SR 4 GENERATOR
DISASSEMBLY AND ASSEMBLY
GENERATOR BEARING
(OUTSIDE BEARING TYPE RFA)
REMOVE GENERATOR BEARING
7551-11
Tools Needed
A
887551
Bearing Puller Attachment
1
887548
Push Puller Assembly
1
887560
Step Plate
1
887563
Handle
1
8H684
Ratchet Box Wrench
1
1. Remove the panel and louvers from the frame
assembly.
2. Put two pieces of cardboard or sheet metal between
the rotor assembly and the stator assembly. This will
keep the rotor off of the stator when the cover
assembly is removed.
3. Remove four bolts (2) and the retainers that hold the
bearing.
4. Remove six bolts (1) that hold the cover on the stator.
Remove the wires F1 and F2 from the regulator
assembly.
5. Install two guide bolts (4) with 1/2"-13 NC threads, 10
in. (250 mm) long.
6. Install two 3/8"-16 NC forcing bolts (3) in the threaded
holes in cover. Push the cover from the bearing and
remove the cover with a hoist.
NOTICE
Do not damage the stationary exciter
field, which is part of the cover, when
the cover is removed.
7. Remove ring (6) that holds bearing (5) on the shaft.
8. Install tool group (A) and remove the bearing from
shaft.
NOTICE
Do not damage the armature of the
exciter when the tool group is
installed.
NOTE: After the bearing has been
removed, the armature of the exciter
C
can be removed. The armature
windings will be destroyed.
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