Panasonic EY74A2 Service Manual page 10

4.7. Removing the Gear Case Assembly.
* Assembly precautions
1. Exercise care when attaching the lock ring, ring gear, stopper, and ring
gear A to align them in the proper orientation (as shown in the above figure).
2. When installing the gear case to the clutch case, be sure to align the pro-
truding ribs on the clutch case with the recessed ribs on the gear case.
3. When installing the motor mounting plate to the gear case, align and
engage the two protruded sections on motor mounting plate with the two
notches on the gear case, then turn the motor mounting plate clockwise until
a clicking sound is produced to ensure secure mounting.
4. When installing the adjusting screw, make sure that the narrow protrusion
is on the right and flush with the clutch case surface.
5. Precautions when applying the grease (ALVANIA).
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1. Rotate the motor mounting plate to the
left and remove it from the gear case.
2. Remove the thrust plate, planet gear
B, ring gear B, carrier B, planet gear A,
carrier A, and the ring gear A (in that
order).
3. Remove 4 screws.
4. Remove the gear case, stopper, thrust
plate, planet gear, ring gear, carrier, steel
balls, pin, cushion plate, lock plate, lock
ring, thrust plate, wave washer and
thrust plate (in that order).
5. Insert the jaws of snap ring into two
holes on the C-ring. Open the jaws and
lift up on the ring to remove it.
* The C-ring cannot be reused after
being repaired or otherwise adjusted.
6. Remove the driving shaft, thrust plate,
steel balls, thrust plate, adjust screw,
clutch spring and thrust plate from the
clutch case.