Avant 850
Description of the loader
37
When the loader is equipped with ballasted tyres, the
following symbol must be applied to a visible location
on the loader frame near tyres. If you replace the
tyres and install normal tyres, make sure to also
remove this label.
Auxiliary hydraulics oil flow
The following graphs show auxiliary hydraulics
output flow at different engine rpm levels. The 1-
pump setting is illustrated with dashed line and 2-
pump setting with uniform line.
Some attachment may work optimally at certain flow
level, use the graph to estimate correct engine rpm
setting.
Maximum auxiliary hydraulics oil
flow cannot be used with all
attachments. Check correct engine
rpm for the attachment with the
help of this graph and the
Operator's Manual of the
attachment. Attachment may get
damaged, run too fast, or it may be
difficult to control precisely when
oil flow is too high.
.
1 and 2 pump selection switch
Some attachments require high flow of hydraulic oil
in order for the attachment to work in the most
effective way. The loader is equipped with two
auxiliary hydraulic pumps. Both pumps are always
running, with this switch the output of both pumps
can be directed to the attachment, and to the boom
telescope function at the same time.
If high flow is needed, select the 2-pump setting, see
page 37. See the operator’s manual of each
attachment for recommended and maximum oil flow
levels.
If the attachment requires only low power to operate,
in some cases it can be useful to use the two pump
setting while using low engine rpm. This reduces the
noise of the loader. If the attachment or loader stalls,
switch to 1-pump setting and increase engine rpm.
Check the recommended and maximum input of
hydraulic oil for each attachment from the operator's
manual of the attachment.
In normal use, keep the pump
selection lever at the 1-pump
setting to avoid overspeed of the
attachment and stalling of the
loader. Keeping the lever at the 2-
pump setting unnecessarily will
decrease the efficiency of the
hydraulic system of the loader.
This switch will also affect the
speed of the telescopic function of
the boom.
WARNING
Risk of thrown objects,
increased noise and vibration,
and equipment damage - Check
the maximum oil flow of each
attachment.
Some attachments
may eject material at high speed
when operated too fast. Damaged
machine parts may also be
ejected. Too fast operation will
cause increased noise, vibration,
and wear. Check the operator's
manual of each attachment and
adjust the auxiliary hydraulics oil
flow accordingly. See page 37.
Summary of Contents for Avant 850
Page 1: ...English Operator s Manual 2020 A441827EN 2020 1 2020 www avanttecno com...
Page 128: ...Avant 850 128...
Page 132: ...Avant 850 132 Notes...
Page 133: ...Avant 850 133 Notes...
