Operation - Graco E Series Instructions-Parts List Manual

WARNING
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including
fluid injection, splashing fluid or solvent in the eyes
or on the skin, or injury from moving parts or electric
shock, always follow this procedure whenever you
shut off the sprayer, when checking or servicing
any part of the spray system, when installing,
cleaning or changing spray tips, and whenever you
stop spraying.
Turn the ONlOFF switch to OFF.
3. Disengage the gun safety latch. Hold a metal
part of the gun firmly to the side of a grounded
metal pail, and trigger the gun to relieve pres-
sure.
4. Engage the gun safety latch,
5.
Open the pressure drain valve, having a con-
tainer ready to catch the drainage. Leave the
valve open until you are ready to spray again.
that
lf you suspect the spray tip or hose is com-
that
pletely clogged, or pressure
around the tip guard retaining nut or hose end cou-
pling and VERY SLOWLY loosen the part to re-
lieve pressure gradually, then loosen completely.
Now clear the tip or hose.
Startup
Use this procedure each time you start the sDraver to
help ensure the sprayer is ready to operate and that you
start it safely.
NOTE: For the first time startup, be sure to flush the
sprayer first. See page
GUIDELINES.
1. Close the pressure drain valve. If you have not in-
stalled a secondary hose, be sure the nipple is firmly
2. Don't install the spray tip yet!
8
307-670

OPERATION

has
not been fully
for FLUSHING
11 & 12
3. Put the suction tube into the paint container.
4. Lower the pressure setting by turning the pressure
adjusting knob all the way counterclockwise. See Fig
9- 1.
5. Disengage the gun safety latch. See Fig
6. To prime the pump, hold a metal part of the gun
firmly against and aimed into a metal waste con-
See
tainer. Fig Squeeze the trigger and hold it
open, turn the ON/OFF switch to ON, and slowly in-
crease the pressure 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. Re-
lease the trigger and engage the gun safety latch.
NOTE: If the pump is hard to prime, place a container
under the pressure drain valve and open it.
When fluid comes from the valve, close it. Then
disengage the gun safety latch and proceed as in
Step 6, above.
7. Check all fluid connections for leaks. If any are
found, follow the Pressure Relief Procedure Warn-
ing, to the left, before tightening connections.
8. Install the Spray Tip and Tip Guard. Be sure the
gun safety latch is engaged. See Fig
spray tip. If using the RAC IV tip guard, refer to man-
structions.
9. Adjust the Spray Pattern
a. Increase the pressure adjusting knob setting just
until spray from the gun is completely atomized.
To avoid excessive overspray and fogging, and
to decrease tip wear and extend the life of the
sprayer, always use the lowest possible pres-
sure 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 latch
and loosen the retaining nut. Position the tip
guard horizontally for a horizontal pattern or ver-
taining nut.
i
i
9-3.
install the