TM 10-4610-241-24
TO 40W4-13-42
3-12.
CENTRIFUGAL PUMP (RAW WATER PUMP) REPAIR - continued.
b.
Cleaning.
WARNING
Drycleaning solvent, P-D-680, C1 II, is highly toxic and can ignite
organic materials, nitrates, carbides, and chlorates. Wear eye, skin,
and respiratory protection. Use in a well-ventilated area.
Compressed air can blow dust into the eyes. Wear eye protection.
Do not exceed 30 psi (207 kPa) air pressure.
(1)
Clean pump case (3) and adapter (20) with drycleaning solvent. Dry with compressed air.
(2)
Using a stiff-bristled brush, remove rust and corrosion from pump case (3) and adapter (20).
(3)
Wash all internal surfaces with clear water and detergent.
c.
Inspection.
(1)
Inspect attaching hardware for damage.
(2)
Inspect impeller (10), diffuser (5), slinger (23), bracket (17), case (3), and adapter (20) for cracks and
serviceability.
d.
Repair.
(1)
Replace all lockwashers, seals, gaskets and preformed packing.
(2)
Replace defective components.
e.
Assembly.
CAUTION
Incorrect installation of disks (21 and 14) will
result in leaking pump. Be sure smooth, flat
side of disk points away from motor when
installed.
(1)
Lubricate cup (22) and install ceramic disk
(21) on cup. Position cup and disk in
adapter (20).
(2)
Position slinger (23) on shaft of motor (24)
and install adapter (20) with screws (18)
and lockwashers (19).
3-126
