Graco Inc. 295530 ユーザーズマニュアル
Spray Pattern Adjustment
311320G
15
F
IG
. 12: Opening Spray Pattern
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
in either direction as required) to obtain
pattern shown in F
. 13. Moving the
screw out beyond this point may cause
the pattern to split, as shown in F
the pattern to split, as shown in F
F
IG
. 13: Desired Pattern
F
IG
. 14: Split Pattern
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
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
mum number of turns from point of valv-
ing, material temperature is too high.
Refer to F
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.
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.