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4.8.6.c
CLEANING THE OUTSIDE OF THE
RADIATORS
If compressed air, steam or water are directed against a
q
person, they may cause injuries.
Always wear an eye shield and safety shoes.
The radiators can be cleaned after opening the rear panel (see
"3.5.2 REAR PANEL"), using a compressed air jet and, if ne-
cessary, carrying out a washing cycle with low pressure water
or steam; the specific detergents available on the market can
be used, provided that the instructions given on the package
are followed and that at the end of the operations the washed
parts are carefully dried.
IMPORTANT
Do not use products containing oily substances, even if
q
in slight quantities, since these facilitate the adhesion of
dust, which affects the heat exchange adversely.
Clean the outside of the radiators whenever the radiator
q
and the heat exchanger are dirtied, even if accidentally,
with oil, diesel oil, greasy or oily substances.
If the machine is used in dusty places, clean the radiator
q
and the heat exchanger more frequently, in order to
avoid the clogging of the fins.
4.8.6.d
CHECKING THE WHEEL NUT DRIVING
TORQUE
On new machines, check the wheel nut driving torque
q
after the first 50 hours of operation and successively
every 250 hours.
This check serves to restore the correct driving torque of the
wheels on the hubs.
The torque must be checked with a dynamometric spanner (1)
calibrated with the values indicated in paragraph "4.4.2 SPE-
CIFIC DRIVING TORQUES".
Use a 24 mm spanner.
IMPORTANT
Do not increase the specified driving torque and keep it
q
within the prescribed values.
When checking the driving torque, do not lubricate the
q
thread.
WARNING
CAUTION
MAINTENANCE PROCEDURE
RWAA13450
1
RWAA10250
187
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