Alpego TT93, Руководство пользователя, Страница: 21 / 32

5 – DIRECTIONS FOR USE
5.3 REAR WHEELS (option)
The machine may be supplied (or equipped later) with a pair of rear wheels which are used to adjust the working
height. If these are mounted on the machine, it is necessary to remove the rear roller, since the wheels would not
fulfill their task if this were left on.
In order to adjust them it is necessary:
•
With the engine of the tractor off and the hand brake pulled to gradually lower the machine to the ground with the help of
the lifting device of the tractor
•
Adjust the working height by acting on the wheels: by unscrewing the retaining bolt B, lift the wheel to the desired
height, then insert again the bolt into the desired hole.
5.4 BLADES
The rotor blades are suited to work on soils having a normal conformation.
Check daily the amount of wear-and-tear or their integrity. Should any of them either break or become deformed
while working, they must be immediately replaced. When doing that, be careful to mount the new blades in the very
same position. It is always advisable to remove and replace one blade at the time so as to avoid position mistakes.
The normal wear-and-tear (particularly quick in sandy soils or when working with the machine too low on the ground)
and hitting against obstacles can cause cracks or deformations of the blades which in turn can cause:
•
An increase of vibrations entailing mechanical damages to the machine
•
A worsening of the work quality
•
The total or partial breaking of the blades with the ensuing projection of fragments at very high speed
The partial replacement of the blades must always be done in pairs, one blade and its opposite one.