Cha pte r B [Error code] [W0282] "Jack reaction force lower limit"
[W0283] "Jack reaction force upper limit"
[W0286] "Operation detector is not in neutral position"
[W0287] "Out of level" [W0999] "Back-up battery running down"
User Mode Buzzer AML built-in buzzer
AML built-in buzzer
AML built-in buzzer
AML built-in buzzer
AML built-in buzzer
B - 20
Cause The min. value of the outrigger jack supporting pressure is below the lower limit warning value. The max. value of the outrigger jack supporting pressure is over the upper limit warning value.
Cha pte r B Remedy Check the outrigger status symbol on the AML, and change the crane operation status so that each jack supporting pressure value becomes the middle of the maximum and minimum values.
A control lever is not in neutral position when power is turned on.
Set all the control levers in neutral positions. If the AML buzzer does not stop, inspection and maintenance the crane.
The inclination angle of the slewing table has exceeded the specified limit.
Stop the crane operation and check the installation ground.
When the power is turned on, the battery for the AML built-in clock is low.
Replace the battery.
W301-0471E
