Drive End Frame: Removal

Scribe mark to help locate the frame end parts in the same position during assembly.

1. Remove four through-bolts.
Fig 1: View Of CS-144 Components (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 2: View Of CS-144 Components (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
2. Remove rotor and drive end frame assembly from the slip.
   NOTE: On models with a slip ring end ball bearing on the rotor shaft, this bearing must be replaced with a new bearing any time the two halves of the generator are separated. If not replaced, the bearing may bind and fail due to distortion of Its outer tolerance rings. This does not apply to roller-type slip ring end frame bearings.

   Place the rotor in a vise and tighten only enough to permit removal of the pulley nut.

   NOTE: The rotor may be distorted if the vise is overtightened.
3. Remove nut and washer from the shaft.
4. Remove pulley, collar, fan, and outside collar from the shaft.
5. Remove drive end frame and the inside collar from the rotor shaft.
6. Remove three screws and the retainer from the drive end frame. See Fig 3.

   Press the bearing from the drive end frame.

Fig 3: View Of Drive End Frame Components
Courtesy of GENERAL MOTORS CORP.
7. Remove slip ring end bearing (if equipped) from the rotor shaft using J 28509-A. See Fig 4. Some models have a pressed on race that should not be removed.

Fig 4: Removing Slip Ring End Bearing

Courtesy of GENERAL MOTORS CORP.