Graco 309063F important safety instructions Removal See Fig, Installation See Fig

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Pressure Control Repair

For these models and series only: 232900 F

232901 E

233797 E

233815 E

Pressure Control

Removal (See Fig. 15)

1. Relieve pressure; page 6.

2.Remove 4 screws (17) and control cover (16).

3.Disconnect pressure control connector from con- trol board (8).

4.Remove clip (13) from control knob (14). Slide knob (14) off of pressure control (12) and remove knob (14) and baffle (14a) from control box (1).

5.Disconnect high pressure hose at pump.

6.Remove 2 screws (2) from fluid manifold and remove manifold from sprayer.

7.Remove pressure control (12) from fitting (11).

Installation (See Fig. 15)

NOTE: The pressure control has been preset at the fac- tory to the design stall pressure.

1.Apply red thread locking adhesive (provided in kit) to the brass threads of the pressure control (12).

2.Assemble pressure control (12) into fitting (11) and torque to 140 in. lbs (12 ft. lbs). Do not pinch or damage the wires on the pressure control.

3.Assemble the fluid manifold to the control box with 2 screws (2).

4.Connect the high--pressure hose at pump.

5.Turn pressure control (12) fully clockwise to maxi- mum pressure.

6.Slide knob (14) and baffle (14a) onto stem of pressure control (12). Install clip 13.

7.Install label (15) on knob (14) with indicator point- ing at “+” on the control box (1).

8.Attach pressure control connector to control board

(8).

9.Install cover (16) with 4 screws (17).

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Contents 309063F Repair309063 SpecificationsFire and Explosion Hazard Pressurized Aluminum Parts Hazard Component Identification and Function Skin Injection Hazard Pressure Relief ProcedureRead Electric Shock Warning Burn Hazard Warning General Repair InformationNever use an outlet that is not grounded or an adapter Sprayer cord includes a grounding wire with anGrounding and Electric Requirements Sprayer requiresMotor WON’T Operate TroubleshootingLOW or Fluctuating Output Placement Read General Repair Information Motor Brush ReplacementSpin Test Electric Shock HazardInstall pump 13 Displacement Pump Re- placement, 309063 Removal On/Off Switch ReplacementInstallation 233797, a Capacitor on Motor232900, A, B 232901, aWhite ON/OFF Black Switch Green Power Cord Motor Connector 100 Vac TP1 TP2 240 VacLED Sprayer Operation Indicates Blinks Pressure Control RepairInstall motor control board 35 with five screws Pressure Adjust Potentiometer Installation Removal See Fig Installation See FigRemove pump 13 Displacement Pump Re- placement, Drive Housing ReplacementDisassembly AssemblyInstall fluid manifold Pressure Control Replace- ment, Motor ReplacementRemove pump Displacement Pump Replace- ment, Remove drive housing Drive Housing Replace- ment,Removal Displacement Pump ReplacementDimensions Technical DataGraco Information