S220/S221/S230/S231/Z200 4-3
Description 4
Figure 4-2
4.2 Swivel unit and axle support
Two swivel cylinders are fed by a separate gear-type pump
via a servo valve. The revolving seat is connected to the
cylinders by a chain drive and is thus completely free of
play. Swivelling can be carried out simultaneously with
lifting of the bucket arm without mutual interference.
The bucket’s swivelling radius is 90° to the right or to the
left.
If the bucket is swivelled more than approx. 30°, the axle
support system is automatically activated. The load-side
support cylinder that affects the rear axle is subjected to
hydraulic pressure by the force of the load via the support
valve, counteracting the swivelled load.
NOTE
The axle support is deactivated when swivelling
back.
4.3 Floating position
The loader is equipped with a floating position function that
allows work such as levelling (grading) on uneven ground
to be performed. To do this, move the hand lever for the
working hydraulics (4-9/6) forwards beyond its pressure
point.
The hand lever remains in this position until the bucket arm
is to be raised again by moving the hand lever in the
opposite direction.
DANGER
The floating position may only be activated when
the bucket arm is in the lowermost position.
4.4 Bucket position indicator
The driver can read the position of the bucket using clip
marks on the right tip cylinder. When the marks on the tip
cylinder and the end of the control rod (4-2/arrow) form a
line, the bucket floor is parallel to the ground.
4.5 Lifting device suspension (option)
When the loader must be driven over larger distances,
especially with a loaded bucket, the lifting device
suspension (4-12/10) should be activated to avoid resonant
motion. This becomes even more important with increasing
unevenness of the terrain and increasing speed of the
loader.
CAUTION
- The lifting device suspension must only be
used for driving over long distances, not for
working with the loader.
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