OPERATION TROUBLES AND ACTIONS Electronic Control System 0. If any error code is displayed on the depth display portion (1) of the monitor panel, follow the procedure given in the table below for the action to take after self diagnosis. Machine Monitoring System 0.
3-105 Error code Machine condition Probable causes Action 21 Automatic stop distance is too far Abnormality in model selector sign al Operation can still be carried out, but have the machine checked immediately 22 Automatic stop distance is too far Abnormality in work equipment selector signal 31 Boom RAISE, arm IN, offset left can- not be carried out Abnormality in boom angle sensor Use the emergency work equipment actuation switch to move the machine to a safe place, then have the machine checked immediately.
32 Boom RAISE, arm IN, offset left can- not be carried out Abnormality in arm angle sensor 34 Boom RAISE, arm IN, offset left can- not be carried out Abnormality in offset angle sensor 41 Impossible to carry out any opera- tion of work equipment, impossible to operate swing Abnormality in basic pressure lock solenoid valve Use the emergency work equipment actuation switch to move the machine to a safe place, then have the machine e checked immediately. Depending on location of failure, it may - be impossible to carry out operations even when the emergency work equip- ment actuation switch is turned ON, so in such cases, have the machine checked immediately.
ve 42 Boom RAISE, arm IN, offset left can- not be carried out Abnormality in offset solenoid valv 44 Boom RAISE, arm IN, offset left can- not be carried out Abnormality in boom LOWER sole noid valve 51 Boom RAISE, arm IN, offset left can- not be carried out Abnormality in boom RAISE sole- noid valve 52 Boom RAISE, arm IN, offset left can- not be carried out Abnormality in arm IN solenoid val 61 Impossible to carry out any opera- tion of work equipment, impossible to operate swing Abnormality in automatic stop posi tion If the emergency work equipment actua- tion switch is used to move bucket to the - front or to the right, the self diagnosis is canceled and it becomes possible to operate the machine again, but have the machine checked immediately.
No error code is displayed, but it is impossible to carry out any work equipment operation or swing operation. Have the machine checked immediately.