Graco Inc. 295533 ユーザーズマニュアル

tern opens as adjustment is made (F

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

. 13. Moving the 

screw out beyond this point may cause 
the pattern to split, as shown in F

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

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.