Graco Inc 261820 specifications Hazard After Thermal

Page 18

			Advanced Troubleshooting

Specific Problem	Cause		Solution


Sprayer Wiring Problems	Sprayer power cord damaged.	Unplug sprayer power cord.
NOTE: Remove enclosure		Disconnect black power cord wire at power switch.
NOTE: Remove enclosure
mounting screws and pull		Unplug in-line connection white cord wire.
enclosure away from drive		Plug in power cord.
housing. Take care not to pull		Plug in power cord.
housing. Take care not to pull
on leads from electrical cord		Test voltage between black and white wires of
and power switch.		power cord. Meter must read 85 to 130V AC.
		Replace power cord if no voltage.

	Sprayer power switch	1.	Unplug sprayer power cord.
	damaged.	2.	Disconnect black control board wire at power
		2.	Disconnect black control board wire at power
			switch.
		3.	Unplug in-line connection white cord wire.
		4.	Plug in power cord.
		5.	Turn power switch ON.
		6.	Test voltage between open terminal of power
			switch and white power cord wire. Meter must
			read 85 to 130V AC.
		7.	Replace power switch if no voltage.

	Motor thermal overload cutoff	1.	Unplug sprayer power cord.
	switch damaged.	2.	Remove motor harness from control card.
		2.	Remove motor harness from control card.
	WARNING: See Startup	3.	Check for continuity between yellow leads or
	Hazard After Thermal		motor harness.
	Overload on page 6.	4.	If thermal relief switch is open (no continuity)
			allow motor to cool.
		5.	If switch remains open after motor cools,
			replace motor using Motor Kit, page 26.
		6.	If thermal relief switch closes after motor
			cools, find correct cause of overheating.

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312667B

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Contents ProX9 Airless Sprayers 312667B US Patent 6,752,067 European Patent 1 208 Korean PatentRelated Manual Specifications Getting StartedFold-n-StoreCart ProX Sprayers Only Grounding Instructions Fire and Explosion Hazard Equipment Misuse Hazard Installation Grounding and Electric RequirementsThermal Overload X7, ProX7, and ProX9 Only Component IdentificationProX Sprayers Only ProX9 OnlySG20 SG10 Trigger Lock Pressure Control Knob Settings Pressure Relief ProcedureOperation Trigger Locked SG10 Trigger Unlocked SG10General Repair Information Basic Troubleshooting Grounding and Electric RequireProX7 and ProX9 Insert screw Read Pump does not prime section ProX7 and ProX9 OnlyGrounding and Electrical Requirements,Grounding and Electrical Advanced Troubleshooting General Problem Motor Does Not OperateSee Control Board Diagnostics, Hazard After Thermal General Problem Circuit Breaker is Tripping General Problem Erratic Motor Operation Electric Requirements,Control. See List of Kits, See Control Board Diagnostics, page 25. If General Problem Low or Fluctuating OutputSwitch Kit, Prime/Spray Valve Kit,General Problem Excessive Pressure Build Up Control Switch Kit,Use Pressure Control Switch Kit, to replace Setup Motor Diagnostics X5Motor Diagnostics ProX7 and ProX9 Setup Relieve Pressure,Pressure Control Switch Diagnostics ProX7, ProX9, X5,Control Board Diagnostics ProX7 and ProX9 Control Board Diagnostics X5Pump Diagnostics List of Kits Kit Number Models Kit DescriptionX5 Model 262800 Parts List PartsPart Description Qty X5 Model X5, Model X7 Model 262805 Parts List X7 Model 41a 41b 41c 67a 47a 41d 67b 85a ProX7 and ProX9 Models 261815 and 261820 Parts List HUB CAPProX7 and ProX9 Models 261815 ProX7 and ProX9 Models 261810 Wiring Diagrams X5 and X7 Models 262800ProX7 and ProX9 Models 261815 Technical Data Magnum ProX7 Magnum ProX9Graco Standard Warranty For Graco Canada CustomersGraco INC. P.O. BOX 1441 MINNEAPOLIS, MN