EXCAVATOR RATED LIFT CAPACITY TABLES WARNING Let everybody be away from the boom cylinder. While lifting operation, boom, arm, bucket hoses might burst and then high-pressure oil will be ejected at high speed. If that failure mode takes place, handling weight or front structure might fall by its gravity to the ground to cause fatal injury to the person. When changing the hoses record the part numbers of the hoses to factory log book. Do the service job under the company's serviceman. Figure 46 WARNING All rated lift capacities are based on the machine and the load both remaining level at all times. DO NOT EXCEED THE RATED LIFT CAPACITY.
Lifting loads greater than those shown in the rated capacity tables can cause catastrophic equipment failure and/or structural collapse of the machine. To operate safely the excavator should be on a firm, level and uniformly supporting surface. The operator is expected to make due allowance for all specific work site and lift related conditions, and respond to changes in those conditions that could pose a hazard. The following could all cause hazardous conditions and accidents or injuries: Soft or uneven ground. Unlevel terrain. Side loads. Modifications or poor maintenance of the excavator. Failure to lift squarely over the end or over the side of the machine.
When a load is in the air, the operator must remain alert. Avoid side loads that may be caused by uneven slings, traveling with the load or swinging too quickly. The load can become unbalanced if the hook line is twisted and starts to rotate. If the surface area of the load is large enough, wind gusts can create side loads. Keep the bucket hook point directly over the load. Tag lines on opposite sides of the load can help maintain greater stability against side loads and wind gusts. OP001759 Safety 1-46