Maintenance of the Machine
74
04/03/2020 218333
Only for SB/TB/TBZ 23/25 Plus types
In these machine types, 2 ribbed V-belts are installed on 3 axles so that 2
ribbed V-belts must be tensioned if necessary. If the front ribbed V-belt is ten-
sioned, the rear ribbed V-belt must also be tightened.
4. On the underside of the central axle bearing, loosen the
two size 6 hexagon socket screws to remove the axle to-
gether with the transmission belt pulley.
This will relieve the tension of the ribbed V-belts.
Note
Please note that only original spare parts from the manufacturer May be used.
If you use other spare parts, the manufacturer gives no warranty and is not li-
able for functionality and safety of the machine.
5. If necessary:
Remove the damaged ribbed V-belt and replace it by a new one.
When installing the new ribbed V-belt, make sure it is seated correctly and
in alignment on both pulleys.
6. Clamp the ribbed V-belt in by
slightly pushing the middle axle bearing backwards
with one hand,
checking the tension of the ribbed V-belt with the other
hand.
The tension is correct if the ribbed V-belt between the
pulleys can be pressed in 3-5 mm.
7. Tighten the two hexagon socket screws on the underside
of the middle axle bearing.
8. Then check that the ribbed V-belt is seated correctly and
runs smoothly when turning the front pulley by hand.
9. Then also clamp the rear ribbed V-belt (see section 9.4
For all SB/TB/TBZ 23 Plus types, page 72).
The ribbed V-belts are now replaced (if necessary) and correctly tensioned.
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