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TM 5-4320-313-14
5-4. PUMP ASSEMBLY - Continued.
e. Reassembly. (Refer to figure 5-2).
(I) Install key (1) and shaft (2).
(2) Install backhead (3) and secure with four screws (4). Install new packing (5).
Install rubber seat and stationary ring (polished side out) into recess. Install the rest of the seal assembly
so carbon face runs against polished side of stationary ring.
(3) Install seal (6), key (7), shim (8), and impeller assembly (9). Secure impeller (9) to shaft (2) with flat washer (10)
and screw (I 1).
(4) Use a feeler gauge, measure between the impeller face and backhead. A distance of.03 to.09 inch (7.62 to 22.86
cm) must be maintained. Use shims (8) as required.
(5) Install diffuser assembly (12) on impeller assembly (9).
(6) Install housing (13) on backhead (3) and secure with eight screws (14).
(7) Apply sealing compound to threads of items (15) thru (19). Install connectors ( 15 and 16) and plugs ( 17 and 18).
(8) Install two screws (19), two lockwashers (20), and two nuts (21). Tighten nuts (21).
Change 3 5-8
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