13
AIRLESS TIP SELECTION
REMEDY
1. Inspect connections for
air leaks
2. Disassemble and clean
3. Inspect and adjust
4. Inspect and replace
1. Replace
2. Adjust
3. Clean
1. Check fluid supply
2. Clean
3. Replace
PROBABLE CAUSE
1. Air in system
2. Dirty gun
3. Needle assembly out of adjustment
4. Broken or chipped seat
1. Worn or broken needle & seat
2. Needle assembly out of adjustment
3. Dirty gun
1. No paint
2. Plugged filter or tip
3. Broken needle in gun
PROBLEM
Spitting gun
Gun will not shut off
Gun does not spray
TROUBLESHOOTING AIRLESS GUN
Tips are selected by the orifice size and fan width. The proper selec-
tion is determined by the fan width required for a specific job and by
the orifice size that will supply the desired amount of fluid and accom-
plish proper atomization.
For light viscosity fluids, smaller orifice tips generally are desired. For
heavier viscosity materials, larger orifice tips are preferred. Please
refer to the chart below.
Note: do not exceed the pump's recommended tip size.
The following chart indicates the most common sizes and the appropri-
ate materials to be sprayed.
.011 - .013 Lacquers & Stains 100 Mesh Filter
.015 - .019 Oil & Latex 50 Mesh Filter
.021 - .026 Heavy Bodied Latex & Blockfillers 5 Mesh Filter
Fan widths measuring 8" to 12" (20 to 30 cm) are most preferred
because they offer more control while spraying and are less likely to
plug.
