OPERATION 3.11 SLEWING AND BRAKING THE SUPERSTRUCTURE Releasing the Parking Brake Move up toggle switch (4) to position . In this position the switch is automatically pulled down by spring force. NOTICE Be sure to release the parking brake before slewing the superstructure. Hydraulic Swing Brake actuated by hydraulic access Ladder and Service Arm of Central Refilling System The hydraulic swing brake will be applied automatically when the access ladder and/or the service arm of the central refilling sys- tem is not in its completely lifted position. Important Instructions for Slewing the Superstruc- ture G DO NOT swing over persons or over the unprotected cab of a truck.
G DO NOT level the ground in front of the Shovel by turning superstructure back and forth. G DO NOT jump off the rotating superstructure. G Never swing against the wall of a pit. First raise the attachment out of the pit and then start rotating the superstructure. G Start digging only after finishing the slewing operation. 227 WARNING