Troubleshooting - Mastergrip 540139 Manual Del Propietário

TROUBLESHOOTING

SPRAY PATTERN
PROBLEM
CONDITION
One side of nozzle wing is clogged. Soak nozzle in solvent to loosen
a) Loose air nozzle.
b) Material around outside of air
nozzle has dried.
a) Atomization air pressure is set
too high.
b) Trying to spray a thin material
in too wide a pattern.
a) Packing around needle valve is
dried out.
b) Fluid nozzle loosely installed or
dirt between nozzle and body.
c) Needle sealing damaged.
Spitting
Improper spray pattern a) Gun improperly adjusted.
b) Dirty air cap.
c) Fluid tip obstructed.
d) Sluggish needle.
Unable to get round spray Fan adjustment screw
not seating properly.
Will not spray a) No air pressure at gun.
b) Fluid pressure too low with
internal mix cap and pressure
tank.
c) Fluid control screw not open
enough.
d) Fluid too heavy for suction feed.
SOLUTION
clogs, then blow air through until
clean. To clean orifices use a
toothpick. Never try and detach
dried material with sharp tool.
a) Trigger air nozzle.
b) Take off air nozzle and
wipe off fluid tip, using
rag moistened with thinner.
a) Reduce air pressure.
b) Increase material control by
turning fluid. Control screw
to left, while reducing spray
width by turning spray width
adjustment screw to right.
a) Back up knurled nut and put
a few drops of machine oil
on packing. Retighten nut.
b) Take off fluid nozzle. Clean rear
of nozzle and seat in gun body.
Replace nozzle and bring in tight
to body.
c) Replace #4 sealing.
a) Readjust gun.
Follow instructions carefully.
b) Clean air cap.
c) Clean.
d) Lubricate.
Clean or replace.
a) Check air supply and air lines.
b) Increase fluid pressure at tank.
c) Open fluid control screw.
d) Thin material or change to
pressure feed.
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SPRAY PATTERN
PROBLEM
CONDITION
Fluid leakage from a) Packing nut loose.
packing nut
b) Packing worn or dry.
Dripping from fluid tip a) Dry packing.
b) Sluggish needle.
c) Tight packing nut.
d) Worn fluid nozzle or needle.
Thin, sandy, and coarse a) Gun held too far from surface.
finish
b) Atomization pressure set too
high.
Thick, dimpled finish Gun held too close to surface.
resembling orange peel
SOLUTION
a) Tighten, but not so tight as to
grip needle.
b) Replace packing or lubricate.
a) Lubricate.
b) Lubricate.
c) Adjust.
d) For pressure feed, replace with
new fluid nozzle and needle.
a) Move gun closer to surface.
b) Adjust atomization pressure.
Move gun further away
from surface.
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