ABL77 Service Manual
Chapter 6: Replacements
Single Valve,
Continued
Removing the
old valve
(continued)
Step Action
5.
Disconnect the cable of the malfunctioning valve from the valve board
connector; J7, J8, J9, J10 or the valve L3 Y-cable (Y-cable) on J4.
6.
Unscrew the two screws securing the malfunctioning valve to the
valve board. Lift the valve from the valve board and package properly
for return to SenDx for investigation.
Valve board
diagram
Figure 6-10 shows the wiring connections of the current design valve board.
41449 / B
41477
SERVICE BOARD ABL70-77
ASSY REV :
K1
J5
R2
R18
REVISION
J
1
0
P
N
90
2-
81
1
J1
J9
SENSOR BOSS
SENSOR
LUER
J6
J4
J8
J7
J3
12
1
13
24
J2
2587
J6
J5
J4
J9
J8
J7
L2
L1
L3
J10
L3
COM N.C
.
N.O.
L1
COM N.C
.
N.O.
L2
COM N.C
.
N.O.
J5
↑
J4
J6
J7
J8
J9
J10
Figure 6-10
Items and
descriptions
The following table describes the cable connections in figure 6-10.
Item Function
J4
Waste pump cable connection
J5
Roller pump cable connection
J6
Opto-sensor cable connection
J7
Former valve L3 connection
J8
Valve L1 connection
J9
Valve L2 connection
J10
New valve L3 connection
Continued on next page
Rev. F
6-19