Graco ultimate mx ii, Repair Manual

Page: 25 / 48

Pressure Control Board
311365H 25
240 Vac Filter Board
Removal
1. Remove four screws (38) and cover (96).
2. Disconnect display connector (A) from motor
control board (52).
3. Remove bottom two screws (39). disconnect
potentiometer connector (C) from motor control
board (52). Disconnect power cord connectors
(D) and filter board connectors (J) from
ON/OFF switch (33) and remove control panel
(68).
4. Disconnect WatchDog switch connector (X)
from motor control board.
5. Disconnect motor control board power
connectors (K) from filter board (146).
6. Remove four screws (163) from filter board
(146).
Installation
1. Install filter board (146) with four screws (163).
2. Connect motor control board power connectors
(K) to filter board (146).
3. Connect filter board power connectors (J) to
top two terminals of ON/OFF switch (33) and
power cord connectors (D) to bottom two
terminals of ON/OFF switch.
4. Connect potentiometer connector (C) to motor
control board (52).
5. Connect WatchDog switch (X) to motor control
board.
6. Install control panel (68) with two screws (39).
7. Connect display connector (A) to motor control
board (52).
8. Install cover (96) with four screws (38).
Relieve pressure; page 9.
240 Vac
96
38
39
115
33
J
A
163
146
61 K
82
C
C
E
80
A
20
67
E
52
27
34
82
68
X
39
ti12995b
69
102
Tighten 2 screws
to 14-17 in-lb
(1.58-1.92 N•
F
H
G