AVANT STAGEV 860i, Operator'S Manual

Page: 61 / 148

Avant 860i Controls and options of the Loader
61
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Boom self-levelling
Self-levelling is a system that
keeps the attachment tilted in
same position when lifting or
lowering the boom.
Self-levelling is an automatic
hydraulic system. There is a
levelling cylinder on the left side
of the boom which follows the
movements of the loader boom
and keeps the attachment level.
NOTE: Self-levelling is disabled
when the boom floating is
switched on.
When the attachment tilt is turned
to either extreme position, the
boom lift cylinder will have to work
against the pressure of the self
levelling cylinder.
To prevent extreme stresses to the
loader boom, operate the bucket
tilt control to move out from
extreme tilt before lifting or
lowering the boom.
Self levelling is disabled when the
boom floating is switched on.
Boom can't be pushed down with
hydraulic force, when floating is on.
Use boom floating only when
necessary.
.
Boom floating
800 series loaders are equipped with boom floating
as standard. Boom floating is integrated to the
joystick control lever of boom and bucket.
Boom floating is a system that allows an attachment
to follow the surface of the ground. The floating
system releases the lift cylinder and allows it to float
up and down as the attachment is on the ground.
To activate the boom floating:
1.
Lower the attachment on the ground to the
operating position described in the operator's
manual of the attachment.
2.
Push the boom control lever towards front
(lowering of the boom). Push the lever further
towards front so that it locks to its front
position.
Activating the boom floating also
deactivates the Smooth drive
system. The Smooth drive should
be switched off whenever not
actively using it.
Some attachments have a floating
linkage built in the attachment
coupling, making use of the
floating on the loader unnecessary.
Refer to the operator’s manual of
the attachment for more
information.
After using the boom floating
During boom floating, some air may become trapped
into the lift and tilt cylinders. To avoid unexpected or
inaccurate movements of the boom, the air in
cylinders must be removed by moving the boom to
extreme lift positions after switching off the floating
system.