Flush Storage Fluid - Graco Project Painter Plus Owner's Manual

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6. Engage the trigger lock.
7. If you suspect the spray tip or hose is
clogged or that pressure has not been
fully relieved:
a. VERY SLOWLY loosen the tip
guard retaining nut or the hose end
coupling to relieve pressure
gradually.
b. Loosen the nut or coupling
completely.
c. Clear airless hose or spray tip
obstruction. See Clear Tip Clog,
page 16.

Flush Storage Fluid

This sprayer arrives from the factory with a
small amount of test material in the system. It
is important that you flush this material
from the sprayer before using it for the first
time. See Cleaning Fluid Compatibility,
page 24 and Static Grounding Instructions
(Oil-Based materials), page 24 for additional
information when using oil-based materials.
1. Perform Pressure Relief Procedure,
page 11.
2. Make certain ON/OFF switch is OFF.
3. Separate drain tube (smaller) from suc-
tion tube (larger).
4. Place drain tube in a waste pail.
5. Submerge suction tube in a pail par-
tially filled with water or flushing fluid.
If spraying oil-based materials, sub-
merge the suction tube in mineral spir-
its, or compatible cleaning solvent. If
spraying water-based materials, sub-
merge the suction tube in water.
12
6. Lift Prime/Spray valve to PRIME posi-
tion.
7. Plug power supply cord into a properly
grounded electrical outlet.
8. Align setting indicator with Prime/Clean
setting on pressure control knob.
9. Turn ON/OFF switch to ON position.
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