308-664
5
Installation/Operation
System Requirements
WARNING
Keep the wallet-sized warning card provided with
this gun with the operator at all times. The card
contains important treatment information should an
injection injury occur. Additional cards are available
at no charge from Graco Inc.
WARNING
Be sure your system has a bleed-type master air
valve (pneumatic pumps only) and a pressure drain
valve. These accessories help reduce the risk of
serious bodily injury, including fluid injection,
splashing in the eyes or on the skin, or injury from
moving parts, if you are adjusting or repairing the
pump or gun.
1. The bleed-type master air valve (air-powered
pumps only) relieves air trapped between this
valve and the pump after the air regulator is shut
off. Trapped air can cause the pump to cycle
unexpectedly.
2. The pressure drain valve assists in relieving fluid
pressure in the displacement pump, hose and gun:
triggering the gun to relieve pressure may not be
sufficient.
3. Strain the fluid you are spraying if it contains
particles which could clog the spray tip.
Grounding
To reduce the risk of static sparking, ground the spray-
er and all other spray equipment used or located in the
spray area. Check your local electrical code for de-
tailed grounding instructions for your area and type of
equipment.
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying 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:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tip.
Pressure Relief Procedure
1. Engage the gun safety latch.
2. Turn the ON/OFF switch to OFF.
3. Unplug the power supply cord.
4. Disengage the gun safety latch. Hold a metal part
of the gun firmly to a grounded metal pail. Trigger
the gun to relieve pressure.
5. Engage the gun safety latch.
6. Open the system pressure drain valve. Leave the
pressure drain valve open until you are ready to
spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, VERY SLOWLY loos-
en the tip guard retaining nut or hose end coupling to
relieve pressure gradually, then loosen completely.
Now clear the tip or hose obstruction.
How to Use the Gun Trigger Safety
1. To engage the gun trigger safety, turn the latch
counterclockwise toward the handle until the
detent of the latch locks on and the pin is at a right
angle with the gun body. See Fig. 1.
2. To disengage the gun trigger safety, turn the latch
clockwise away from the handle to unlock the
detent of the latch and turn the pin 180
from the
gun body.
Fig. 1
ENGAGED
DISENGAGED
05964
PIN
LATCH
