Graco ti14838b, ti15034a, ti15036b, ti15035b Pressure Adjust Potentiometer

Page 24

Troubleshooting

Pressure Adjust Potentiometer

Removal

Perform Pressure Relief Procedure; page 8. Wait 5 minutes before servicing.

1. Remove four screws (38) and cover (96).

96

38

ti13493a

2.Remove two screws and control panel.

3.Disconnect potentiometer connector (C) from motor

control board (95).

95

C

ti12997a

4.Use allen wrench to loosen two screws on knob (34).

34

ti13207a

5.Remove gasket (115), nut and potentiometer (82) from control panel (68).

	68
82	82
	82
115	ti13674a
115

Installation

1.Install gasket (115), nut and potentiometer (82) on control panel (68). Torque nut to 30-35 in-lb (3.25 - 4.0 N•m).

68

82

82

115

ti13674a

2.Rotate new potentiometer shaft to highest pressure setting (fully clockwise) and install knob (34). Use allen wrench to tighten two screws on knob.

34

ti13338a

3.Connect potentiometer connector (C) to motor con- trol board.

95

C

ti12997a

4.Install control panel and tighten two screws.

5.Install cover (96) with four screws (38).

96

38

ti13493a

24

3A0157B

Image 24

Contents Electric Airless Sprayers MarkModels Ultra MAX lIlTable of Contents Grounding Extension CordsFire and Explosion Hazard Skin Injection HazardEquipment Misuse Hazard Electric Shock HazardPressurized Aluminum Parts Hazard Moving Parts HazardComponent Identification Pressure Relief Procedure Power Requirements GroundingExtension Cord PailsTroubleshooting Perform Pressure Relief ProcedureWhat to Check What to do Type of Problem Mechanical/Fluid FlowFollow Pressure Relief Procedure on What to Check What to do Type of Problem Type of Problem What to Check HOW to Check ElectricalCheck to see if transducer and control board Step Check Motor Thermal Switch Unplug thermal Is not correct, replace motor Sprayer Will Not Shut Off YESSprayer Will Not Run Step Removal Installation VAC and 110 VAC Motor Control Board33 D 115 VAC Filter Board RemovalPressure Adjust Potentiometer Pressure Control Transducer Install control box 61 and control panel 68 with four screws 3A0157B Drive and Bearing Housing Replacement DisassemblyAssembly Drive and Bearing Housing Replacement Motor Replacement InstallationInstall Motor Shroud RemovalMotor Replacement Displacement Pump Replacement for 695/795/Mark Perform Relieve Pressure ProcedureTi7169a Displacement Pump Replacement 1095/1595/Mark Perform Pressure Relief Procedure,Place u-bolt on pump door protrusion Attach drain hose to sprayer Hose Reel Grease shaft Reed Switch Replacement RemovalInstallationWiring Diagram 120V ModelsON/OFF 120V Models with 15/20 Amp Switch Thermal Switch Motor Leads Sensor Dip Switch AutoClean Watchdog240V Models Digital Display Potentiometer Pressure Transducer3A0157B Graco Standard Warranty Graco Information