Graco 980 Instructions Manual page 14

Flushing the Spray Gun Using a Remote
Pressure Pot
WARNING
The spray gun cups and accessory remote pres-
sure pots remain pressurized until pressure is
manually relieved. To reduce the risk of serious
injury from pressurized fluid or accidental spray
from the gun, always relieve pressure in the cup or
pressure pot before you check or service any part
of the spray system; before you install, clean or
change fluid nozzles; before you loosen or remove
the accessory remote pressure pot cover; and
whenever you stop spraying.
NOTES:
D Check for any fluid leakage from gun and fluid
hoses. Tighten fittings or replace equipment as
needed.
D Flush gun before you change colors and when you
are finished spraying.
CAUTION
Clean all parts with a solvent compatible with the
fluid being sprayed and compatible with the spray
gun and cup or accessory remote pressure pot
wetted parts. See Technical Data on page 25.
1. Turn off air supply to gun.
2. Relieve pressure pot pressure as follows:
a. Turn off air supply to pressure pot.
1
b. 2 / -gallon remote pressure pot:
2
Pull pressure relief valve ring (206c) until
pressure is completely relieved.
2-quart remote pressure pot:
Turn out pressure relief knob (113) about one
turn. Wait until pressure is completely relieved
before removing cover. Close knob. See
Fig. 12.
3. Fill pressure pot with compatible solvent.
4. Flush spray gun, using compressor air only. Point
gun down into container and flush until solvent
runs clean.
14 308810
Maintenance
5. Relieve pressure pot pressure, following steps 2.a
and b, above.
6. Disconnect air and fluid hoses from gun.
7. Clean and lubricate gun as instructed starting on
page 15.
Flushing the Spray Gun and Cup
1. Turn off air supply to gun.
2. Unlatch cup cover, and remove cup from cover.
3. Turn air cap to round pattern position. Turn air
control valve half open to reduce solvent mist. See
Fig. 14.
Fig. 14
4. Fill empty cup with about 1
compatible solvent, and reinstall cup. Be sure
cover is secured.
5. Turn on air to gun.
6. Point gun down into and ground against container
and flush until solvent runs clean. See Fig. 15.
Fig. 15
7. Turn off air to gun.
8. Disconnect air supply and remove cup from gun.
Clean and lubricate gun as instructed on pages 15
and 16.
air cap round
pattern position
02847
1/
inches (38 mm) of
2
8073B