5
308-807
Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or dispensing accidentally. Fluid
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
D
are instructed to relieve the pressure,
D
stop dispensing,
D
check or service any of the system equipment,
D
or install or clean the nozzle.
1.
Fully release the gun trigger. Press the red button
to lock the trigger safety. See Fig. 1.
2.
Shut off the fluid supply pump.
3.
Hold a metal part of the gun firmly to the side of a
grounded metal pail. Press the silver button to
unlock the trigger safety. Trigger the gun to relieve
pressure.
4.
Open the pump drain valve to help relieve pres-
sure in the pump, hose, and gun. Triggering the
gun to relieve pressure may not be sufficient. Have
a container ready to catch the drainage.
5.
Leave the drain valve open until you are ready to
dispense again.
6.
Fully release the gun trigger and lock the trigger
safety.
Flow Rate Adjustment
WARNING
To reduce the risk of serious injury, whenever the
gun is not in use, press the red button to lock the
trigger safety. See Fig. 1.
Fig. 1
Trigger Safety
Locked
Trigger Safety
Unlocked
7901
To dispense material, unlock the trigger safety, then
fully squeeze the trigger. Flow begins with the slightest
pressure and continues until the trigger is released.
NOTE: A minimum of 1 pint (0.5 liters) of material
must be dispensed from the gun to remove all air from
the system. If the air is not completely removed, slow
shutoff may occur.
Adjust the pump to the minimum speed necessary to
deliver the material at a satisfactory rate, or adjust the
fluid/mastic regulator.
Lubrication and Care
Keep the gun clean, and oil the exposed portion of the
needle with a light, high grade machine oil daily.
