Earlex ASG55 Operating Instructions Manual - page 6
TROUBLE SHOOTING
PROBLEM CAUSE
ACTION
REQUIRED
Spray Gun HUMS
Piston sticking.
Remove the large knob at the top of the unit part no.
but does not
part no. SG237
SG266. Pull nozzle and piston assembly down and
operate
back to release from main gun assembly. Unscrew
and remove nozzle. Remove valve assembly. Insert the
metal punch, 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 gun assembly.
No suction feed.
Liquid too thick.
Thin liquid as recommended or contact paint
manufacturer.
No valve assembly. Remove nozzle,and insert valve assembly part no.
SG301 and refit nozzle.
Paint pickup
Clean filter accordingly part no. SG240.
filter blocked.
Spray Gun motor.
Nozzle blocked
Clean thoroughly with thinners or if water based paint,
operates but
part no. SG211.
clean with water.
nothing is coming
Nozzle valve
Clean thoroughly with thinners.
out.
assembly
blocked, part no.
SG301.
Spray Gun motor
Container almost
Refill container.
operates, but
empty.
spluttering.
Spray gun held
Hold at correct angle.
at wrong angle.
Liquid too thick.
Thin liquid as recommended.
Incorrectly set
Adjust regulator at back of gun.
regulation
control.
Incorrect nozzle
Replace nozzle with other size.
fitted
Worn nozzle.
Replace nozzle part no. SG211, SG210, SG209.
Worn valve
Replace valve assembly part no. SG301.
assembly.
Paint dripping
Nozzle loose.
Tighten nozzle. - Handtight
Operating at more
Keep sprayer upright.
than 45
o
angle.
Excessive fogging
Holding sprayer
Hold sprayer about 10”-12” (25 - 30cm) from work.
too far from
surface.
Pressure too high.
Turn output knob clockwise to reduce pressure.
Runs and sags in
Arm movement
See section on spraying. (See page 4 & 5).
paint
too slow.
Spray gun too
close to work
surface.
Applying too much
paint in one go.
6