17
3.7.2 Side setting of the indented lower pulley
The pulley must be set up in such a way that the belt passes through the
centre of the passing hole in the bedplate. The setting operation is to be
done as follows:
Caution! Danger of injury!
Switch off the main switch! Before starting the setting
operation, wait until the motor stops!
- Loosen the screws (1) of the pulley (2).
- Loosen the screw (3) of the tensioning roller (4)
- Set the pulley (2) in such a way that the belt (5) passes through the
centre of the passing hole in the bedplate (6).
- Tighten the screws (1).
- Set the tensioning roller (4) axially in such a way that the belt (5) is
set at the middle of the tensioning roller (4).
- Set the tensioning roller (see par. 3.6.4).
- Tighten up the screw (3) of the tensioning roller (4).
3.7.3 Side setting of the indented upper pulley
The pulley is to be set in such a way that the indented belt is not crossed
and the pulleys are in line. The setting thereof is to be done as follows:
Caution! Danger of injury!
Switch off the main switch! Before starting the setting
operation, wait until the motor stops!
- Loosen the screws (1) of the pulley (2).
- Set the pulley (2) in such a way that the distance of 5 mm is attained
in accordance with the illustration.
- Tighten the screws (1).
3.7.4 Setting the tensioning roller
The tensioning roller of the indented belt of the top feeding is mounted
in a rotary way on the bedplate. The belt must be ten-sioned as needed
in such a way that there is ensured the correct function of the
transmission. Insufficient tension can cause skipping of the teeth, on
the contrary, excessive tensioning enormously loads the mounting of
the top shaft. The setting thereof is to be done as follows:
Caution! Danger of injury!
Switch off the main switch! Before starting the setting
operation, wait until the motor stops!
- Loosen the screw (1) securing the lever of the tensioning roller (2).
- Tension the belt as needed (theoretically, in applying the force of
10 N in the middle of the belt with the deflection of 4 mm).
- Tighten the screw (1).
4
3
5
1
2
6
2
1
1
2
5
