SERV1851 02/08
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Text Reference Electronic Control System
BACK-UP SYSTEM Engine ECM Engine Speed Selector Switch
Key Start Switch
J1
J2
Resistor
Machine ECM
Power Shift Solenoid Swing Brake Solenoid
37
Back-up System The "Back-up System" allows an operator to manually control a limited amount of machine functions to move a machine in the event that other machine functions have failed. The main back-up switch is located to the right rear of the console. When the main back-up switch is turned to the MAN position, the power to the Machine ECM is removed, and the "Limited Mobility Mode" is activated. In Limited Mobility Mode, the engine speed dial does not function. The engine speed can be adjusted by the engine speed selector switch that is located to the right rear of the console. Also, the AEC switch and the low idle switch will not function. The Monitoring System will display the message "LIMITED MOBILITY MODE" on the Monitoring System and the Monitoring System will sound the action alarm. The back-up switch provides the minimum machine functions. The back-up switch allows a direct connection, through a resistor, between the key start switch and the Engine ECM, power shift solenoid, and swing brake solenoid.
