TM 10-4510-207-14
5.3. DIAPHRAGM (DRAIN) PUMP ASSEMBLY REPAIR. - CONTINUED
(9) Remove four screws (27), lock washers (28), and plate (29). Discard lick washers.
(10) Remove four nuts (30), lock washers (31), screws (32), and two legs (33). Discard lock washers.
(11) Replace any damaged or missing components.
b. Assembly.
(1) Check that any damaged or missing components have been replaced.
(2) Position two legs (33) under frame (34) and align mounting holes. Secure unsung four screws (32),
new lock washers (31), and nuts (30).
(3) Place plate (29) on frame (34). Align mounting holes and secure using four new lock washers (28)
and screws (27).
(4) Place motor (26) on plate (29). Align mounting holes and secure using four new lock washers (25)
and screws (24).
(5) Install key (23) onto motor (26) shaft then install eccentric disk (22).
(6) Install grease fitting (21) and cap (20).
(7) Place eccentric housing (19) over eccentric disk (22) then secure using snap ring (13).
(8) Assemble support plate (17) and diaphragm (18) then align mounting holes with eccentric housing
(19) and secure using two new sealing washers (16), new lock washers (15) and screws (14). Be sure
diaphragm is under frame (34).
(9) Assemble suction chamber (11) and check valve assembly (12) then place against pump base (4).
Align mounting holes and secure using four screws (10) and nuts (9).
NOTE
Be sure to orient check valve assembly and discharge chamber as noted during
disassembly. Large counterweight (large metal plate) on check valve
assembly faces discharge flow direction.
(10) Assemble discharge chamber (7) and check valve assembly (8) then place against base (4). Align
mounting holes and secure using four screws (6) and nuts (5).
(11) Place pump base (4) under frame (34) with diaphragm (18) between base and frame. Align
mounting holes and secure using four screws (3), new lock washers (2), and nuts (1). Be sure
diaphragm is not pinched.
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