22
Symptom
Cause
Countermeasure
Spray performance
is poor.
Wrap air does not come out or wrap
air pressure is too low.
Raise the wrap air pressure.
Paint viscosity is too high.
Reduce the paint viscosity.
Paint pressure is too low.
Adjust paint pump to raise the pressure.
Air outlet in air cap is clogged.
Clean air cap.
Spray pattern width
does not change
enough.
Paint pressure is too high.
Reduce the paint pressure.
Wrap air pressure is tool low and
pattern air regulating valve is not
open.
Raise the air pressure and open pattern
air regulating valve.
A nozzle with smaller pattern width
has been used.
Replace with a nozzle that provides a
larger pattern width.
Air leaks through worn or damaged
packing (6004 0335 44).
Replace packing (6004 0335 44).
Air leaks even after
trigger is released.
Air valve seat is clogged with debris
or dust.
Clean air seat and air valve.
Worn O-ring
Replace O-ring with a new one.
Shaft does not return due to
deposited paint.
Remove paint deposited to shaft.
Air leaks from
pattern control
knob.
Broken O-ring
Remove valve set and replace O-ring with
a new one.
Paint is not
sprayed.
Nozzle tip is clogged.
Remove nozzle, immerse it in a solvent for
a while and blow air from the opposite
side.
Paint is not supplied under pressure.
Check paint feed pump.
Red lamp does not
light when gun is
triggered.
Operating wire within connecting
cable has been cut.
Replace connecting cable with a new one.
Hand switch button is out of position.
Set the hand switch button in right
position.
Broken magnet sensor
※
Replace magnet sensor with a new
one.
Red lamp lights
when gun is not
triggered.
Faulty magnet sensor
※
Replace magnet sensor with a new
one.
Bent trigger
Replace trigger with a new one.
