Hyundai HL630VL, Руководство оператора

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Operation Controls 2-17
2 Arm floating device:
If the arm manipulating handle is pushed forward to the
extreme front position, the arm manipulating handle will
be stuck by arm floating holding magnet (in this case, the
driver can release his hand, and the arm manipulating han-
dle will not return back to the middle position), and at this
time, the arm is in floating state. If you want to remove the
floating state, you only need to pull the arm manipulating
handle back to the middle position.
When you manipulate the arm to lower down, you can
push the arm manipulating handle to the floating position
and the will then descend under the action of gravity. At
this time, the driver can use his right hand to perform other
operations (e.g., lay down the bucket), thus improving the
working efficiency.
When you performing scraping or shoveling & loading,
push the arm manipulating handle to the floating posi-
tion, and the bucket will fluctuate as the fluctuation of the
ground surface, thus avoiding the damaging of the road
surface.