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AIRLESS TIP SELECTION
Tips are selected by the orifice size and fan width. The proper selection is determined by the fan width required for a
specific job and by the orifice siz~ that
will
supply the desired amount of fluid and accomplish proper atomization.
For light viscosity fluids, smaller orifice tips generally are desired. For heavier viscosity materials larger orifice tips
n·
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 appropriate materials to be sprayed.
.011 - .013
.015- .019
.021- .026
Lacquers & Stains
Oil & Latex
Heavy Bodied Latex and Blockfillers
1 00 Mesh Filter
60 Mesh Filter
30 Mesh Filter
Fan widths measuring 8" to 12" are most preferred because they offer more control while spraying and are less
likely to plug.
TROUBLESHOOTING SPRAY PATTERNS
PROBLEM
Tails
Heavy centered pattern
Distorted Pattern
Pattern expanding and
contracting (Surge)
PROBABLE CAUSE
1. Inadequate fluid delivery
2. Fluid not atomizing
3. Insufficient velocity
4. Material too cohesive
5. Tip worn past pump capacity
1. Worn tip
2. Tip may be chipped
1. Plugged, worn or chipped tip
1. Leak in suction tube
2. Not enough hose
3. Tip too large or worn
REMEDY
1. Increase pressure
2. Change to smaller tip
3. Clean gun and pump filters
4. Reduce viscosity
5. Replace
1. Replace
2. Replace
1. Clean or replace
1. Tighten
2. Use a minimum of 50' of
114" high pressure hose
3. Replace with a new or
smaller tip
TROUBLESHOOTING AIRLESS GUN
TROUBLE
Spitting gun
Gun will not shut off
Gun does not spray
PROBABLE CAUSE
1. Air in system
2. Dirty gun
3. Needle assembly out of adj.
4. Broken or chipped seat
1. Worn or broken needle
and seat
2. Needle assembly out of adj.
3. Dirty gun
1. No paint
2. Piugged filter or tip
3. Broken needle in gun
14
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
CJ
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