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

 

115

ti13674a

 

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

3A0157A

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Image 24
Graco Inc 1595 Premium Hi-Boy, 695 Premium Hi-Boy, 795 Premium Hi-Boy, 3A0157A Pressure Adjust Potentiometer