User's Manual

Digital Tracking System
12 311021U
Digital Tracking System
ON/OFF Switch
Removal
1 Relieve pressure, page 7.
2 Fig. 2. Remove screws (103) and front cover (31).
3 Pull display connector wings (A) open on PC board
and pull display connector out.
4 Disconnect ON/OFF switch connector (B) from PC
board.
5 Press in on two retaining tabs on each side of
ON/OFF switch (15g) and remove switch.
Installation
1 Fig. 2. Install new ON/OFF switch (15g) so tabs of
switch snap into place on inside of pressure control
housing.
2 Connect ON/OFF switch connector (B) to PC board.
3 Push display connector into PC board and close
display connector wings (A) on PC board.
4 Install cover (31) with two screws (103).
PC Board
Removal
1 Relieve pressure, page 7.
2 Fig. 2. Remove two screws (103) and cover (31).
3 Pull display connector wings (A) open on PC board
and pull display connector out.
4 Note on paper, lead connections to the control
board. Disconnect leads from control board (15d).
5 Remove four screws (15k) from control board.
Installation
1 Fig. 2. Install control board (15d) and four screws
(15k). Torque to 105-115 in-lb.
2 Connect leads to control board. (Refer to note on
lead connections.)
3 Push display connector into PC board close display
connector wings (A) on PC board.
4 Install cover (31) with two screws (103).
Pressure Control Transducer
Removal
1 Relieve pressure, page 7.
2 Fig. 2. Remove two screws (103) and cover (31).
3 Disconnect transducer lead (C) from control board
(15d).
4 Remove pressure control transducer (259) and
o-ring (124) from filter housing.
Installation
1 Fig. 2. Install o-ring (124) and pressure control
transducer (259) in filter housing. Torque to 35-45
ft-lb.
2 Connect transducer lead (C) to motor control board
(15d).
3 Install cover (31) with two screws (103).