3
Water System Operation
and Maintenance Manual
Handgun Operation
1. Position the water pump control valve and the hose reel control valve on the front of the hose
reel in the
OFF
position.
2. Start the auxiliary and run at idle speed.
3. Remove the quick disconnect plug from the handgun connection.
4. Connect the female end of the handgun hose to the handgun, and connect the male end of the handgun hose
to the handgun connection on the main frame.
5. Make sure the handgun trigger is in the
OFF
position.
6. To pressurize the handgun, turn
ON
the handgun system ball valve located on the front bumper curb side.
7. Turn the bottom pump control valve on the front of the hose reel to the
ON
position.
8. The pressure of the handgun system is set at 650 PSI at auxiliary engine idle speed.
NOTE:
NEVER
run the truck engine over idle speed while operating the handgun.
9. To depressurize the handgun system, turn
OFF
the bottom pump control valve first, then turn
OFF
the
handgun ball valve.
SAFETY NOTE:
NEVER
point the handgun at, or in the direction of another person while it is
pressurized or personal injury could occur.
