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Paint Sprayer hums but
does not operate
Piston sticking (3c) Remove the large knob at the top of the unit. Pull Nozzle
and Piston Assembly down and back to release from main
gun assembly. Insert the metal punch (7), supplied in the
spares pack, into the front of the cylinder housing and
gently tap the punch to eject the seized piston. Clean and
lubricate piston and cylinder. Re-assemble carefully in
reverse order. Remember to replace the compression
spring onto the piston before fitting the piston. Ensure you
have not dropped any parts into main Paint Sprayer
assembly.
No suction feed Liquid too thick
No Valve Assembly
(3a)
Paint Suction Tube
and Filter Assembly
(4) blocked
Thin liquid as recommended or contact paint manufacturer
Remove Nozzle, and insert Valve Assembly and refit
Nozzle
Clean filter
Paint Sprayer motor
operates, but nothing
comes out
Nozzle blocked part
(1/2)
Nozzle Valve
Assembly blocked
(3a)
Clean thoroughly with thinners or if water based paint,
clean with water.
Clean thoroughly with thinners.
Paint Sprayer motor
operates but spluttering
Paint Container
almost empty
Paint Sprayer held at
wrong angle
Liquid too thick
Incorrectly set
regulation control
Incorrect Nozzle
fitted
Worn Nozzle (1/2)
Worn Valve
Assembly (3a)
Refill Paint Container
Hold at correct angle
Thin liquid as recommended
Adjust regulator at back of Paint Sprayer
Replace Nozzle with other size
Replace Nozzle
Replace Valve Assembly
Paint dripping from
Nozzle
Nozzle loose
Paint Sprayer held
at more than 45˚
Tighten Nozzle
Keep Paint Sprayer upright
Excessive overspray Pressure too high
Holding Paint
Sprayer too far from
surface
Turn output knob clockwise to reduce pressure.
Hold Paint Sprayer about 25-30cm (10”-12”) from work
Runs and sags in paint Arm movement too
slow
Paint Sprayer too
close to work surface
Applying too much
paint in one go
See section on spraying. (See page 6 and 7).
TROUBLESHOOTING