TM 5-3825-270-10
OPERATOR MAINTENANCE
EXCESSIVE PUMP NOISE
INITIAL SETUP:
References
Equipment Condition
General Information (WP 0001)
Engine OFF. (WP 0017)
Discharge From Hose Reel Assembly (WP 0017)
TROUBLESHOOTING PROCEDURE
EXCESSIVE PUMP NOISE
STEP 1
Is water distributor operated within proper operator guidelines?
NOTE
The water pump is mechanically linked to the engine. Engine overspeed or excessive
rpm may cause water pump to operate at high revolutions causing excessive noise.
When water level falls to 300 gallons (1,136 liters) or less, excessive water pump noise
may occur.
1.
Start engine. (WP 0017)
CAUTION
Ensure not to operate water pump when water level falls below 300 gallons (1,136 liters).
Water pump cavitation may occur. Failure to do so may result in damage to equipment.
2.
Refer to operator instructions and control panel spray placard to ensure proper operating procedures are
adhered to.
3.
It may be necessary to partially open valve V5 to relieve pressure in water pump housing and allow fluid to
circulate through water tank to lower pump noise.
0042-1
