Spray Pattern Diagnostics - Graco 16Y385 TrueCoat 360 Owner's Manual

Troubleshooting

Spray Pattern Diagnostics

Problem
Spray pattern is pulsating:
Spray pattern has tails:
Spray pattern has
dripping/sagging:
28
Operator is moving too
fast while spraying.
Spray tip is clogged.
Material difficult to
atomize.
Speed control is set too
low.
Material may need to be
ti15526a
thinned.
Incorrect spray tip for
application of material.
Material not compatible
with sprayer.
Spray tip is worn or
damaged.
Operator is moving too
slowly while spraying.
Sprayer is too close to
target surface.
Holding trigger while
changing spray direction.
Speed control switch is set
too high.
Spray tip is worn or
damaged.
Cause Solution
Slow speed of movement.
Unclog spray tip or clean spray
tip see Unclogging Spray Tip,
page 19.
On models with a dual speed
control switch, set speed control
to HIGH. On variable speed
models, increase speed until
desired pattern is achieved.
Hold sprayer farther away from
surface.
Switch to black (12") spray tip.
See Installing Spray Tips,
page 18.
On models with a dual speed
control switch, set speed control
to HIGH. On variable speed
models, increase speed until
desired pattern is achieved.
Thin material follow paint
manufacturer's
recommendations.
Install different size spray tip.
See Installing Spray Tips,
page 18.
Switch material.
Replace spray tip. See
Installing Spray Tips, page 18.
Move sprayer faster while
spraying.
Move sprayer away from
surface 10 in. (25 cm)
Release trigger when changing
directions.
On models with a dual speed
control switch, set speed control
to LOW. On variable speed
models, decrease speed until
desired pattern is achieved.
Replace spray tip. See
Installing Spray Tips, page 18.
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