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[2] DISPLAY OF THE MOMENT LIMITER ERROR MESSAGES
The moment limiter performs self-diagnosis on the moment limiter display unit when an error is issued by
the boom angle gauge, boom length gauge, pressure sensor, or when a circuit is opened or a connector is
disconnected.
The result is displayed on the “Rated total load Display” of the moment limiter display unit by an error code
to notify the operator of the error.
Immediately stop the use of the crane when an error code is displayed.
See “Operation 2.4.10 Moment Limiter Error Causes and Actions to be Taken”.
[3] LIMITATION OF OPERATION DUE TO THE BLADE POSITION
Indications and warning are issued against a load hoisting
operation in a condition where the Blade is lowered and a load is
imposed. At the same time, crane functions below are interrupted:
• Indications and warnings:
• Rated total load display in the Moment limiter will blink and
indicate “bld”.
• Buzzer sounds intermittently.
• The red lamp of the working status lamp lights up.
• Functions to be interrupted:
• Winch hoisting
• Winch lowering
• Boom derricking
• Boom telescoping
When a load is imposed on the Blade and in addition to that a
load is hoisted, the above conditions continue.
Either clearing the Blade from the ground or to lower the hoisted
load to the ground will release these indications and warnings,
and then the crane resumes these functions.
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