Drive-End Frame Disassembly Procedure

SD-255 Components:

1. Disassemble the plug from the drive end frame assembly.
2. Disassemble the armature with the drive assembly, shift lever, plunger and return spring from the drive end frame.
3. Disassemble the return spring from the plunger.
4. Disassemble the plunger from the shift lever.

Armature, Drive And Shift Lever Assembly:

5. Disassemble the shift lever from the drive assembly by spreading the lever arms slightly to snap them off the mating buttons on the drive collar.
6. Disassemble the drive assembly from the armature shaft in the following way:
- Remove the thrust collar away from the armature shaft.
- Drive the pinion stop collar away from the pinion stop retainer ring by sliding a metal cylinder onto the armature shaft. Strike the metal cylinder against the stop collar with a hammer.
- Spread the pinion stop retainer ring to remove it from the groove in the armature shaft. Discard the old ring. The retainer ring must be replaced.
- Slide the stop collar and the drive assembly off the armature shaft.