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,page40.
Airleaksfromthefrontofthegun.
Airvalveisnotseatingproperly.
SeeAirValveRepair,page50.
Wornordamageduidpacking
rodorelectrode.
Replacepackingrod(2e)
orelectrode(3).See
PackingRodRepair,page40or
ElectrodeReplacement,page39.
Wornuidnozzleseat.Replacenozzle(4).See
AirCapandNozzleReplacement,
page38.
Looseuidnozzle.
Tighten.
Fluidleakagefromthefrontofthe
gun.
Damagednozzleo-ring.
SeeAirCapandNozzle
Replacement,page38.
Lowuidsupply.Adduidifnecessary.
Dirtyorcloggeduidnozzle.Clean.See
CleantheGunDaily,page29.
Gundoesnotspray.
Closedordamageduid
adjustmentvalve.
Openvalve,orsee
ESOn-OffandFluidAdjustment
ValveRepair,page49.
Dirtyaircap.
Misalignedaircapanduidnozzle.Cleanuidbuildupoffaircap
anduidnozzleseat.See
CleantheGunDaily,page29.
Poorgrounding.
SeeGrounding,page21.
Excessivepaintwrapbackto
operator.
Incorrectdistancefromguntopart.Shouldbe8–12in.(200–300mm).
34 3A2494D