TM 10-4610-232-12
Table 3-1. Operator Troubleshooting Guide (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
UNUSUAL NOISE.
Step 1.
Check media filter air blanket level indicator.
If all the flags on the level indicator are white or orange there is a possibility that the air blanket is working
improperly, troubleshoot media filter air system. Refer to high pressure pump start-up (para. 2-17 (3)) to
restart pump.
Step 2.
Check for air in system.
Run raw water and booster pumps, without the high pressure pump on, until air is out of system.
Step 3.
Check all components of unit to locate noise.
Step 4.
Notify unit maintenance.
PRODUCT HIGH PRESSURE SWITCH.
1. PRODUCT PRESSURE HIGH alarm light and horn stay on.
Step 1.
Check product shut-off valve.
Open valve.
Step 2.
Check SYSTEM RESET.
Push reset
Step 3.
Check product out hoses for bends.
Straighten hose.
Step 4.
Check that product out hose dust plug is removed.
Remove plug.
Step 5.
Notify unit maintenance.
2. Product high pressure alarm comes on below 35 psig(138 kPa) or is not on at 45 psig(172 kPa).
Step 1.
Notify unit maintenance.
NBC FILTER.
1. NBC filter assembly leaks.
Step 1.
Check cover seal.
Clean seal and seal area.
Step 2.
Notify unit maintenance.
2. Product water from NBC filter is greater than 2 ppm (feedwater 1500 ppm max.)
Step 1.
Replace NBC media.
Refer to para. 2-33.
3. NBC media in distribution water tanks.
Step 1.
Do not dispense water.
Notify unit maintenance.
Step 2.
Notify medical personnel.
Tanks and water will have to be cleared before dispensing.
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