User's Manual

Troubleshooting
Gun Gun
Gun
Operation Operation
Operation
Troubleshooting Troubleshooting
Troubleshooting
Problem Problem
Problem
Cause Cause
Cause
Solution Solution
Solution
Atomizingairpressuretoohigh.
Closerestrictorvalvepartway,or
decreaseairpressureaslowas
possible;minimum45psi(0.32
MPa,3.2bar)neededatgunfor
fullvoltage.
Excessivesprayfog.
Fluidtoothin,oruidowistoo
low.
Increaseviscosityorincreaseuid
owrate.
Atomizingairpressuretoolow.
Openatomizingairvalvemoreor
increasegunairinletpressure;
uselowestairpressurenecessary.
Poorlymixedorltereduid.Remixorrelteruid.
“OrangePeel”nish.
Fluidtoothick.Reduceviscosity.
Fluidleaksfromtheuidpacking
area.
Wornpackingsorrod.
SeePackingRodRepair,page57.
Airleaksfromthefrontofthegun.
Airvalveisnotseatingproperly.
SeeAirValveRepair,page65.
Wornelectrode.
See
ElectrodeReplacement,page54.
Wornuidnozzleseat.Replacenozzle(4).See
AirCapandNozzleReplacement,
page51.
Looseuidnozzle.
Tighten.
Fluidleakagefromthefrontofthe
gun.
Damagednozzleo-ring.
SeeAirCapandNozzle
Replacement,page51.
Lowuidsupply.Adduidifnecessary.
Dirtyorcloggeduidnozzle.Clean.See
CleantheGunDaily,page37.
Gundoesnotspray.
Closedordamageduid
adjustmentvalve.
Openvalve,orsee
ESOn-OffandFluidAdjustment
ValveRepair,page64.
Dirtyaircap.
Misalignedaircapanduidnozzle.Cleanuidbuildupoffaircap
anduidnozzleseat.See
CleantheGunDaily,page37.
Poorgrounding.
SeeGrounding,page26.
Excessivepaintwrapbackto
operator.
Incorrectdistancefromguntopart.Shouldbe8–12in.(200–300mm).
3A2496D
47