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TM 55-2915-335-30&P
2-18. ARMATURE AND FIELD TUBE ASSEMBLY- lNSPECT/REPLACE (Cont)
2-18
2. REMOVE ARMATURE AND IMPELLER
a. Insert a small sharp screwdriver (5) behind brush (6) shunt lead. While applying pressure gently against brush
(6), pry brush out of holder (7) slot until spring tang (8) rests against side of brush (6) to hold it in place.
b. With spring (8) held back, slide brush (6) halfway out of brush slot.
c. With brush (6) halfway out of brush slot, let spring (8) rest against exposed side of brush. Be careful not to
bump brush when handling.
d. Repeat procedure for opposite brush.
NOTE
Early model cartridges use a square key in the armature shaft to
drive the impeller. If your cartridge is a key-drive type, be sure not to
lose square key.
e. Lift armature (2) straight up out of pump end bearing bore. Be careful not to lose washers (9 and 10), located
at both ends of armature.
NOTE
Lower thrust washer may remain on lower bearing. Make sure you
locate and remove lower thrust washer.
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