Operation - Graco 223-773 A Series Instructions And Parts List

WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 10.
Startup (Fig. 2)
Always use this procedure to help ensure the sprayer
is ready to operate and that you start it safely.
1. For a first time startup, flush the sprayer. See
page 9.
2. Close the pressure drain valve (50).
3. Don't install the spray tip and tip guard until
the pump is primed!
4. Put the suction tube (42) into the paint con-
tainer.
5. Lower the pressure setting by turning the pres-
sure adjusting knob (B) fully counterclockwise.
6. Disengage the gun safety latch. See Fig 3.
Gun safety latch
shown engaged
Gun safety latch
shown disengaged
Fig. 3

Operation

Do not run the sprayer dry for more than 30 sec-
onds to avoid damaging the pump packings.
7. To prime the pump:
a. Open the drain valve.
b. Turn the ON/OFF (C) switch to ON.
c. Slowly increase the pressure setting until the
sprayer starts.
d. When fluid is flowing from the valve, turn down
the pressure and close the valve.
e. Hold a metal part of the gun firmly against a
grounded metal waste container. See Fig. 4.
Maintain firm
metal to metal
contact when
flushing
Fig. 4
f. Trigger the gun and slowly increase the pres-
sure setting until the sprayer starts. Keep the
gun triggered until all air is forced out of the
system and the paint flows freely from the gun.
g. Release the trigger and engage the gun safety
latch. See Fig 3.
8. Check all fluid connections for leaks. If any
leaks are found, relieve pressure before tightening
the connections.
CAUTION