T025052E
Load Moment Indicator (AML-L) WARNING
When having a load lifted up in the over-front area swing toward over-side area, be extremely careful not to overload the crane. If, when swinging a load toward the over-side area, the moment ratio indication on the load moment indicator exceeds 100% and the alarm buzzer sounds, stop swinging immediately. Then lower the load or swing the boom back.
The load moment indicator (AML-L) is intended as an aid to the operator. Under no condition should it be relied upon to replace use of RATED LIFTING CAPACITY CHART and Operating Instructions. Sole reliance upon the load moment indicator aids in place of good operating practice can cause an accident. The operator must exercise caution to assure safety. The load moment indicator operates properly only when it is used exactly as instructed in this manual. If you do not follow the specified load moment indicator and crane operating procedures, the crane could overturn or be damaged, causing a serious accident. Be sure to observe the following precautions for safe operation. • Never perform any operation with the load moment indicator deactivated. • Place the crane on firm and level ground with the outriggers extended and adjust the crane so that it is level (when outriggers extended). • Before operating on rubber, check that the tires have the specified air pressure. (when outriggers not extended) • Before starting operation, perform pre-operational checks on the load moment indicator to ensure that it is operating properly. • Swinging will not stop automatically even if overloading occurs. When lifting a load on rubber, note that the 360-degree capacity is less than the over-front capacity.
Over-front
T00668E
• When the load moment indicator exceeds the specified value, the alarm will sound intermittently. Slow the crane operation and take great care. (For the specified value, see the "Load Moment Indicator System" section.) • Do not lift a load on the boom with the jib mounted. If this must be done by unavoidable reasons, a boom lift status, and not a jib lift status, should be selected on the load moment indicator. This kind of operation can be dangerous if the moment ratio exceeds 90%. Watch the bar-type moment ratio indicator carefully, and make sure that it stays within the green zone during the operation.
Green 90%
T02881E
Load Moment Indicator (AML-L)
60
Load Moment Indicator (AML-L)
