SR 4 GENERATOR
DISASSEMBLY AND ASSEMBLY
ROTOR ASSEMBLY
REMOVE ROTOR ASSEMBLY
(HORIZONTAL METHOD)
4457-11
start by:
a) remove generator from engine
b) remove control panel
1.
Remove plates (1), shims (3), and fan (2) from
the front of generator.
2.
Install pieces of cardboard or sheet metal (4)
between the rotor assembly and the stator
assembly. Be sure the pieces are as long as the
rotor assembly.
3.
Remove the louvers and panels from the back of
generator. Remove the bolts that hold the
retainers for the bearing. Disconnect wires F1
and F2 from the regulator assembly.
4.
Remove the bolts for the cover. Install two
guide bolts (5) with 1/2"-13 NC threads,
approximately 10 in. (250 mm) long. Connect a
hoist to the cover. Push the cover from the
bearing with two 3/8"-16 NC forcing bolts.
Remove the cover.
NOTICE
Do not damage the stationary exciter
field, which is part of the cover, when
removing the cover.
5.
Fasten a hoist to the back of shaft.
6.
Put a steel pipe (7) on the end of shaft, to the
inside of hub.
NOTE: Be sure the pipe is long
enough
to
go
through
the
generator.
7.
Remove rotor assembly (6) out the back of
generator with a hoist.
NOTICE
Keep the rotor assembly level at all
times during removal. This will
prevent damage to the armature
windings in the generator.
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