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(3)Field coils
Replace the yoke assembly if -
(a)There is any continuity between the
brush and yoke.
(b)There is no continuity between the
brushes.
(c)The pole piece or coil is loosen.
(4)Bearings
Replace the bearings if they are noisy or fail
to run freely.
(5)Overrunning clutch
Replace the overrunning clutch assembly if -
(a)The pinion is not locked when spun
freely when spun in the reverse direction
(clockwise).
(b)The pinion is worn or chipped
Do not wash the overrunning clutch with
cleaning solvent.
(6)Front bracket
Replace the front bracket assembly if the ball
bearing is noisy or fails or rotate freely.
(7)Reduction gears
Replace the reduction gears if they are worn
or damaged.