TM 5-4320-274-14&P
b. Remove setscrew (15), nut (16), and washer (17) from the pump body.
c. Remove adapter (18), elbow (19), nipple (20), and peeler (21) from the pump body.
d. Remove adapter (22) from flange (25). Re- move two nuts (23) and washers (24), and separate flange (25)
from the pump body.
e. Remove screw (26) and separate weights (27 and 28) from check valve gasket (29).
CAUTION
Do not pry with a sharp instrument as gasket may be damaged.
f. Remove draincock (39), studs (31), and plug (32) from the pump body (33).
6-3. Pump Cleaning and Inspection
a. Clean pump body with pressurized water, spraying interior and exterior. Allow to dry thoroughly.
WARNING
Dry cleaning solvent, Specification P-D-680, used to clean parts is potentially dangerous
to personnel and property. Avoid repeated and pro- longed skin contact. Do not use
near open flame or excessive heat. Flash point of solvent is 100 . (38 .).
F
C
b. Clean pump components thoroughly. Use dry cleaning solvent, Specification P-D-680, on metal parts. Dry
components thoroughly.
6-4. Pump Reassembly
a. Refer to figure 6-1 and install the plug (32), studs (31) and draincock (30) on the pump body (33).
b. Position gasket (29) so that hinge end is up. Make sure that large weight (27) is on pump side of the gasket.
With small weight (28) positioned on the opposite side of the gasket, install the check valve gasket with screw (26).
c. Install flange (25) on pump body and secure with washers (24) and nuts (23). Install adapter (22) on the flange.
d. Install peeler (21), nipple (20), elbow (19) and adapter (18) on the pump body.
e. Position identification plate on the pump cover plate (2) and secure with screws. The remaining components will
be assembled when the pump is installed.
6-5. Pump Installation
a. Refer to figure 4-3 and position the pump body on the electric motor. Secure with the three pump mounting bolts
and washers. Install remaining half of seal assembly, and the shaft adapter, on the motor shaft using the motor shaft
key.
b. Position wear plate on pump and secure with the wear plate retaining screws. Install shims as required to
maintain wear plate-to-impeller clearance of 0.010 to 0.015 in.
c. Loosen peeler adjustment setscrew. Position impeller on shaft adapter with adapter key. Adjust setscrew to
obtain peeler-to-impeller clearance of 0.005 to 0.015 inches. Secure impeller cap screw and washer.
d. Position cover plate on pump body and secure with the cover plate shoulder bolts.
6-6. Pump Test
a. Install the unit in accordance with paragraph 4-3 being certain the suction and discharge hoses and fittings are of
the same nominal size as the suction and discharge ports of the pump. b. Under the above conditions the pump shall
perform as follows:
(1) Prime in not more than 133 seconds.
(2) Deliver not less than 58.5 gpm at a total head of 45 feet.
(3) Deliver not less than 45 gpm at a total head of 63 feet.
Section II. ELECTRIC MOTOR ASSEMBLY
6-7. Motor Removal
c. Refer to figure 4-4 and remove the four nuts, washers, and screws securing the motor to the frame.
6-8. Motor Disassembly
6-3
