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69
English
11.5.4. Checking the tension of the drive belt
The Prof 6 is equipped with a drive belt. This is hidden behind a belt guard as an extra safety
precaution. In order to check the tension of the belt, proceed as follows:
Belt: engine - blade shaft
• Remove the belt guard. See “11.3.1.
Removing the belt cover”, page
52.
• Place a 7-kg weight on the belt
midway between the two belt
pulleys.
• If this produces a 1-cm deflection,
then the belt tension is correct.
11.5.5. Checking the alignment of the pulleys / Replacing the belt
Belt: engine - blade shaft
• Loosen the guide bolts
(3 & 4)
and unscrew
them 2 cm - 1”.
• Position metal plates between the base of
the engine and the bolts
(3 & 4)
, and
retighten the bolt
(4)
.
• Slightly loosen the 4 bolts on the engine
(5, 6, 7, 8)
(M10, 17-mm wrench).
• Move the engine by moving the clamping
bolt
(4)
to tighten the belt.
• Ensure correct belt tension. See “11.5.4.
Checking the tension of the drive belt”,
page 69.
• Repeat the above operation as described
until the correct tension is obtained.
7 kg
3
4
6
5
7
8
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