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Problem
Speed of application slow or slower
Intermittent flow/sputtering
Quick disconnect does not stay con-
nected.
Gun will not shut off
Fluid leaking at flow adjustment nut
Fluid leaking out of either plug
Flow adjustment won't adjust
14
Cause
Material too thick
Nozzle too small
Too much air being used.
Pump hose worn
Plugged or dirty gun
Kinked hose
Gun adjustment set too low
Hopper connection not tight
Debris in system
Dirty or corroded fitting
Worn nozzle or needle.
Debris in needle passage
Damaged seal.
Missing or damaged o-rings
Gun damaged
Dirty threads
Nozzle not on gun
Troubleshooting
Solution
Thin material.
Change nozzles to a larger size. See
Recommended Nozzle Selection
Chart, page 10.
Partially close gun air valve to reduce
air flow.
Replace hose.
Relieve Pressure, page 5. Clean
gun.
Unkink hose.
Increase flow adjustment with flow
adjustment nut.
Check gasket. TIghten connection.
Clean
Clean thoroughly. Soak in oil. Apply a
few drops of light oil.
Relieve Pressure, page 5. Replace
worn parts.
Relieve Pressure, page 5. Clean.
Relieve Pressure, page 5. Replace
seal.
Relieve Pressure, page 5. Replace
o-rings.
Replace gun
Clean threads
Put nozzle on gun
309863A
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