Graco 295530 Operation, Parts, Service And Repair page 18

Spray Pattern Adjustment
12).
F . 12: Opening Spray Pattern
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5. Fine tune spray pattern:
a. After you back out adjustment screw,
make fine adjustments (1/8 turns or less
in either direction as required) to obtain
pattern shown in F
screw out beyond this point may cause
the pattern to split, as shown in F
F . 13: Desired Pattern
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. 13. Moving the
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. 14.
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F . 14: Split Pattern
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b. If full-round pattern cannot be achieved,
ensure that material temperature and
spray pressure are correct. If pattern
remains closed upon reaching maxi-
mum specified number of turns out from
point of valving, material temperature is
too low
c. If pattern splits or has hollow center,
even with the adjustment screw at mini-
mum number of turns from point of valv-
ing, material temperature is too high.
Refer to F . 12.
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d. After reaching satisfactory spray pat-
tern, note temperatures at proportioner
and hose, and position of notch on the
adjustment screw. As spraying pro-
ceeds, pattern may occasionally streak
or change. If this happens, inspect
chamber tip and remove any build-up of
solid foam with wooden stick or brass
wire brush.
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