TM 5-4610-223-12
Table 3-2. Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
WATER PURIFICATION UNIT-Cont
15. SPEED REDUCERS RUN NOISY OR WILL NOT RUN.
Lack of oil or improper grade of oil.
Lubricate in accordance with para 3-2.
16. DIATOMITE FILTER WILL NOT HOLD PRESSURE.
Defective filter elements.
Replace the filter elements (para 3-46).
17. FILTER GAGES SHOW INCORRECT OR NO READING.
Step 1.
Filter elements clogged. Remove and clean the elements (para 3-46 d.).
Step 2.
Insufficient water. (Refer to Malfunction 9).
18. RAW WATER PRESSURE GAGE AND FLOW INDICATOR SHOW INCORRECT OR NO READING.
Manifold valves closed.
Open the gate valves (1, fig. 4-74).
19. PLUG VALVES LEAK OR DRAW AIR.
Lack of lubrication.
Lubricate in accordance with paragraph 3-2.
PERSONNEL HEATER
20. HUNTER HEATER DELIVERS LITTLE OR NO HEAT . (Refer to TM 5-4520-227-14 for heater model UH-68-4 and
TM 5-4520-233-14 for UH-68-D and UH-68-E models.
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