Advance acoustic SC3000 26" Disc, Service Manual

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DRIVE SYSTEM
SERVICE MANUAL
ENGLISH
SC3000 26” Disc 9099052000 45
DRIVER’S SEAT SAFETY MICROSWITCH REPLACEMENT
Disassembly
Drive the machine on a level floor. 1.
Turn the ignition key to “0” and disconnect the batteries. 2.
Lift the recovery tank assembly (19) and remove the driver’s seat mounting screws. 3.
Disconnect the microswitch connector. 4.
Lift the recovery tank cover (20) and remove the remaining driver’s seat mounting screws. 5.
Remove the driver’s seat, remove the wiring harness from the hole and then remove the driver’s seat microswitch by peeling 6.
off the adhesive.
Assembly
Assemble the components in the reverse order of disassembly. 7.
Check that the machine cannot be stared when the operator is not on the driver’s seat (17). 8.
TROUBLESHOOTING
The machine does not move
Possible causes:
The battery voltage is too low (charge the battery). 1.
The drive pedal potentiometer (4) is misadjusted or broken (adjust or replace) (RV1). 2.
The function electronic board (EB1) is faulty (replace). 3.
The wiring harness is damaged (check all connections inside the electrical component compartment, included those of the 4.
function electronic board).
The drive system motor carbon brushes are worn (replace). 5.
The drive system motor (M3) is faulty (replace). 6.
The driver’s seat microswitch is faulty (repair/replace). 7.
The parking brake cannot be disengaged (see the Parking Brake chapter). 8.
There is an open in the function electronic board fuse (F2) (replace). 9.
The function electronic board (EB1) is faulty (see the Electrical System chapter). 10.
FUNCTION ELECTRONIC BOARD ERROR CODES
The function electronic board error codes indicate the drive system faults (see the Function Electronic Board Error Codes
paragraph).
A2 ENGLISH(2).indd 45 29/07/2011 17.03.03