TM 10-6640-239-13 4-21 REPAIR 1. Repair Door Assembly.  See Figure 4-1. a. Remove screw (19) lockwasher (20), and washer (21) from each latch (22).  Discard lockwasher. b. Remove latch (22) and wave washer (23). c Install latch (22) and wave washer (23) and secure with screw (19), lockwasher (20), and washer (21). d. Remove two screws (24), nuts (25), lockwashers (26), washers (27) and clamp cover (28).  Discard lockwasher. e. Install clamp cover (28) and secure with two screws (24), nuts (25), lockwashers (26), and washers (27). f. Remove two screws (29), lockwashers (30), washers (31), latch keeper (32) and spacers (33).  Discard lockwasher. g. Remove two rivnuts (34) and spacer (33). h. Install spacer (33) and secure with two rivnuts (34). i. Install latch keeper (32) and spacers (33) and secure with two screws (29) lockwashers (30), and washers (31). 2. Repair Water Inlet Box a. Remove two ball studs (35) from rivnuts (36). b. Install ball studs (35) into rivnuts (36). INSTALL 1. Install water Inlet Box and Gasket.  See Figure 4-1. a. Install water inlet box (5) on Mod Lab B (6) and secure with 14 rivets (4). b. Install gasket (3) on water inlet box (5) and secure in place with adhesive. 2. Install Direction Valve. a. Install direction valve (18) on water inlet box (5) and secure with four screws (15), washers (17), and nuts (16). 3 Install Coupling Assembly. a. Install gasket (14) on coupling assembly (10) and secure with four screws (11), washers (13), and nuts (12). 4. Install Door Assembly. a. Install door assembly (2) over water inlet box (5) and align rivet holes. b. Install seven rivets (1) through door assembly (2), water inlet box (5), and into Mod Lab B (6). c. Latch door assembly (2). 5. Install Hose Adapters a. Attach retaining ring (7) with chain to hose adapters (8). b. Install Hose Adapters (8).