Muratec MFX-2500 Field Engineering Manual page 248

(6) 28 Shift Tray shift motion failure
Step Check Item
1 Does the Shift Tray move in the initial
operation?
2 Does the Shift Tray slide smoothly when
the gear is turned manually with the Shift
Motor removed?
3 Is an output signal being sent from the
Main Board to Shift Motor?
4 Are the Shift Home Sensor and its light
blocking plate dirty?
5 Is the Shift Home Sensor output signal
properly applied to the Main Board?
Result
YES Check step 4.
NO Check for contamination and improper
installation.
YES Check the wiring between the Main
Board and Shift Motor and, if it is intact,
change the motor.
NO Change the Main Board.
YES Remove foreign matter or clean.
YES Change the Main Board.
NO Check the wiring between the Main
Board and Shift Home Sensor and, if it is
intact, change the sensor.
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Action