Graco 233627, Instructions-Parts List Manual

Page: 19 / 40

Pressure Adjust Potentiometer
309414N 19
Pressure Adjust Potentiometer
Removal
1. Relieve pressure; page 7.
2. Fig. 6. Remove four screws (93) and display/cover
(139).
3. Disconnect lead (D) from control board (109).
4. Loosen set screws on potentiometer knob (19) and
remove knob, shaft nut, lockwasher and pressure
adjust potentiometer (81).
5. Remove seal (148) from potentiometer (81).
Installation
1. Install seal (148) on potentiometer (81).
2. Fig. 6. Install pressure adjust potentiometer (81),
shaft nut, lockwasher and potentiometer knob (19).
a. Turn potentiometer shaft (81) clockwise to inter-
nal stop. Assemble potentiometer knob (19) to
strike pin on plate (23).
b. After adjustment of step a., tighten both set
screws in knob 1/4 to 3/8 turn after contact with
shaft.
3. Connect lead (D) to control board (109).
4. Install display/cover (139) with four screws (93).