Graco 309063F important safety instructions Pressure Adjust Potentiometer

Page 21

Pressure Control Repair

For these models and series only: 232900 A, B, C, D, E

232901 A, B, C, D

233797 A, B, C, D

233815 A, B, C, D

232903 A, B

232906 A, B

Pressure Control Transducer

Removal

Refer to Fig. 10 and 11, 13 or 14 depending on sprayer voltage.

1. Relieve pressure; page 6.

2.Remove four screws (18) and cover (39).

3.Disconnect lead (E) from motor control board (35).

4.Remove two screws (22) and filter housing (45).

5.Thread transducer lead plastic connector down through transducer grommet (28).

6.Remove pressure control transducer (52) and packing o-ring (51) from filter housing.

Installation

1.Install packing o-ring (51) and pressure control transducer (52) in filter housing (45). Torque to 30--35 ft-lb.

2.Thread transducer lead plastic connector up through transducer grommet (28).

3.Install filter housing (45) with two screws (22).

4.Connect lead (E) to motor control board (35).

5.Install cover (39) with four screws (18).

Pressure Adjust Potentiometer

Removal

Refer to Fig. 10 and 11, 13 or 14 depending on sprayer voltage.

1. Relieve pressure; page 6.

2.Remove four screws (18) and cover (39).

3.Disconnect all leads from motor control board (35).

4.Remove five screws (36) and board (35)

5.Remove potentiometer knob (27), sealing shaft nut (33) and pressure adjust potentiometer (26).

Installation

1.Install pressure adjust potentiometer (26), sealing shaft nut (33) and potentiometer knob (27).

a.Turn potentiometer fully clockwise.

b.Install knob at full clockwise position.

2.Install board (35) with five screws (36).

3.Connect all leads to motor control board (35).

4.Install cover (39) with four screws (18).

309063 21

Page 20 Page 22
Image 21
Page 20 Page 22
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 InformationGrounding and Electric Requirements Sprayer cord includes a grounding wire with anSprayer requires Never use an outlet that is not grounded or an adapterMotor WON’T Operate TroubleshootingLOW or Fluctuating Output Placement Spin Test Motor Brush ReplacementElectric Shock Hazard Read General Repair InformationInstall pump 13 Displacement Pump Re- placement, 309063 On/Off Switch Replacement InstallationRemoval 232900, A, B Capacitor on Motor232901, a 233797, 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 FigDisassembly Drive Housing ReplacementAssembly Remove pump 13 Displacement Pump Re- placement,Remove pump Displacement Pump Replace- ment, Motor ReplacementRemove drive housing Drive Housing Replace- ment, Install fluid manifold Pressure Control Replace- ment,Removal Displacement Pump ReplacementDimensions Technical DataGraco Information
Top Page Image Contents