GENERATOR DRIVE MECHANISM REPLACE/REPAIR (650 AMPERE)
1. Remove generator drive gear assembly (17) from
generator drive adapter (4).
a. Go to Work Package 0039 and bench test the
drive gear (18).
2. Check bearing (19) on each end of drive gear (18). 19
a. Look for broken, cracked or split rings, cracked,
broken or loose separators, heat discoloration
(brown-blue or blue-black color). Rotate the free
race slowly and feel for roughness. If any of
these conditions exists, the bearing must be
b. If either bearing needs replacement, go to step 3.
c. If both bearings are OK, go to step 4.
Because the force used to press the bearing from the gear is through
the individual balls and not the race, the bearing is destroyed when it
is removed. Do not use either bearing once it has been pressed from
a. Using an arbor press (item 8, WP 0176), remove and discard ball bearing (19) from either
end of drive gear (18).
b. Press opposite end ball bearing (19) from drive gear (18) in a similar manner.
WP 0156 00-4