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SECTION 7 - MAINTENANCE
7 - MAINTENANCE
7.2.6 Adjustment of the Blade transmission belt
The knife V-belt can change its dimensions after a few hours, so it is recommended to
adjust the belt tension according to the maintenance schedule in chap. 7.2.1 to set.
To adjust the belt, remove the belt cover (Fig.7 (U)). Check the tension with a force of 5
kg on the belt. The bending depth of the belt should not be more than 5 mm.
If necessary, adjust the belt tension according to these instructions (Fig. 29).
- Loosen the nuts (A) on the engine slides
- Loosen the lock nuts (B)
- Adjust the tension with the screws (C)
- lock the position with the nuts (B)
- Fix the position of the engine slides (A)
If the belt needs to be replaced, the sheet metal cover under the cutting deck must be
removed (see Fig. 30).
A
5mm
B
F
C
Fig. 29
7.2.7 Blade sharpeing and replacing
The blade of this mulching machine is turning very fast so that a small damage in one
single blade can create an imbalance which turn in a strong noise and vibration. Anytime
there is a un-normal noise it is reccomend to verify the condition of the blades. (see par.
7.1.6).
To check and remove the blade, Park the machine in a flat ground; stop the engine and
remove the starting key. Lift by a crane the front of the machine in upright position. Se-
cure the machine by a prop. in order to accede and remove easely the blades. Avoid a
precarious and unsafe position. If the machine falls, it could crush you and cause you
serious injuries.
Unscrew the center bolt to remove the blade support. If possible use a pneumatic tool
or percussion screwdriver. Once you have removed the whole blade set, avoid to disas-
semble the blade from the blade support.
38
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