Diassembly (80A/105A)
- Remove "B" terminal inner nut "3" and insulator "2".
- Remove rear end cover "1". See Fig 1 .
- Remove 2 screws "3" and pull out brush holder assembly "4".
- Remove 3 screws "1" and IC regulator "2".
- Remove brush holder cover from brush holder. See Fig 2 .
- Remove 4 screws, 1 bolt and rectifier "1". See Fig 3 .
- Remove 4 rubber insulators "1". See Fig 4 .
- Hold shaft by using hexagonal box wrench "2" and remove pulley nut, and pull out pulley "1". See Fig 5 .
- Remove 4 rear end frame nuts "3".
- Drive out rear end frame "1" with tapping rotor shaft "2" lightly by using plastic hammer "4".
- Separate rear end frame "1" from rotor evenly by using plastic hammer "4". See Fig 6 .
- If required, use bearing puller "2" to remove end housing bearing "1" and bearing cover "3". See Fig 7 .
- If required, remove 4 screws, retainer plate "2" and drive out drive end bearing "3".
- If required, remove stud bolts "1" and then pull out stator "4". See Figure .
CAUTION:
To hold shaft, use hexagonal box. Duodecimal box may cause slipping and consequential shaft or tool damage. Do not attempt to hold pulley by using vise or pipe wrench so as not to distort it.
CAUTION:
Do not hit shaft at slip ring side, when separating rotor and rear end frame.
CAUTION:
Care must be exercised so as not to distort cooling fan blade while applying puller.
NOTE:
Heating drive end frame may facilitate removal of stator.