33
PRIME AND DISCHARGE
Start the Relay pump
1. Make sure that the discharge valve is opened and wait for supplied water.
2. Check that the water was supplied from the source pump. At first, the hose swells
due to air pressure. Step on a hose to judge whether the swelling of the hose is
due to water or air.
3. Confirm that the water is supplied to the pump, read a pressure gauge.
Start the engine if the pressure is lower than the required pressure. If the pressure
is high enough, no need to start the engine.
4. Adjust the discharge pressure with throttle dial. The suction pressure decreases
with opening up the throttle. Always confirm the pressure with the suction pressure
gauge.
5. If the suction pressure drops below 0.1MPa (15psi), order the operator of the
pre-stage pump to increase the water pressure, and adjust the relay pump
pressure by the throttle.
6. If suction pressure rises, adjust the throttle again.
Start the Attack pump
Same as the relay pump.
Finish the relay pumping operations.
1. Do not close the fire nozzle.
2. Stop the attack pump running first.
3. Stop the relay pump running from the pump near the nozzle.
4. Finally, stop the source pump.
Do not touch the exhaust pipe and the muffler
while the engine is running, and also do not
touch it for 10 minutes more after the engine
has been stopped. These parts are very hot
and will cause severe burns.
8
１
１
２２
３３
４４
５５
６６
７７
８８
９
９
10
10
1111
1212
13
14
15
16
17
18
13
14
15
16
17
18
To Next Page
