BI010575
Bucyrus International, Inc.
BI010575 8750 Walking Dragline
Operator’s Seat and Controls
As the first walking step commences and the shoes move off their PARK position, the swing and hoist brakes will automatically set if they had not already been set manually. During extended travel over long distances, it sometimes becomes necessary to alter the direction of travel or position the bucket. This can be done without transferring to the DIG mode. Stop the walking shoes in the PARK position. Check that the SWING CONTROL indicator is lit and the propel brakes are set. Press the EXCITATION ON pushbutton, and then release the Swing brakes. Reposition the dragline to the desired direction of travel. To continue propelling, press the EXCITATION ON pushbutton and release the propel brakes. During walking, if a ground roll develops at the front edge of the tub, “heel” the bucket for a couple of steps. If the tub roll persists, swing the machine 30º - 40º to one side and propel one or two steps. This will spread the roll over the ground. Then return to the line of travel desired. Manual No. 10863
88
March 2011
