Control System 36Service Manual – SC3000
Function Electronic Board Lay-Out and Disassembly/Assembly
Disassembly
1. Drive the machine on a level oor.
2. Turn the ignition key to “0” and disconnect the batteries.
3. Lift the recovery tank assembly.
4. Remove the 6 screws and remove the electronic component compartment cover.
5. Remove the 2 mounting screws of the function electronic board assembly and carefully remove it from
the housing.
6. Disconnect the following connections sequentially:
◦ (A) and (B) Power supply connection (+) and (-) .
◦ (C and D) Driving wheel connection (M1) and (M2).
◦ (E) Pressure switch module connection (J7A and J7B).
A
B
D
E
E
M1
M2
J7A
J7B
J8
J9
J1
J3
J4
J2
J5
J6
VA-
VA+
P100553A
Warning! Do not try to remove the pressure switch module by pulling the transparent hose:
the connection between the hose and sensor can be irretrievably damaged. Remove
the module by forcing on the PCB as shown in the gure.
OK NO
P100553B
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