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TM 55-1905-220-14-8
4-5. GENERAL (Continued).
Table 4-18. Water Closet Vacuum Dispensing Valve
Troubleshooting.
NOTE
Refer to paragraph 4-15 for maintenance instructions.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Vacuum dispensing valve will not activate.
Step 1. No supply or low vacuum.
Check vacuum pressure gage at collection tank.
Step 2. Ruptured diaphragm.
Replace valve tank.
Step 3. Not receiving vacuum from gravity timer.
See Gravity Timer Troubleshooting guide.
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