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TM 10-4930-250-13&P
(11)
Separatethemotorframe(38)andmotorcasting(29)usingaballpeenhammerto gentlytaparoundthe
perimeter of the motor casting (29).
NOTE
The brush holders and electrical leads are not interchangeable. Ensure they are marked for
correct reassembly. Note installed position of each brush holder relative to the motor
casting.
(12)
Remove the screw (40) and fiber washer (41) attaching each brush holder (42) to the motor casting (29).
(13)
Inspect the brushes (43) and brush holders (42) for damage or deterioration. Replace as required.
(14)
Remove screws (44) to remove junction box cover (45) if accessto internal wiring is required.
d.
Electrical Assembly.
(1)
If removed, position junction box cover (45) and attach using screws (44).
(2)
Position brushes (43) in brush holders (42) and attach brush holders to motor casting (29) using screw (40) and
fiber washer (41).
NOTE
It is not necessary to fully seatthe motor frame in the motor casting at this point. Slip the
two components together sufficiently
to hold together. The two components will seat fully
when the motor thru-bolts are installed.
(3)
While observing the alignment markings applied during disassembly, slip motor frame (38) into motor casting
(29).
When installing the armature in the motor frame and motor casting, the strong permanent
magnets in the motor frame will tend to pull the armature off center. Exercise caution
during installation in order to prevent damage to the armature and brushes. Install the
armature in small increments, continuously pushing the brushes back into the brush
holders as the armature is being installed until the brushes are fully supported by the
commutator.
(4)
Install the armature (9) in the motor frame (38) and motor casting (29) while guiding the armature commutator
over the brushes (43) and into the motor casting (29). Seat the armature bearing in the motor casting (29).
(5)
Install the lock washers (39) and retainer clips (37) on thru-bolts (36) and start the two thru-bolts (36).
(6)
Position and seat by hand the pump housing (10) on the motor frame (38).
(7)
Position the thermal protector (35) in the notches of the motor casting (29). Secure in place with the retainer
clips (37). Evenly tighten the thru-bolts (36) securing the thermal protector (35) and retainer clips (37), pulling
the pump housing (10) and motor casting (29) together. Do not over tighten the thru-bolts (36).
(8)
Install shaft seal assembly (7) and snap ring (8) in accordance with paragraph b. steps 9 and 10.
5-15
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