DRAIN FITTING ASSEMBLY LEAKS.

TM 5-5430-226-12

Table 4-1. Unit Troubleshooting - cont.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 2. Check for loose or missing bolts on water tank flanged male coupling half.

Replace missing bolts and washers.

Torque loose bolts to value specified on water tank.

Step 3. Check for loose or missing bolts on closure plate compression fitting.

Replace missing bolts and washers.

Torque loose bolts to 30 inch-pounds. On tanks manufactured by Amfuel Company, torque bolts

to 40-60 inch-pounds.

Step 4. Remove water tank flanged male coupling half from closure plate (para. 4-15). Inspect flange gasket

for cuts, tears and distortion.

Replace gasket.

Step 5. Remove closure plate from water tank (para. 4-15). Inspect plate for cracks. Inspect o-ring for cuts,

tears and distortion.

Replace closure plate and o-ring (para. 4-15), if damaged.

Step 6. Inspect water tank compression fitting for cuts, punctures, elongated holes and tears.

If compression fitting or tank fabric is damaged, replace water tank.

4. DRAIN FITTING ASSEMBLY LEAKS.

Step 1. Check for loose or missing bolts on drain fitting assembly.

Replace missing bolts and washers.

Torque loose bolts to 30 inch-pounds.

Step 2. Remove drain fitting from water tank (para. 4-16) and inspect for cracks. Inspect o-ring for cuts, tears,

and distortion.

Replace drain fitting, if damaged.

Replace o-ring, if damaged.

Step 3. Inspect water tank compression fitting for cuts, punctures, elongated holes and tears.

If compression fitting or tank fabric is damaged, replace water tank.

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