© Oct 2020 3-2 AB18EJ&18HJ Maintenance Manual
SYSTEM DESCRIPTIONS
• The travel switch measures whether the main boom
is restracted in place. When the main boom is
retracted in place, the boom is restricted from
further retraction.
• The angle sensor which measures the relative angle
between the main boom and secondary boom is
used for identifying the operating/drive positions of
the machine and the buffer control of boom in place.
• The weight sensor measures the weight on the
platform. When the weight on the platform exceeds
the rated load, the buzzer will sound continuously,
the overload indicator will flash, the display will
indicate platform overload, the associated functions
will be restricted.
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