TM 5-3825-270-23&P
FIELD MAINTENANCE
WATER SPRINKLER HEAD PRESSURE LOW
INITIAL SETUP:
Tools and Special Tools
References (cont.)
Tool Kit, General Mechanic's: Automotive
Flusher Nozzle And Air Actuator Replacement
(WP 0225, Table 1, Item 12)
Water Distributor Operator Manual (TM
5-3825-270-10)
References
Air Line Lubricator Replacement (WP 0169)
Air Hose Replacement (WP 0171)
Equipment Condition
Air Valve Cover Plate Replacement (WP 0164)
Engine OFF. (TM 5-3825-270-10)
TROUBLESHOOTING PROCEDURE
WATER SPRINKLER HEAD PRESSURE LOW
STEP 1
Are one or both water sprinkler pressures low?
NOTE
When valve V5 is open, water sprinklers may have lower pressure than when fully closed.
Operate water sprinklers. (TM 5-3825-270-10)
CONDITION/INDICATION
Are one or both water sprinkler pressures low?
DECISION
Both low - Go to step 2. (Step 2 - Is prime mover air supply functioning properly?)
One low - Go to step 4. (Step 4 - Is sprinkler head damaged or restricted?)
STEP 2
Is prime mover air supply functioning properly?
Refer to prime mover manual and ensure air supply is functioning properly. (TM 9-2320-319-10)
CONDITION/INDICATION
Is prime mover air supply functioning properly?
DECISION
No - Replace prime mover. Verify problem is solved. (Step 6 - Is water sprinkler pressure normal?)
Yes - Go to step 3. (Step 3 - Are air hoses and fittings free of leaks and damage?)
STEP 3
Are air hoses and fittings free of leaks and damage?
Visually inspect air hoses and fittings for leaks and damage.
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