E-19
7.6 Change of grease in mower elements
Replace the grease in the mower elements every 500 working hours
or every 1,000 hectares.
Follow the directions listed hereafter.
- Remove the mower disc.
If several bearing housings need to be dismounted, care should
be taken that they are fitted back on the original mower
elements.
- Dismount the bearing housing A (fig. 28) from the element. Make
sure that the shims B remain in place.
- Remove the grease from the element. Do not use a solvent since
it may affect the sealing of the bearings and/or rinse the grease fill
out of the bearings.
Measure the grease quantity carefully. An incorrect quantity
may cause overheating and damage of the element.
- Fill the elements with 95 grams of grease (Shell Alvania WR 0).
- Place the bearing housing on the element. Turn the hub (C,
fig. 28) so that it is aligned with the hub of the adjacent mower
element (fig. 29).
- Apply Loctite 243 to the thread of the fillister head screws and
tighten them with a torque of 39 Nm (3,9 kgm).
- Check at the catellated nut the presence of the O-ring D (fig.29)
in the pressure piece.
- Fit the mower disc. Tighten the castellated nut with a torque of
150-250 Nm (15-25 kgm) and secure it with a split pin. Make sure
that the split pin does not protrude above the pressure piece.
Tip: it is not allowed to turn the nut back; keep turning until the
split pin can be fitted.
28
A
C
B
39 Nm
(3,9 kgm)
29
150-250 Nm (15-25 kgm)
D
!
!
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