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Speedaire Operating Instructions
Speedaire
Spray Guns
Troubleshooting Chart
Symptom
Right or left
heavy spray
pattern
E
N
G
Top or bot-
tom heavy
L
spray pat-
I
tern
S
H
Split spray
pattern
Center
heavy spray
pattern
Sputtering
spray
Fluid leaking from packing
nut
Air leaking from air cap
without pulling trigger
Excessive overspray
Will not spray
©
Siphon Feed - Conventional
Possible Cause(s)
1.
Holes in left or right side of the air
cap are plugged
2.
Dirt on left or right side of fluid tip
1.
Dried material at top or bottom of
fluid tip
2.
Loose air cap or dirty seat
3.
Air cap plugged
1.
Fan pattern open too far
2.
Fluid turned in too far
3.
Atomization air too high
1.
Fan adjustment partially closed
2.
Material too thick
3.
Atomization pressure too low
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.
Packing nut loose
2.
Packing worn or dry
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.
Too high atomization pressure
2.
Too far from work surface
3.
Improper stroking (arcing, gun
motion too fast)
1.
No pressure at gun
2.
Fluid control not open enough
3.
Fluid too heavy
2Z366H, 4XP62B, 4XP63B and 4RR06B
Corrective Action
1.
Clean. Use only non-metallic paint
2.
Clean
1.
Clean
2.
Clean and tighten
3.
Clean. Use only non-metallic pick
1.
Partially close the pattern adjustment
2.
Increase fluid
3.
Reduce atomization air pressure
1.
Open fan pattern adjustment
2.
Thin to proper viscosity
3.
Increase atomization pressure
1.
Refill
2.
Hold more upright
3.
Tighten
4.
Adjust or replace
5.
Lubricate and or tighten
6.
Clear vent hole
1.
Tighten, but do not restrict needle
2.
Replace or lubricate (non-silicone oil)
1.
Lubricate
2.
Clean
3.
Replace
4.
Replace
5.
Replace
1.
Reduce pressure
2.
Adjust to proper distance
3.
Move at moderate pace, parallel to surface
1.
Check air lines
2.
Open fluid control
3.
Thin fluid or change to pressure feed system
6
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