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Graco Inc 261820 specifications Grounding and Electrical

Models: 261820

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Basic Troubleshooting

Problem	Cause	Solution


Fan pattern varies dramatically while	Pressure control switch is worn and	Take sprayer to Graco/MAGNUM
spraying.	causing excessive pressure variation.	authorized service center.
OR
Sprayer does not turn on promptly
when resuming spraying.

Cannot trigger spray gun.	Spray gun trigger lock is locked.	Rotate trigger safety lever to unlock
		trigger lock, page 9.

Paint is coming out of pressure	Pressure control switch is worn.	Take sprayer to Graco/MAGNUM
control switch.		authorized service center.

Prime/Spray valve actuates	System is over pressurizing.	Take sprayer to Graco/MAGNUM
automatically relieving pressure		authorized service center.
through prime tube.

Paint leaks down outside of pump.	Pump packings are worn.	Take sprayer to Graco/MAGNUM
		authorized service center.

Motor is hot and runs intermittently.	Vent holes in enclosure are plugged	Keep vent holes clear of obstructions
Motor automatically shuts off due to	or sprayer is covered.	and overspray and keep sprayer
excessive heat. Damage can occur if		open to air.
cause is not corrected. See Thermal
cause is not corrected. See Thermal	Extension cord is too long or not a	Replace extension cord. Read
Overload, page 6.	heavy enough gauge.	Grounding and Electrical
	heavy enough gauge.	Grounding and Electrical
		Requirements, page 6.

	Unregulated electrical generator	Use electrical generator with a proper
	being used has excessive voltage.	voltage regulator. Sprayer requires
		120VAC, 60 Hz, 1500-Watt
		generator.

312667B

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Graco Inc 261820 specifications Grounding and Electrical

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 ProX9 Only Component IdentificationProX Sprayers Only X7, ProX7, and ProX9 OnlySG20 SG10 Trigger Locked SG10 Trigger Unlocked SG10 Pressure Control Knob Settings Pressure Relief ProcedureOperation Trigger LockGeneral Repair Information Grounding and Electric Require Basic TroubleshootingProX7 and ProX9 Insert screw ProX7 and ProX9 Only Read Pump does not prime sectionRequirements, Grounding and ElectricalGrounding and Electrical General Problem Motor Does Not Operate Advanced TroubleshootingSee Control Board Diagnostics, Hazard After Thermal General Problem Circuit Breaker is Tripping General Problem Erratic Motor Operation Electric Requirements,Control. See List of Kits, Prime/Spray Valve Kit, General Problem Low or Fluctuating OutputSwitch Kit, See Control Board Diagnostics, page 25. IfGeneral Problem Excessive Pressure Build Up Control Switch Kit,Use Pressure Control Switch Kit, to replace Setup Relieve Pressure, Motor Diagnostics X5Motor Diagnostics ProX7 and ProX9 SetupProX7, ProX9, X5, Pressure Control Switch DiagnosticsControl Board Diagnostics ProX7 and ProX9 Control Board Diagnostics X5Pump Diagnostics Kit Number Models Kit Description List of KitsX5 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 HUB CAP ProX7 and ProX9 Models 261815 and 261820 Parts ListProX7 and ProX9 Models 261815 ProX7 and ProX9 Models 261810 X5 and X7 Models 262800 Wiring DiagramsProX7 and ProX9 Models 261815 Magnum ProX7 Magnum ProX9 Technical DataFor Graco Canada Customers Graco Standard WarrantyGraco INC. P.O. BOX 1441 MINNEAPOLIS, MN