Operator’s Manual
2
2. IMPORTANT NOTES
The LMI and control system is an operational aid that warns a crane operator of approaching
overload conditions and of over-hoist conditions that could cause damage to equipment and personnel.
The device is not, and shall not, be a substitute for good operator judgment, experience and use of
accepted safe machine operating procedures.
The responsibility for safe operation shall remain with the crane operator who shall ensure that all
warnings and instructions supplied are fully understood and observed, Prior to operating the crane ,the
operator must carefully and thoroughly read and understand the information in this manual to ensure
that he knows the operation and limitations of the LMI.
The LMI can only protect overload of the crane in boom vertical range without crane overturn
resulted from non-vertical lifting, ground inclination, derailed wheel etc. Therefore, the operators
should not neglect the crane safety management and operation regulation even if the crane is equipped
with LIM.
The LMI can only work correctly after all adjustments have been properly set. To prevent material
damage and serious or even fatal accidents, operating mode, reeving and limit data have to be properly
set up before operating the crane.
If there is any change in the crane’s configuration data, the LMI needs to be re-calibrated.
Make sure to disconnect the power supply of the LMI from the crane before applying any welding
work on the crane body or booms. The pulse may cause damage to the electrical and electronics parts.
Hirschmann shall not be liable for any damage caused by this.
Make sure to disconnect the power supply of the LMI during thunderstorm weather. Hirschmann
shall not be liable for any damage caused by lightning.
This system can be equipped with an external key-operated switch located in the crane operator's
cab. This key-operated switch overrides control lever function switch-off by the LMI or by the hoist
limit switch system.
This switch may only be used during emergency situations, and even then only by authorized
personnel. Failure to observe these instructions could result in damage to property and severe or even
fatal injuries to personnel.
If the LMI in use fails or is not properly functioning, please do stop the operation of the crane, and
contact the service of Hirschmann or crane manufacturer. Hirschmann does not assume any
responsibility for undesirable consequences resulted from the continued operation!
CAUTION
WARNING
DANGER
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