Graco Inc 261820 specifications General Problem Excessive Pressure Build Up, Control Switch Kit

Page 22

 

 

Advanced Troubleshooting

 

 

 

 

 

 

 

Specific Problem

Cause

Solution

 

 

 

 

 

 

 

 

 

 

 

 

Motor runs and pump cycles,

Intake valve or outlet valve is

Remove and clean inlet valves and outlet valves.

 

 

but pressure does not build up.

not seating properly.

Replace if necessary. See List of Kits, page 26.

 

 

 

 

 

 

 

 

Pump packings are worn or

Check for leaking around pump.

 

 

 

damaged.

ProX7 and ProX9: Replace pump packings. See

 

 

 

 

 

 

 

 

List of Kits, page 26.

 

 

 

 

X5 and X7: Replace complete pump. See List of

 

 

 

 

Kits, page 26.

 

 

 

 

 

 

 

 

 

 

General Problem: Excessive Pressure Build Up

 

 

 

 

 

 

 

 

 

 

 

 

Specific Problem

Cause

Solution

 

 

 

 

 

 

 

 

 

 

 

 

Prime/Spray Valve actuates

Pressure control switch has

Replace pressure control switch using Pressure

 

 

automatically, relieving

pinched wires.

Control Switch Kit, page 26.

 

 

pressure through drain tube.

 

 

 

 

Water or paint entered

Use Pressure Control Switch Kit, to replace

 

 

 

 

 

 

pressure control switch or

switch. See List of Kits, page 26.

 

 

 

shorted control board.

 

 

 

 

 

 

 

 

 

Control board failed.

See Control Board Diagnostics, page 25.

 

 

 

 

Replace damaged control board using Control

 

 

 

 

Board Kit, page 26.

 

 

 

 

 

 

 

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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 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 Electric Requirements, General Problem Erratic Motor OperationControl. See List of Kits, See Control Board Diagnostics, page 25. If General Problem Low or Fluctuating OutputSwitch Kit, Prime/Spray Valve Kit,Control Switch Kit, General Problem Excessive Pressure Build UpUse 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 X5 Control Board Diagnostics ProX7 and ProX9Pump Diagnostics List of Kits Kit Number Models Kit DescriptionParts 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 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
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