Graco Inc 261820 Control Board Diagnostics ProX7 and ProX9, Control Board Diagnostics X5

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Control Board Diagnostics (ProX7 and ProX9)

Control Board Diagnostics (ProX7 and ProX9)

Check for motor problems before replacing control board. A damaged motor may burn out a good control card.

Check for a damaged control board or pressure control switch as follows:

7.Attach harness from a pressure control switch you know is functioning correctly to control board.

Pressure control switch does not have to be installed in pump.

1.Relieve Pressure, page 9.

2.Unplug electrical cord.

3.Remove four cover screws and front cover. Remove motor enclosure.

4.Remove yoke and guide rods.

5.Remove gear.

6.Remove pressure control harness from control board. Using tip of small, flat blade screwdriver, press tab on right side connector to release.

8.Turn pressure control adjustment knob (C) +to max- imum pressure setting.

9.Plug electrical cord into 120VAC receptacle.

10.Turn power switch (B) ON.

•If motor runs, replace pressure switch. Pressure Control Switch Kit, page 26.

•If motor does not run, replace control board repeat test. Control Board Kit, page 26.

Control Board Diagnostics (X5 and X7)

Check for motor problems before replacing control board. A damaged motor may burn out a good control card.

1.Unplug electrical cord and Relieve Pressure, page 9.

2.Remove enclosure and check all control board connectors for proper installation (see Wiring Diagram, page 36).

3.Check fuse on control board. If fuse is blown, determine the cause before replacing control board (see Advanced Troubleshooting, page 16).

Pump Diagnostics

CAUTION

When repairing or cleaning the pump, never submerge pump in water or allow fluid to enter pressure control.

When pump packings wear, paint begins to leak down the outside of the pump. At the first sign of leakage, replace the pump or additional damage to the drive train could occur.

1.X5 and X7: Replace pump using Pump Replace- ment (Complete). See List of Kits, page 26.

ProX7 and ProX9: Replace pump using Pump Repair kit. See List of Kits, page 26.

2.If there is no paint leakage, see Advanced Troubleshooting, page 16. Pump may not be defective.

312667B

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Contents US Patent 6,752,067 European Patent 1 208 Korean Patent ProX9 Airless Sprayers 312667BRelated Manual Getting Started SpecificationsFold-n-StoreCart ProX Sprayers Only Grounding Instructions Fire and Explosion Hazard Equipment Misuse Hazard Grounding and Electric Requirements InstallationThermal Overload ProX Sprayers Only Component IdentificationX7, ProX7, and ProX9 Only ProX9 OnlySG20 SG10 Operation Pressure Control Knob Settings Pressure Relief ProcedureTrigger Lock Trigger Locked SG10 Trigger Unlocked SG10General 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 Electric Requirements, General Problem Erratic Motor OperationControl. See List of Kits, Switch Kit, General Problem Low or Fluctuating OutputSee Control Board Diagnostics, page 25. If Prime/Spray Valve Kit,Control Switch Kit, General Problem Excessive Pressure Build UpUse Pressure Control Switch Kit, to replace Motor Diagnostics ProX7 and ProX9 Motor Diagnostics X5Setup Setup Relieve Pressure,ProX7, ProX9, X5, Pressure Control Switch DiagnosticsControl Board Diagnostics X5 Control Board Diagnostics ProX7 and ProX9Pump Diagnostics Kit Number Models Kit Description List of KitsParts X5 Model 262800 Parts ListPart 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
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