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6.2.3 Setting the belt tension
Proper setting
The belt must be tight enough not to deflect by more than approx. 1.5 mm
if pressure is exerted at the checking point.
Fig. 20: Setting the belt tension
(1) - Checking point
(2) - Hexagon slot
(3) - Belt tensioner
(4) - Drive pulley
To set the belt tension:
1. Insert the V-ribbed belt (7).
2. Turn the tensioning roller (6) with the belt tensioner (3) against the
3. Insert a hexagonal wrench into the hexagon slot (2).
4. Tension the V-ribbed belt (7).
5. Tighten the screws (5).
6. Check and, if necessary, correct the belt tension.
32
①
V-ribbed belt (7).
Setting the drive
②
③
④
(5) - Screws
(6) - Tensioning roller
(7) - V-ribbed belt
Service Instructions 969 - 06.0 - 03/2019
⑦
⑥
⑤
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