AVANT 735 2020, Operator'S Manual

Page: 111 / 140

Avant 735 Service and maintenance
111
Check wheel nuts
Check tightening of the wheel nuts with a torque
wrench. Wheel nuts must be tightened to 225 - 275
Nm. The wheels and nuts settle in after first few
hours of use, check the tightness after 5 hours of
use.
Tighten wheel nuts after first 5
operating hours. Check tightness of
wheel nuts regularly.
Other bolts and nuts
Bolts and nuts on the loader are standard metric
system type. If replacement of bolt or nut is
necessary, replace both at the same time with ones
that are identical in size and grade.
Most bolts and nuts on the loader are metric grade
8.8. See the spare parts catalog for information
about bolts, nuts, and washers. Contact Avant
service if you are unsure of suitable fasteners.

Check the bolts connecting the rear frame
extension to the rear frame. These bolts must be
tightened to 277 Nm. These bolts must be grade
10.9.

Check the fastening of the drive motors. For
more information see page 125.
These bolts must be checked after the first 50 hours
of use, and then after every 400 hours or 1 year of
use, whichever comes first.
Check hydraulic fittings
Check hoses and fittings visible on the loader boom.
Push and pull the hoses manually and look if any
fitting is loose.
Do not overtighten hydraulic fittings. Tighten any
hydraulic fitting only if there are signs of leakage or
loose connection. Tightening of a hydraulic fitting
unnecessarily can damage it.
Make sure that replacement hoses and fittings are
compatible with the fittings on the loader. Contact
Avant service when hoses or fittings need to be
replaced.
Hydraulic fittings of drive motors and hoses of
drive system
Hydraulic fittings of the drive system are equipped
with a visible marker where a yellow marker is fully
visible, when the fitting is tightened correctly. If a
hose or fitting needs to be replaced, use only hoses
which are equipped with compatible fittings.
Reuse of hydraulic hoses or fittings
Never reuse pressed fittings that are part of hydraulic
hoses. If a hose must be replaced, it must always be
equipped with new fittings. Use only high quality
hoses and fittings. Hoses must be made with
professionally made pressed fittings. Do not use
reusable hose fittings.
Tapered JIC-type hydraulic fittings may get damaged
when removed and re-tightened. Note that JIC type
fittings are not tightened with torque and fitting will
break when tightened too much.
7. Check wheels
Check the condition of tyres and rims visually daily.
Do not use if there is visible damage on tires or rims.
If a tyre is punctured take the tyre to a professional
tyre shop. It may not be possible to repair all
punctures safely. Do not repair tyres yourself.
Check tyre pressure with a pressure gauge
whenever you suspect wrong pressure. Check the
tyre pressures at least monthly. Check tyre pressure
when heavy attachments and extra counterweights
are not attached.
Check that the tyre models are appropriate for the
loader model and listed on page 36. The load and
speed rating of the tyre and rim must be appropriate
for the loader model.
The correct tyre pressure depends on tyre model and
intended load. Refer to Chapter Technical
Specifications.
WARNING
Risk of loss of stability due to
tire failure - Never attempt to
repair a tyre by yourself. The
loader is equipped with heavy duty
tyres that must only be repaired by
a qualified tyre technician.