Graco 258906 - Manual (Page 23)

Flow Control Adjust Potentiometer
3A0246C 23
Flow Control Adjust
Potentiometer
Removal
1. Perform Pressure Relief Procedure, see page 4.
Wait 5 minutes before servicing.
2. Remove four screws (33b) and cover (33k).
3. Remove bottom two screws (61) and remove control
panel (37).
4. Disconnect potentiometer connector (D) from motor
control board (24).
5. Use hex wrench to remove control knob (42).
6. Remove gasket (56), nut, spacer (88) and potenti-
ometer (55) from control panel (37).
Installation
1. Install gasket (56), nut, spacer (88) and potentiome-
ter (55) on control panel (37). Torque nut to 30-35
in-lb (3.25-4.0 N•m).
2. Install control knob (42): Check control knob align-
ment to potentiometer shaft. Turn shaft fully clock-
wise and attach knob in full ON position with a hex
wrench. Make sure set screw is tightened flat
against potentiometer shaft.
3. Connect potentiometer connector (D) to motor con-
trol board (24).
33b
33k
ti15786a
ti15795a
37
61
D
24
ti15791a
42
ti7258a
88
56
37
55
ti15794a
88
56
37
55
ti15794a
42
ti13338a
24
D
ti15791a