Table 4-14. Water Closet Assembly Troubleshooting

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Table 4-13. Milk Dispenser Troubleshooting - continued

TM-55-1905-220-14-8 Landing Craft Utility LCU 1671-1679 NSN 1905-01-009-1056 Manual

Table 4-14. Water Closet Assembly Troubleshooting - continued

TM 55-1905-220-14-8

4-5. GENERAL (Continued).

Table 4-14. Water Closet Assembly Troubleshooting.

NOTE

Refer to paragraph 4-15 for maintenance instructions.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Water closet will not flush.

Step 1. No vacuum or vacuum supply too low.

Check vacuum gage at collection tank.

Step 2. Check valve malfunction.

See Trouble under Check Valve Assembly.

Step 3. Activation valve malfunction.

See Trouble under Activation Valve Assembly.

Step 4. Gravity timer valve malfunction.

See Trouble Gravity Timer Valve.

Step 5. Vacuum dispensing valve malfunction.

See Trouble under Dispensing Valve Assembly.

Step 6. Sewage discharge valve malfunction.

See Trouble under Sewage Discharge Valve.

2. Water closet flushes but no water.

Step 1. Water supply line turned off.

Turn on valve.

Step 2. Water dispensing valve malfunction.

See Trouble under Water Dispensing Valve.

Step 3. Water dispensing valve water line disconnected.

Re-connect water line.

Step 4. Spray ring clogged.

Replace.

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