37
8.4 CHANGING HYDRAULIC OIL
We suggest changing all the hydraulic oil contained in the hydraulic system of the machine
every 1000
working hours
(as shown in the maintenance chart).
Act as follows:
~
Place the machine on a
fl
at surface and turn the tractor off.
~
The drain plug is placed on the left side of the oil tank.
~
Prepare an adequate tray under the drain plug.
~
Unscrew the drain plug (
Fig. 20, pos. 1
) and the oil-
fi
lling cap (
Fig. 19
).
When the tank is completely empty, start the tractor and operate the PTO for some
seconds to drain the oil contained in the pipes, then turn the tractor off, wait until
the tank is completely empty and screw the drain plug again.
~
During the oil drainage, replace the hydraulic oil
fi
lters.
~
Start
fi
lling the tank and, if possible,
fi
lter the new oil so that no foreign matters can
enter the hydraulic circuit.
~
During the tank
fi
lling constantly check the oil level; as soon as you can see the oil
level, go on
fi
lling but with small oil quantities, to allow the air contained in the tank
to blow off.
~
Screw the cap again, start the tractor and operate the PTO for some minutes and check
that the oil level remains constant; if necessary, top it up again.
Oil changing and draining and its disposal shall take place in compliance with the law in force, as hy-
draulic oil is a special waste material.
Apply to authorized companies to dispose of special waste materials.
Pay attention during oil handling: excessive or long-lasting contacts may cause infl ammations. In
case of contact, was with plenty of water, soap, and proper detergents.
Fig. 20
1
