Pierce Pumper, Руководство по эксплуатации и техническому обслуживанию

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OPERATION
3-30 / Pierce Pumper
© 2019 Pierce Manufacturing Inc. All Rights Reserved.
3-12. Refilling the Tank
ALWAYS refill water tank as soon as possible. If the supply source is interrupted, a full tank of water allows you to
continue flowing water to the attack lines while an external water source is being restored.
1. Open tank fill valve.
OPEN the tank fill valve slowly to ¼ OPEN to divert some supply water into the water tank.
2. Watch intake and discharge pressure.
Watch the discharge pressure gauges to make sure that you maintain attack hose flow at the desired pressure
while you also fill the water tank.
If intake or discharge pressure drops below the desired pressure, either CLOSE the Tank Fill Valve to divert less
water to the tank OR increase engine speed to maintain pressure.
Always keep the water tank full so that a steady discharge flow can be maintained if the intake supply must be
shifted.
3-13. Pump Priming Problem Solutions
3-13.1 Control Valves That Leak
1. Cap unused discharge and intake pipes.
Cap all unused discharge and intake pipes to reduce air leakage from a leaky valve.
Do not exceed the specified inlet pressure and/or maximum fill rate.
Maximum Fill Rate = 1,000 GPM (3,800 LPM) or the tank’s capacity in GPM (LPM) (500 Gallon tank = 500
GPM) whichever is less.
Maximum inlet pressure for tank filling is 100 psi (7 bar).
Gate back flow into tank before reaching full level. Continue filling at a rate which allows excess water
to be completely evacuated by the overflow pipe. Do not allow water to spill from the tank fill tower.
Failure to comply may cause over-pressurization of the tank and tank failure, which may result in
severe personal injury or death.