Graco 334466A Basic electrical problems, Replace loose terminals crimp to, Brush holders

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Troubleshooting

Problem	What to Check	How to check

Basic electrical problems	Motor leads are securely fastened	Replace loose terminals; crimp to
	and properly mated	leads. Be sure terminal are firmly
		connected.
		Clean circuit board terminals.
		Securely reconnect leads.

	For loose motor brush lead	Tighten terminal screws. Replace
	connections and terminals.	brushes if leads are damaged.

	Brushes must be 1/2 in. [13mm]	Replace brushes.
	minimum. NOTE: Brushes do not
	wear at the same rate on both sides
	of motor. Check both brushes.

	Broken or misaligned motor brush	Replace spring if broken. Realign
	springs. Rolled portion of spring must	spring with brush.
	rest squarely on top of brush.

	Motor brushes may be binding in	Clean brush holders. Remove carbon
	brush holders.	with small cleaning brush. Align brush
		leads with slot in brush holder to
		assure free vertical brush movement.

	Motor armature commutator for burn	Remove motor and have motor shop
	spots, gouges or extreme roughness.	resurface commutator if possible.

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334466A

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Contents SG3 Related ManualsContractor/FTx 334599Contents Model Hi-BoyStand Lo-Boy Grounding Extension CordsFire and Explosion Hazard Equipment Misuse Hazard Personal Protective Equipment Component Identification Stand ModelsLo-Boy Models Hi-Boy Models Hi-Boy Models Extension Cords Power RequirementsGrounding PailsPressure Relief Procedure Trigger Lock Setup 334466ATi24638a Make certain ON/OFF switch is OFF Turn prime valve horizontal. Disengage trigger lock Perform Pressure Relief Procedure, Startup20 s Ti24652a Operation Spray Tip InstallationPerform Pressure Relief Procedure, SprayClear Tip Clog Stored Data Display Pressure Display Perform Pressure Relief Procedure,Digital Display Ti2824a Cleanup Raise fluid intake above flushing fluid Ti24719a Maintenance Activity IntervalRefer to this column TroubleshootingMechanical/Fluid Flow Holders Dust with a small cleaning brush Properly installed to allow fullClockwise position. If problem Piston packings are worn orFluid supply is low or empty Possible during primingSpray tip is partially clogged Pump manual. Check fluid supplyProblem What to Check How to check ElectricalSprayer does not run at all Check transducer or transducer Install new transducer. ConnectAre clean and secure ConnectionsSize. Locate the two wires Contacts are clean and secureVolt battery to the motor Should spin when battery isOhms Display shows E=06 Motor thermal device When cool, correct causeBoard Motor. Check both brushes Basic electrical problemsReplace loose terminals crimp to Rest squarely on top of brush Motor brushes may be bindingSprayer Will Not Run Sprayer Will Not RunStep Troubleshooting Procedure Sprayer Will Not Shut OffStand Sprayers Torque Qty Stand Sprayers Parts ListRef. Part Description Lo-Boy Sprayers Models 17C3156040 132 Lo-Boy Sprayers Parts List Models 17C315 Ref. Part DescriptionHi-Boy Sprayers Models 17C317, 17C362, 17C40840 44 117 Hi-Boy Sprayers Parts List Models 17C317, 17C362, 17C408 Ref. Part DescriptionAccessories and Labels Alert Control Box Control Box Parts List GrommetWiring Diagrams 120V, US/Japan110V, UK TP1 TP2Technical Specifications Ultra 395 PC / Ultra 395 PC ClassicMetric Materials of Construction Graco Standard Warranty For Graco Canada CustomersGraco Information International Offices Belgium, China, Japan, Korea