80W SPRAY GUN
SF75
thinner.
9. Use the cleaning pin to clear the nozzle and
the swirl head of the valve.
10.Apply a few drop of light lubricating oil to the
piston, piston spring and cylinder.
11. Reassemble the spray gun.
12. Clean the outside of the machine with a
moist cloth.
13. If the supply cord is damaged, a special cord
or assembly available from the manufacturer or
its service agent must replace it.
PROBLEM
CAUSE
SOLUTION
Motor hums but
does n ot s pray
or irregular
spraying
1. Valve worn
2. Piston stuck
3. No valve in the pump
4. Suction t ube is not
in the correct position
5. Blocked suction tube
6. Blocked nozzle
7. Blocked filter
8. Loosened locknut
1. Replace valve
2. Clean the piston with thinner
3. Fit valve
4. Adjust the suction tube
5. Clean the suction tube
using thinner
6. Clean the nozzle with pin
7. Clean the filter with thinner
8. Tighten the locknut
Atomization is
not good
1. Nozzle or locknut is
not tightened
2. Paint is too thick
1. Tighten the nozzle and
locknut
2. Check the viscosity of the
paint
Over painting
to the
1. Spray gun is too close
object be
sprayed
2. Too much paint
3. Viscosity is too low
1. K eep the spray gun 25-
35cm from the surface of
object
2. Adjust the output control
knob to reduce spraying
3. Check the viscosity
Motor is l ouder
than normal
spray gun is not clean
or lubricated
Disassemble the spray gun
and clean with thinner
No spray, no
sound
No electricity
Check power supply
Operating sound
is not right
1.poor output adjustment
2. not enough paint in
the container
3. not diluting properly or
not passing suction
tube completely
1. Re-adjust
2. Refill the with container
with paint
3. Check suction tube and
viscosity level
excessive
fogging
1. Incorrect solvent is
being used
2.Spray gun is too far
from the surface
3. The paint is too thick
1. Use the correct solvent
2. Hold the spray gun closer
to the surface be sprayed
3. Thin the paint
Summary of Contents for SF75
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