OPERATION MACHINE OPERATIONS AND CONTROLS Refill And Finishing Work 0. When refilling after excavation and when smoothing the ground surface, use the blade. Side Ditching Work 0. When the boom offset is used, it is possible to carry out side ditching work in confined spaces without swinging the upper works. Operations In Confined Spaces 0. When operating in a confined space, set the work equipment in the posture in the diagram on the right. This will allow the machine to swing freely in any area where it is possible for the tracks to enter. Minimum swing posture 1. Offset the boom to the right. 2. Extend the arm cylinder and bucket cylinder fully, and fold the work equipment. 3.
Extend the boom cylinder fully. 4. Offset the boom to the left and move to a point just before the interference prevention device is actuated. With a machine equipped with an operator's cab, a within- track shoe swing cannot be attained even if it takes a pos- ture for the min. turning radius, as the cab exceeds the shoe width. 3-69 CAUTION