Haier 309292L important safety instructions Electrical Troubleshooting, See Test Gun Resistance on

Page 23

 

 

Troubleshooting

Electrical Troubleshooting

 

 

 

 

 

 

Problem

Cause

Solution

 

 

 

 

 

Poor wrap.

ES ON/OFF valve OFF (0).*

Turn ON (I).

 

 

 

 

 

 

Gun air pressure too low.

Check air pressure to gun; minimum

 

 

 

40 psi (0.28 MPa, 2.8 bar) needed at

 

 

 

gun for full voltage.

 

 

 

 

 

 

Atomizing air pressure too high.

Decrease.

 

 

 

 

 

 

Fluid pressure too high.

Decrease.

 

 

 

 

 

 

Incorrect distance from gun to part.

Should be 8-12 in. (200-300 mm).

 

 

 

 

 

 

Poorly grounded parts.

Resistance must be 1 megohm or

 

 

 

less. Clean workpiece hangers.

 

 

 

 

 

 

Faulty gun resistance.

See Test Gun Resistance on page

 

 

 

18.

 

 

 

 

 

 

Low fluid resistivity.

Check fluid resistivity, page 14.

 

 

 

 

 

 

Fluid leaks from the packing (26d)

Clean the packing rod cavity.

 

 

and causes a short.

Replace the packing rod. See page

 

 

 

29.

 

 

 

 

 

 

Faulty turbine alternator.

Be sure the plug is in place on the

 

 

 

back of the power supply housing.

 

 

 

Remove and test the turbine alterna-

 

 

 

tor. See page 32.

 

 

 

 

 

 

The KV HI-LO lever is on LO.

Check the lever actuation; replace if

 

 

 

needed.

 

 

 

 

 

ES indicator or voltage/current dis-

ES ON/OFF valve OFF (0).*

Turn ON (I).

 

play is not lit.

 

 

 

 

 

 

 

 

No power.

Replace power supply. See page 31.

 

 

 

 

 

Voltage/current display stays red

Gun too close to part.

Should be 8-12 in. (200-300 mm).

 

(smart guns only).

 

 

 

 

 

 

 

 

Check fluid resistivity.

See Check Fluid Resistivity on

 

 

 

page 14.

 

 

 

 

 

 

Dirty gun.

Clean. See Operation Manual.

 

 

 

 

 

Operator gets mild shock.

Operator not grounded or is near

See Grounding on page 12.

 

 

ungrounded object.

 

 

 

 

 

 

 

Gun not grounded.

See Check Electrical Grounding on

 

 

 

page 13 and Test Gun Resistance

 

 

 

on page 18.

 

 

 

 

 

Operator gets shock from workpiece.

Workpiece not grounded.

Resistance must be 1 megohm or

 

 

 

less. Clean workpiece hangers.

 

 

 

 

 

* ES indicator light is off when the gun is triggered.

309292L

23

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Contents PRO Xs3 and PRO Xs4 Air Spray Guns Table of Contents List of Models Toxic Fluid Hazard SymbolsFire, Explosion, and Electric Shock Hazard Pressurized Equipment Hazard Equipment Misuse HazardGun Overview IntroductionHow the Electrostatic Air Spray Gun Works Flammable or Toxic Vapor Hazard InstallationInstall the System Ventilate the Spray BoothTypical Installation Key Supply Hose Connect the Air LineConnect the Exhaust Tube Electric Shock HazardOrifice Size Connect the Fluid LineFilter the Fluid Select a Fluid Nozzle and Air Cap244919 Conversion Kit HC Conversion KitGrounding Check Gun Grounding Check Electrical GroundingCheck Fluid Viscosity Check Fluid ResistivityKV Guns Low Voltage Adjustment Smart Guns OnlyOperation Flush the Spray Gun MaintenanceHang the gun from its hook, with the nozzle pointing down Test Gun Resistance Electrical TestsTest Power Supply Resistance Test Power Supply ResistanceTest Electrode Resistance Test Electrode ResistanceSpray Pattern Troubleshooting TroubleshootingGun Operation Troubleshooting See Check Fluid Resistivity on Electrical TroubleshootingSee Test Gun Resistance on Repair Pressure Relief ProcedurePrepare the Gun for Service Air Cap/Nozzle Replacement Electrode Replacement Electrode ReplacementFluid Packing Removal Fluid Packing RemovalPacking Rod Packing Rod RepairBarrel Removal Barrel InstallationPower Supply Power Supply Removal and ReplacementFluid Tube Removal Replacement PRO Xs4 Guns Only Turbine Alternator Removal and ReplacementFan Air Adjustment Valve Fan Air Adjustment Valve RepairAir Valve Repair Fluid Adjustment Valve RepairES ON/OFF Valve Repair Atomizing Air Restrictor Valve Removal and ReplacementParts Fluid Tube Model Ref. No Alternator Ref. No Fan Adjustment ValveRef. No Packing Rod Ref. No ES ON/OFF Valve Description Qty Description Qty 51 Ref Ref. No ES ON/OFF Valve Ref. No Packing Rod Part No. Description Qty Part No. Description Qty Fluid Line Accessories AccessoriesAir Line Accessories Miscellaneous Accessories Gun AccessoriesCategory Data Technical DataTechnical Data 309292L Toll Free Graco Standard WarrantyGraco Information