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 TM 55-1905-223-24-18-1
Troubleshooting - CONT
Table 2-2.
Malfunction
Test or Inspection
Corrective Action
BILGE/BALLAST AND FIREMAIN PIPING SYSTEM - CONT
STEP 10. Check valve jammed by foreign matter.
a. Remove valve (para. 2-329).
b. Inspect and clean as necessary.
c. Replace valve (para. 2-329).
STEP 11. Check for defective relief valve.
Isolate, repair or replace valve (para. 2-329).
STEP 12. Check for leakage in firemain connections.
Isolate, repair or replace connection.
STEP 13. Check for leaking valve at fire station.
L o c a t e station, isolate, repair or replace valve.
STEP 14. Check for defective fire pumps.
Refer to FIRE PUMP troubleshooting.
STEP 15. Check for malfunctioning pressure gauge.
a. Test the gauge as follows:
(1) Remove gauge from system (para. 2-335).
(2) Install a gauge of known accuracy to check system.
(3) Replace faulty gauge (para. 2-335).
STEP 16. Check for worn or defective bilge pump.
Refer to BILGE/BALLAST PUMP troubleshooting (TM 55-1905-223-24-13).
No discharge pressure.
218.
STEP 1. Check for closed suction valve.
Ensure suction valve is fully open.
STEP 2. Check for closed discharge valve.
Ensure discharge valve is fully open.
STEP 3. Pump not primed.
Prime pump.
STEP 4. Check for closed discharge pressure gauge cutout valve.
Open discharge pressure gauge cutout valve.
STEP 5. Check valve installed backwards or jammed.
a. Ensure check valve is installed in correct direction with stem in the
u p r i g h t position.
b. If valve is jammed, refer to Malfunction 219, STEP 9.
2-165
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