Table of Contents
Advertisement
Removal
1.
Relieve pressure; page 4.
2. Fig. 15. Remove four screws (24) and
cover (22).
3. Disconnect at control board (21):
D Lead (D) from potentiometer.
D Lead (E) from transducer.
D Remove ON/OFF switch (48) connector (B).
4. Remove six screws (119) from control board (21)
and green ground wire.
5. Remove pinion housing connector (85) at backside
of pressure control. Remove jam nut (21a) and
control board (21).
Removal
1.
Relieve pressure; page 4.
2. Fig. 15. Remove four screws (24) and
cover (22).
3. Disconnect lead (E) from control board (21).
4. Remove two screws (152) and transducer guard
(151) from control housing (11). Pull transducer
connector through rubber grommet (138).
Removal
1.
Relieve pressure; page 4.
2. Fig. 15. Remove four screws (24) and
cover (22).
3. Disconnect lead (D) from control board (21).
4. Loosen set screws on potentiometer knob (46) and
remove knob, shaft nut, lockwasher (93–A) and
pressure adjust potentiometer (93–B).
5. Remove spacer (64) from potentiometer (93–B).
14
309654
Pressure Control
Control Board
Pressure Control Transducer
Pressure Adjust Potentiometer
Installation
When installing replacement control board, follow
instructions with control board to set model type.
1. Fig. 15. Install control board (21) and jam nut
(21a). Install pinion housing connector (85) at
backside of pressure control. Ensure locking ring
fully detents on connector.
2. Install green ground wire and control board (21)
with six screws (119).
3. Connect to control board (21):
D Connect ON/OFF switch (48) connector (B).
D Lead (E) to transducer.
D Lead (D) to potentiometer.
5. Remove pressure control transducer (49) and
o-ring (51) from filter housing (54).
Installation
1. Fig. 15. Install o-ring (51) and pressure control
transducer (49) in filter housing (54). Torque to
30–36 ft-lb.
2. Install transducer connector and rubber grommet
(138) in control housing (11). Install transducer
guard (151) on control housing with two screws
(152).
3. Connect lead (E) to motor control board (21).
4. Install display (22) with four screws (24).
Installation
1. Install spacer (64) on potentiometer (93–B).
2. Fig. 15. Install pressure adjust potentiometer
(93–B), shaft nut, lockwasher (93–A) and poten-
tiometer knob (46).
a. Turn potentiometer (93–B) shaft clockwise to
internal stop. Assemble potentiometer knob
(46) to strike pin on plate (26).
b. After adjustment in step a, tighten both set
screws in knob 1/4–3/8 turn after contact with
shaft.
3. Connect lead (D) to control board (21).
4. Install cover (22) with four screws (24).
Advertisement
Table of Contents
