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Speedaire Operating Instructions
Speedaire
Conventional Spray Guns
Troubleshooting Chart (Continued)
E
Symptom
N
G
Sputtering
spray
L
I
S
H
Fluid leaking from
packing nut
Air leaking from air cap
without pulling trigger
Fluid leaking from fluid
tip of pressure feed spray
gun
Excessive overspray
Will not spray
No pressure in tank
Pressure Feed -
®
Possible Cause(s)
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
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.
Packing nut too tight
2.
Fluid tip worn or damaged
3.
Foreign matter on tip
4.
Fluid needle spring broken
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 (siphon)
4.
Fluid pressure too low (pressure feed)
1.
Regulator damaged or defective
2.
Check valve stuck
Corrective Action
1.
Refill
2.
Hold more upright
3.
Tighten
4.
Adjust or replace
5.
Lubricate and or tighten
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.
Adjust
2.
Replace tip and/or needle
3.
Clean
4.
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
4.
Increase fluid pressure
1.
Replace regulator
2.
Clean or replace check valve
8
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