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Service Manual – SC500
05 - Control System, Magnetic Smart Key
Removal and Installation
Main machine controller (EB1)
1
Drive the machine on a level floor, remove the ignition key, and disconnect the red battery connector.
2 Lift the recovery tank
3 Remove the 7 screws and remove the electronic component compartment cover
4 Disconnect the following connections sequentially (Figure 12):
◦
(A) and (B) Board power supply connection (B+) and (B-)
◦
(C) and D) Brush motor connection (BR+) and (BR-)
Figure 12:
B
D
B
D
A
C
A
C
5 Disconnect the following connections sequentially (Figure 13):
◦
(E) and (F) Drive system motor connection (M1) and (M2)
◦
(G) and (H) Vacuum motor connection (VA+) and (VA-)
Figure 13:
E
E
G
G
F
F
H
H
