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TM 10-4930-250-13&P
(13)
Installthefive rotorvanes(4), with smoothsideof vanesfacingdirectionof rotor(5) rotation(clockwise).
(14)
Install rotor cover gasket (3) in pump housing (10) groove.
(15)
Position rotor cover (2) on pump housing (10). Install the four bolts (1) that attach pump rotor cover (2) to
pump housing (10). Do not over tighten the four bolts (1).
C.
Electrical
Disassembly
and
Inspection.
NOTE
The
electrical
disassembly
procedures
cannot
be performed
until
after
pump
disassembly
paragraph a., steps 1 through
7 have been completed (removal of shaft seal assembly).
(1)
Remove the six screws (27) that attach switch plate (28) to motor casting (29).
A toothed lock washer (30) is located between each wire lug and the line switch (31)
body. Do not allow a lock washer to fall into the armature and permanent magnets of the
motor casting.
(2)
Tag and remove the four electrical leads (32) attached to the line switch (31). Retain mounting hardware.
(3)
Remove the two screws (33) attaching the line switch (31) to the switch plate (28).
(4)
Remove the line switch (31).
(5)
Tag the two leads (34) attached to the thermal protector (35). Remove the two leads from the thermal protector
(35).
(6)
Loosen the motor thru-bolts (36) enough to lift the thermal protector (35) retainer clips (37) out of the way. Do
not remove the motor thru-bolts (36) at this point.
(7)
Remove the thermal protector (35).
(8)
Place alignment marks on the motor frame (38)-to-pump housing (10) and motor frame (38)-to-motor casting
(29) for positioning of components during reassembly.
(9)
Remove the two motor thru-bolts (36), retainer clips (37) and lock washers (39) from motor frame (38).
The motor frame will usually separate from the motor casting as an assembly with the
armature held in the motor frame by the permanent magnets. The armature will resist
removal due to the permanent magnets. Remove the armature with a strong and steady
pull. Avoid damaging the armature. Do not get foreign material on the armature
commutator or the motor brushes.
(10)
Using a gear puller, separate the motor casting (29) from the pump housing (10). Remove the
armature (9). Inspect the armature (9) for damaged components.
5-14
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