Startup - Graco A Series Instructions-Parts List Manual

Refer to the IMPORTANT note on page 6.
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 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.
Startup Procedure
Use this procedure each time you start the sprayer to
help ensure the sprayer is ready to operate and that
you start it safely.
Fig. 8

Startup

A
Open (drain) position
45
A
03034
NOTE: If this is a first–time startup, flush the sprayer.
See page 12.
NOTE: Refer to Fig. 10 and the other figures refer-
enced in the text as you start the sprayer.
1. Open the pressure drain valve (45). See Fig. 8.
2. Don't install the spray tip until the pump is primed!
3. Put the suction hose (32) into the paint.
4. Turn the pressure control (64) to minimum.
5. Disengage the gun safety latch. See Fig. 4, page
7.
CAUTION
To reduce the risk of damage to the displacement
pump packings, never run the pump without fluid in
it for more than 30 seconds.
6. To prime the pump, turn the sprayer switch (52)
on. Slowly increase the pressure until the sprayer
starts. When fluid comes from the pressure drain
valve, close the valve.
WARNING
FIRE AND EXPLOSION HAZARD
To reduce the risk of static sparking and
splashing when priming or flushing the
system, hold a metal part of the gun
firmly to the side of a grounded metal pail before
triggering the gun.
7. To prime the hose, lower the pressure to reduce
splashing. Hold a metal part of the gun firmly
against and aimed into the side of a grounded
metal pail. See the WARNING, above. Hold the
trigger open and slowly increase the pressure until
the pump starts. Keep the gun triggered until all air
is forced out of the system and the fluid flows
freely from the gun. Release the trigger and en-
gage the gun safety latch.
8. Check all fluid connections for leaks. Relieve
pressure before tightening any connections.
9. Install the spray tip. Engage the gun safety latch
first! Refer to your gun manual on how to install
the tip.