Storing
z When not using spray gun, turn the fluid adjustment knob counter-clockwise to open which will reduce
spring tension on needle fluid tip.
z Spray gun MUST BE well cleaned and lightly lubricated.
Troubleshooting
Symptom Problems Solution
Fluttering or
spitting
1. Material level too low.
2. Container tipped too far.
3. Loose fluid inlet connection.
4. Loose or damaged fluid tip/seat.
5. Dry or loose fluid needle packing nut.
6. Air vent clogged
1. Add material into container.
2. Hold more upright.
3. Tighten.
4. Adjust or replace.
5. Lubricate and or tighten.
6. Clear vent hole.
Pattern is arched.
1. Worn or loose Fluid nozzle.
2. Material buildup on Air cap.
1. Tighten or replace Fluid nozzle.
2. Remove obstructions from holes,
but don’t use metal objects to clean it.
Pattern is not
evenly spread.
1. Material buildup on Air cap.
2. Fluid nozzle dirty or worn.
1. Clean or replace Air cap.
2. Clean or replace Fluid nozzle.
The center of pattern is
too narrow.
1. Material too thin.
2. Atomization air pressure too high.
1. Regulate material viscosity.
2. Reduce air pressure.
Pattern width of fan
shape is too narrow
1. Material too thick.
2. Atomization air pressure too low.
1. Regulate material viscosity.
2. Increase air pressure.
Air leaking from air cap
without pulling trigger
1. Sticking air valve stem
2. Contaminate on air valve or seat
3. Worn or damaged air valve or seat
4. Broken air valve spring
5. Bent valve stem
1. Lubricate
2. Clean
3. Replace
4. Replace
5. Replace
Fluid leaking from
packing nut
1. Packing nut loose
2. Packing worn or dry
1. Tighten, but do not restrict needle
2. Replace or lubricate (use non-silicone
oil)
Excessive overspray
1. Too high atomization pressure
2. Too far from work surface
3. Improper stroking (arcing, gun motion
too fast)
1. Reduce pressure
2. Adjust to proper distance
3. Move at moderate pace, parallel to
surface.
Will not spray
1. No pressure at gun
2. Fluid control not open enough
3. Fluid too heavy
1. Check air lines
2. Open fluid control
3. Thin fluid or change to pressure feed
system.
