Graco TrueCoat 360 16Y391 Owner's Manual page 29

Problem
Sprayer makes sound
but no material is
sprayed when trigger is
pulled (contd)
Sprayer sprays with poor
results
Paint leaks from sprayer
trigger area.
Paint leaks out of the cup
threads.
334179B
Cause
Speed control switch is set too low.
No or low material in material cup.
Spray tip is partially clogged.
Spray tip is not in correct position
Incorrect spray tip for application of
material.
Spray tip is worn or damaged
Material being sprayed is aerated
because it was shaken.
Material being sprayed is too cold to
spray.
Pump has reached its maximum life. Replace pump.
Cup not properly seated.
Troubleshooting
Solution
On models with a dual speed
control switch, set speed control
switch to HIGH. On variable
speed models, increase speed
until unit sprays.
Refill FlexLiner with material and
prime the pump. See Refilling
FlexLiner, page 12.
See Unclogging Spray Tip,
page 21.
Rotate spray tip to SPRAY
position.
Install different size spray tip.
See Installing Spray Tips, page
20.
Replace spray tip. See
Installing Spray Tips, page 20.
Do NOT shake material. Stir the
material or check the
manufacturer's recommendation
for the material being sprayed.
Warm material.
Make certain that there is only
one FlexLiner in cup support.
Make certain the cup cover is
properly threaded to the cup
support. If threads are visible
below the cup support when
tight, fully remove the cup cover
and reinstall to the cup support
so no threads are visible when
tight.
Make certain the cup cover is
tightened to the cup support so
the arrow on the cup cover is
within range of the indicator on
the cup support.
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.
Make certain there is no damage
to the FlexLiner lip or the cup
cover gasket.
Make certain that the FlexLiner
lip and cup cover gasket is free of
debris and dried paint.
Replace FlexLiner.
29