OPTIONS, ATTACHMENTS 31.3.2 ADJUSTING Perform this adjustment when the word CAL is flashing. After the engine reaches operating temperature, tilt the bucket forward to empty it. Raise the boom until the buzzer sounds, which indicates that the calibration is complete. 31.3.3 CHECKING CALIBRATION Press the CAL switch (1) twice to make the word “SCHEC” flash. After the engine reaches operating temperature, tilt the bucket fully forward to empty it. When E-21 is displayed in the upper display panel, press the CAL switch (1) to delete the error message and perform the calibration.
If the display returns to the display shown before the calibration check, there is no need to perform the calibration. Check the calibration once a week. WA450-3MC 5-20