Pressure Control
20 308870G
Pressure Adjust Potentiometer
NOTE: All Steps refer to FIG. 22.
Removal
1. Relieve pressure, page 6.
2. Remove five screws (307) and cover (322).
3. Disconnect lead (D) from control board (302).
4. Loosen set screws on potentiometer knob (313) and
remove knob, shaft nut, lockwasher (310) and pres-
sure adjust potentiometer (310).
5. Remove seal (311) from potentiometer (310)
Installation
1. Install seal (311) on potentiometer (310).
2. Install pressure adjust potentiometer (310), shaft
nut, lock washer (310) and potentiometer knob
(313).
a. Turn potentiometer shaft (310) clockwise to
internal stop. Assemble potentiometer knob
(313) to strike pin on plate (312).
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 (302).
4. Install cover (322) with five screws (307).
FIG. 22
322
307
A309
302
303
E
D
313
310
318z
318aa
318a
1
Locate switch terminals as shown
1
315 319
To Next Page
Loading...
