Troubleshooting
14
3A1174B
Speed of application slow or slower
New pump hose not broken in
properly
Run pump dry for no more than 2
minutes.
Material too thick
Thin material.
Nozzle too small
Change nozzles to a larger size. See
Recommended Nozzle Selection
Chart, page 11.
Too much air being used
Partially close gun air valve to reduce
air flow.
Pump hose worn
Replace hose.
Plugged or dirty gun
Relieve Pressure, page 7. Clean
gun.
Kinked hose
Unkink hose.
Gun adjustment set too low
Increase flow adjustment with flow
adjustment nut.
Too many items on same circuit
Unplug other items from circuit
Extension cord too long or wrong
gauge
Use a different extension cord. Refer
to Grounding and Electric Require-
ments, page 7.
Intermittent flow/sputtering
Hopper connection not tight
Check gasket. TIghten connection.
Debris in system
Clean system.
Quick disconnect does not stay con-
nected.
Dirty or corroded fitting
Clean thoroughly. Soak in oil. Apply a
few drops of light oil.
Gun will not shut off
Worn nozzle or needle
Relieve Pressure, page 7. Replace
worn parts.
Debris in needle passage
Relieve Pressure, page 7. Clean.
Fluid leaking at Flow Adjustment Nut Damaged seal
Relieve Pressure, page 7. Replace
seal.
Fluid leaking out of either plug
Missing or damaged o-rings
Relieve Pressure, page 7. Replace
o-rings.
Gun damaged
Replace gun.
Needle adjustment won’t adjust
Dirty threads
Clean threads.
Nozzle not on gun
Put nozzle on gun.
Problem
Cause
Solution
