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OPERATION
Switch Positions, illustration Z25223
"0" Parking brake OFF
"1" Parking brake ON
Applying the Parking Brake
Pull out toggle switch (4) against spring force and move down to
position "1".
Releasing the Parking Brake
Move up toggle switch (4) to position "0". 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
DO NOT swing over persons or over the unprotected cab
of a truck.
DO NOT level the ground in front of the Shovel by turning
superstructure back and forth.
Never swing against the wall of a pit. First raise the
attachment out of the pit and then start rotating the
superstructure.
Start digging only after finishing the slewing operation.
WARNING
3.12 SLEWING AND BRAKING THE SUPERSTRUCTURE
251
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