TM 5-3825-270-10
OPERATOR MAINTENANCE
WATER PRESSURE LOW
INITIAL SETUP:
References
References (cont.)
Equipment Description and Data (WP 0002)
Discharge From Sprinkler Nozzles (WP 0016)
Discharge From Hose Reel Assembly (WP 0017)
Discharge From Water Turret Assembly
Equipment Condition
Engine On. (WP 0017)
TROUBLESHOOTING PROCEDURE
WATER PRESSURE LOW
STEP 1
Is water pressure low (more than 20% below normal) after ensuring proper operation of water distributor?
Refer to Equipment Description and Data (WP 0002) for normal pressure readings.
NOTE
Water pressure is directly proportional to engine speed. Any increase or decrease in engine
speed will effect the amount of water pressure at water stations.
1.
Start and run engine. (WP 0017)
NOTE
Engine speed should be a minimum of 1500 RPM when operating water stations.
2.
Verify all applicable valves for particular water station being used are closed or open completely:
Gravity sprinkler bar (WP 0013)
Water turret assembly (WP 0015)
Sprinkler Nozzles (WP 0016)
Hose reel assembly (WP 0017)
CONDITION/INDICATION
Is water pressure low (more than 20% below normal) after ensuring proper operation of water distributor? Refer
to Equipment Description and Data (WP 0002) for normal pressure readings.
DECISION
No - Problem solved.
Yes - Problem not found. Notify maintenance personnel of low water pressure.
END OF WORK PACKAGE
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