Graco 334466A important safety instructions Sprayer Will Not Shut Off, Troubleshooting Procedure

Page 41

Troubleshooting

Sprayer Will Not Shut Off

1.Perform Pressure Relief Procedure, page 13. Leave prime valve open (down) and turn ON/OFF switch OFF.

2.Remove control box cover so the control board status light can be viewed if available.

Troubleshooting Procedure

Plumb pressure gauge into paint hose, plug sprayer in, and turn power switch ON. Does sprayer reach or exceed

its maximum pressure?

YES

Is the control board status light on?

YES

			Mechanical problem:
			See the proper fluid pump
NO			See the proper fluid pump
NO			manual for the sprayer for
			further troubleshooting procedures.

			Replace the control board.
NO
NO

Unplug the transducer from control board.

Does motor stop running?

YES

Bad transducer.

Replace and test with a new one.

			Replace the control board.
NO
NO

ti24731a

334466A

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Image 41

Contents Contractor/FTx Related ManualsSG3 334599Contents Model Hi-BoyStand Lo-Boy Extension Cords GroundingFire and Explosion Hazard Equipment Misuse Hazard Personal Protective Equipment Stand Models Component IdentificationLo-Boy Models Hi-Boy Models Hi-Boy Models Grounding Power RequirementsExtension Cords PailsPressure Relief Procedure Trigger Lock 334466A SetupTi24638a Make certain ON/OFF switch is OFF Turn prime valve horizontal. Disengage trigger lock Startup Perform Pressure Relief Procedure,20 s Ti24652a Perform Pressure Relief Procedure, Spray Tip InstallationOperation SprayClear Tip Clog Stored Data Display Pressure Display Perform Pressure Relief Procedure,Digital Display Ti2824a Cleanup Raise fluid intake above flushing fluid Ti24719a Activity Interval MaintenanceRefer to this column TroubleshootingMechanical/Fluid Flow Clockwise position. If problem Properly installed to allow fullHolders Dust with a small cleaning brush Piston packings are worn orSpray tip is partially clogged Possible during primingFluid supply is low or empty Pump manual. Check fluid supplyElectrical Problem What to Check How to checkAre clean and secure Install new transducer. ConnectSprayer does not run at all Check transducer or transducer ConnectionsVolt battery to the motor Contacts are clean and secureSize. Locate the two wires Should spin when battery isOhms Display shows E=06 Motor thermal device When cool, correct causeBoard Replace loose terminals crimp to Basic electrical problemsMotor. Check both brushes Rest squarely on top of brush Motor brushes may be bindingSprayer Will Not Run Sprayer Will Not RunStep Sprayer Will Not Shut Off Troubleshooting ProcedureStand Sprayers Torque Qty Stand Sprayers Parts ListRef. Part Description Models 17C315 Lo-Boy Sprayers6040 132 Models 17C315 Ref. Part Description Lo-Boy Sprayers Parts ListModels 17C317, 17C362, 17C408 Hi-Boy Sprayers40 44 117 Models 17C317, 17C362, 17C408 Ref. Part Description Hi-Boy Sprayers Parts ListAlert  Accessories and LabelsControl Box Grommet Control Box Parts List120V, US/Japan Wiring DiagramsTP1 TP2 110V, UKUltra 395 PC / Ultra 395 PC Classic Technical SpecificationsMetric Materials of Construction For Graco Canada Customers Graco Standard WarrantyInternational Offices Belgium, China, Japan, Korea Graco Information