14
© 2013 Finishing Brands UK Ltd.
Troubleshooting Possible Problems in Operation
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R
bottom
Heavy
C '
"
$
pattern
R
'
"
$
"
C C
O
Obstruction on top or bottom of
"
nozzle.
Cap and
/ /"
$
O
Left or right side horn holes plugged.
Dirt on left or right side of fluid
//"
O
"
O
-
%
'
-metallic
point.
Clean.
Clean.
Clean. Ream with non
¢
metallic
O
Clean.
½¾ ½¿ À½ Á
 à Ä
ÅÆ ½
Å Ã
Ç
-heavy, bottom-heavy, right-heavy, and left-heavy patterns:
1. Determine if the obstruction is on the air cap or the
"
nozzle. Do this by making a test spray pattern.
T
'
7
rotate the cap one
¢
half turn and spray another pattern. If the defect is inverted, obstruction is on the air cap.
"
'
$
$
"
$
O
"
$
'
A
F
$
$
'
hole opening;
#
washing with solvent.
2. If the defect is not inverted, it is on the
"
nozzle. Clean nozzle. If problem persists, renew nozzle.
R
centre
S
F
$
"
$
too
low.
Atomising pressure too low.
Material too thick.
T
"
A
%
$
a
'
correct pattern.
Increase pressure.
Thin to correct consistency.
S "
$
patter
ir pressure too high.
Fluid adjusting knob turned in
far.
Spreader adjusting valve set too
'
C
'
O
-
C
"
C
'
"
O
Turn out counter clockwise to
'
correct pattern.
Turn in clockwise to achieve
correct pattern.
¤
A
or fluttering spray
; $
C
fluid nozzle/seat
Loose or broken cup
"
nipple
N
"
"
"
"
%
§#$
"
passage
; $
"
needle packing nut
0
C
"
needle packing
T
C '
"
Tighten or replace cup
-
"
l
R
"
C '
&
A
"
$
'
with solvent
T
C '
-
"
6
# ## "
$
"
/ /"
C '
O
T
C '
1 4
–
20 nm (13-15 ft-
"
#$
O
"
"
A
C
C
lid
"
"
$
O
Dirty cup
"
O
Cracked cup or lid.
6
$
'
"
O
Clean.
Replace cup and lid.
