OM ET18/20/24 us 1.3 * et18_20_24b510.fm 5-15
5
Rotating the upper carriage
Accident hazard! Upper carriage can rotate a little bit
farther.
Can result in severe injury or death.
► Until the hydraulic fluid reaches operating temperature, the
upper carriage can rotate farther than expected after the
control is placed in the neutral position.
► If the machine is equipped with an extra weight (option), the
upper carriage projects beyond the tracks when it is rotated.
► Ensure that there are no obstacles in the immediate area
before rotating the upper carriage.
► Fast actuation of the control lever rotates the upper carriage
fast, slow actuation of the control lever rotates the upper
carriage slowly.
► If the upper carriage needs to be rotated on a slope, let the
engine run at idling speed and actuate the control lever very
slowly. Proceed with extreme care and avoid abrupt
movements if the bucket is full.
Rotating the upper carriage to the left
Push the left-hand control lever to the left.
Rotating the upper carriage to the right
Push the left-hand control lever to the right.
Swivel unit brake
The swivel unit brake is enabled if:
• the control lever base is raised.
• Starter is turned to position 0 or the engine is stopped.
This secures the upper carriage against rotation.
Fig. 138: Rotating the upper carriage to the left
Fig. 139: Rotating the upper carriage to the right
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