Graco Project Series Owner's Manual page 27

Problem
Sprayer sprays with poor
results
Paint leaks from sprayer
Paint leaks out of the cup
threads
3A9402B
Cause
Spray Tip is partially clogged
Spray Tip is not in correct position
Incorrect Spray Tip for application
of material
Driver output is too low
Spray Tip is worn or damaged
Material being sprayed is aerated
and full of bubbles
Material being sprayed is too cold
Pump has reached its maximum life Replace pump.
Cup not properly seated
Troubleshooting
Solution
See Clear Tip Clogs, page 20.
See Spray Tip Installation,
page 20.
Install a different size Spray Tip.
See Reversible Spray Tips,
page 19.
Drill Drivers should always be set
in the 'drill' setting. If necessary,
change to an Impact Driver for
improved spray results.
Replace Spray Tip.
Let material settle or change to
different material.
Warm material.
Verify Cup Lid is tight. An under
tightened Cup Lid will allow air to
seep into the FlexLiner and
cause a loss of prime. Add Seal
Lube (included) to the Cup Lid
gasket to ensure an airtight seal.
Make certain there is only one
FlexLiner in the Cup Support.
Make certain there is no damage
to or debris on the top sealing
edge of the FlexLiner or Cup Lid
gasket.
Make certain the Cup Lid is
properly threaded to the Cup
Support. There should be no
threads visible when tight.
Avoid flexing or pushing on the
Cup Support when you evacuate
the air out of the FlexLiner.
Avoid pulling down on the
FlexLiner when you evacuate the
air out of the FlexLiner.
Replace FlexLiner.
27