9. Check and tightening of bolts, nuts
and fittings
Check tightness of bolts, nuts and hydraulic fittings
regularly. However, do not overtighten; tighten hydraulic
fittings only if necessary. Wheel nuts should be tightened
250 Nm.
Tighten wheel nuts after first 5 operating hours.
Check tightness of wheel nuts regularly.
10. Check pressure of hydraulic system
Pressure checking points and pressure settings for
different functions are as follows:
Auxiliary hydraulics: Pressure
is checked by mounting the
manometer in the female auxiliary
hydraulics quick coupling, with
full revs and by turning the aux.
hydraulics control lever. Pressure
is measured with full engine revs.
Pressure setting should be 185 bar.
Drive pressure: In order to check
the pressure in the drive circuit one needs to mount a
pressure gauge in the pressure line in each and every
case, if pressure seems to be clearly wrong. There are
two pressure relief cartridges which have fixed 280 bar
pressure setting.
It is recommended that pressures should only
be checked by a competent and experienced
technician. Call your AVANT dealer if you need
assistance.
11. Adjust pressure of hydraulic system
If the pressure of hydraulic system does not seem to be
correct or pressure check indicates that the pressure
is wrong, it can be adjusted. All adjustment screws are
protected with a 13 mm nuts and there is a seal ring
under each nut. When taking off the nuts make sure that
the seal rings doesn’t get lost. Adjust the pressure with
an allen key, max. 1/8 rounds at
a time. See pictures for pressure
adjustment points.
Auxiliary hydraulics: Pressure
is adjusted from the pressure
relief valve at the main control
valve. Pressure adjustment
screw is on the right, on top of
the valve segment (see picture).
Adjust by turning the screw with
a screwdriver. Pressure setting
should be 185 bar.
Drive pressure: Can not be adjusted. If the pressures
are clearly wrong one must change the pressure relief
cartridges which have 280 bar fixed pressure setting.
Never exceed the recommended hydraulic
pressure settings. Excessive hydraulic pressure
will damage or wear the hydraulic pumps,
cylinders, and hydraulic motors.
Warranty does not cover damages caused by
excessive hydraulic pressure.
Service and maintenance instructions
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