is damaged, remove bearing. Support front housing close to bearing boss. Press out old bearing.
- Remove brush holder, brushes, springs, insulator and terminal. Press bearing from rear housing if bearing replacement is required. Support housing on inner boss while removing bearing.
- If rectifier assembly is being replaced, unsolder stator leads from rectifier terminals. Use 100-watt soldering iron and use care not to apply direct heat to rectifier. Separate stator from rectifier assembly.
- Different types of rectifier assemblies are used. Rectifier assembly may have circuit board spaced away from diode plates. The external diodes are exposed. The other type is a rectifier assembly with internal diodes. See Fig 1.
Courtesy of FORD MOTOR CO.
- If alternator rectifier has exposed diode board, remove stator lead screws from rectifier by rotating screw 1/4 turn clockwise to unlock. Remove retaining screws.
- On rectifier with internal diodes, stator lead screw must be pushed from rectifier. Do not turn stator lead screw during removal. Rotation of stator lead screw will damage serrations used to retain terminal screw. Do not remove grounded screw.
Courtesy of FORD MOTOR CO.