7
4. OPERATING
PRECAUTIONS
Installing pump
The fire pump must be installed on a level ground. Otherwise,
an accident may occur. If the fire pump should be installed on
an uneven ground, it
must be secured.
Place the pump as near as possible to water source, and water
suction height as low as possible.
When lowering the portable fire pump to the ground, lower it
gently and horizontally.
In case of the inclined location or uneven ground, make sure that
the water suction hose is lower than the suction port of the pump.
In case of the suction hose is put undulated, air can be left easily in
the hose, and possibly causes suction inability when the water
discharge valve is opened. In this case, set the water discharge
valve half-opened, and operate vacuum pump until water is
discharged continuously (for 3 to 5 seconds from beginning of
water discharge).
Be sure to install strainer and basket on the end of suction hose. If
the pump may suck sand or mud on the bottom of water source,
place sheet below the basket.
Put the tip of the hose into the water more than 30cm
(11.8in) deep from the surface to prevent air suction.
Discharge hose should be arranged not to be bent.
CAUTION
NOTE
