Operation - Graco A Series Instructions-Parts List Manual

OPERATION
WARNING
Pressure Rellef Procedure
cluding fluid injection or splashing in the eyes or on
To reduce the risk of serious bodily injury, in-
the skin, or injury from moving parts or electric
shock, always follow this procedure whenever you
any part of the spray system, when installing,
shut off the sprayer, when checking or servicing
cleaning or changing spray tips, and whenever you
stop spraying.
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.
5. Hold a metal part of the gun firmly to the side of
e metal pail, and trigger the gun to mlieve
6. Engage the gun safety latch.
pressure.
7. Open the pressure relief valve, having a con-
8. Leave the pressure relief valve open until you
tainer ready to catch the drainage.
are ready to operate the sprayer again.
plete4 clogged, or that pressure has not been fulk
if you suspect that the spray tip or hose is com-
relieved after following the steps above,
VERY
SLOWLY loosen the tip guard retaining nut or
hose end coupling and relieve pressure gradually.
Then loosen the nut completely. Now clear the
tip
or hose obstruction.
1. Prime the Sprayer wlth Pelnt.
a. Close the filter's pressure relief valve. See Fig 1.
b. Don't install the spray tip yet1
c. Put the suction tube into the paint container.
d. Turn the pressure adjusting knob all the way
counterclockwise to lower the pressure setting.
e.
Disengage the gun safety latch.
f. Hold a metal part of the gun firmly against and
aimed into a metal waste container. See Fig 4.
ON/OFF switch
to
ON, and slowly increase
the
Squeeze the trigger and hold it open, turn the
pressure setting until the sprayer starts. This
procedure reduces the risk of
static
electric
discharge and splashing. Keep the gun trig-
gered until all air is forced out of the system and
the paint flows freely from the gun. Release the
trigger and engage the safety.
NOTE:
If the pump is hard to prime, place e con-
tainer under the pressure r e l i e f valve and
open it. When fluid comes from the valve,
close
it.
Then disengage the gun safety
latch and proceed as in Step If, above.
g. Check
all
fluid connections for leaks. If any are
found, follow the Pressure Relief Procedure
Warnlng, above, then tighten connections.
2.
Install the Spray Tip end
Tip
Guard
(Refer to Fig 5.1
a. Be sure the gun safety latch is engaged.
METALTO METAL
MAINTAIN FIRM
GUN AND CONTAINER
CONTACT BETWEEN
Fig 4
IS ENGAGED1
BE SURE GUN SAFETY LATCH
TIGHTEN SNUGGED
RETAINER NUTlI8TO
l/BTURN WITHWRENCH
Fig 5
c. Install the Reverse-A-ClesnTM 111 spray housing
with tip installed. See the RAC 111 packaging
label for instructions.
d. Tighten the retaining nut by hand until snug.
e. Use a wrench to tighten the retaining nut about
r " c A u T ~ o N
1
1/0 to 1 /6 turn.
Overtightening the retaining nut will damage the
seat gasket and result in leakage.
~~~ ~~ ~~~
3.
Adjustlng the Spray Pattern
_ _ ~
~
a.
Increase the pressure adjusting knob setting
just until spray from the gun is completely
atomized. To avoid excessive oversprey and
fogging, and to decrease tip wear and extend
the life of the sprayer, always use the lowest
possible pressure needed
to
get the desired
results.
b. If more coverage is needed, use a larger tip
rather than increasing the pressure.
c. Test the spray pattern. To adjust the direction
of the spray pattern, engage the gun safety
tiD
so the aroove is horizontal for e horizontal
latch and loosen the retaining nut. Position the
b. Unscrew the tip guard retaining nut from the pattern or ;erticel for a vertical pattem.-Then
gun. tighten the retaining nut.