TROUBLESHOO
TING
20
AIR
-
POWERED SIPHON
-
FEED SPRAY GUN 058
-
9336
-
2
Pattern is not spread
uniformly
1. Paint has built up on air cap.
2. Fluid nozzle is dirty or worn.
1. Clean or replace air cap.
2. Clean or replace fluid nozzle.
Centre of pattern is
too narrow
1. Paint is too thin or not
sufficient.
2. Atomization air pressure is too
high.
1. Regulate paint viscosity.
2. Reduce air pressure.
Width of spray
pattern is too narrow
1. Paint is too thick.
2. Atomization air pressure is too
low.
1. Regulate paint viscosity.
2. Increase the air pressure.
Air leakage from air
cap when trigger is
not pressed
1. Air valve stem is stuck.
2. Air valve or seat is contaminated.
3. Air valve or seat is worn or
damaged.
4. Air valve spring is broken.
5. Air valve stem is bent.
1. Lubricate the air valve stem.
2. Clean the air valve or seat.
3. Replace the air valve or seat.
4. Replace the air valve spring.
5. Replace the air valve stem.
Fluid leakage from
packing nut
1. Packing nut is loose.
2. Packing nut is worn or dry.
1. Tighten the packing nut, but do not restrict
needle.
2. Replace or lubricate the packing nut
(use non
-
silicone oil).
PROBLEM
POSSIBLE CAUSES
SOLUTIONS
MC-OM-10
MC-OM-11
MC-OM-12
