General Information
© PAT
Rev. - 12/18/00 // CSH.
190118_-.DOC
1
1 GENERAL
INFORMATION
The PAT Load Moment Indicator (LMI) DS 350 has been designed to provide the crane operator with the
essential information required to operate the machine within its design parameters.
Using different sensing devices, the Load Moment Indicator monitors various crane functions and provides the
operator with a continuous reading of the crane’s capacity. The readings continuously change as the crane
moves through the motions needed to make the lift.
The LMI provides the operator with information regarding the angle of the boom, working radius, rated load and
the total calculated weight being lifted by the crane.
If non permitted conditions are approached, the DS 350 Load Moment Indicator will warn the operator by
sounding an audible alarm, lighting a warning light and locking out those functions that may aggravate the crane’s
condition.
Refer to operator’s manual 031-300-190-089 for console operating instructions.
2 WARNINGS
The LMI 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
crane operating procedures.
The responsibility for the safe crane 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 indicator and crane.
Proper functioning depends upon proper daily inspection and observance of the operating instructions set forth in
this manual. Refer to Section
Pre-Operation Inspection and Calibration Verification
of the operator’s manual.
The LMI can only work correctly, if all adjustments have been properly set. For correct adjustment, the
operator has to answer thoroughly and correctly all questions asked during the setup procedure in
accordance with the real rigging state of the crane. To prevent material damage and serious or even
fatal accidents, the correct adjustment of the LMI has to be ensured before starting the crane
operation.
