GEZE Powerdrive Installation Guide: Drive & Tooth Belt

5.5.1 Fitting the tooth belt

1. Cut the tooth belt to length.
2. Place the toothed belt on the motor pulley and deflection pulley.

If there is a toothed belt locking present:

1. Thread the tooth belt into the toothed belt locking.

5.5.2 Fitting the tooth belt to the driver

1. Place the toothed belt locking (1) on the ends of the tooth belt (3) (3 teeth per belt end).

1-leaf

1. Screw the toothed belt locking (1) to the driver (2) using the screws (4) (torque 6 Nm).

2-leaf

1. Mount both ends of the tooth belt (3) using the toothed belt locking (1) on the driver (2) using screws (4) (torque 6 Nm).

5.5.3 Tensioning the tooth belt

1. Undo 2 screws (2).
2. Slide the motor gear unit (3) to the right by hand.
3. Undo the screw (1) and move the sliding block in such a way that a slot-head screwdriver can be pushed between the sliding block and the motor gear unit.
4. Tighten the screw (1) (torque 10 Nm).
5. Push the slot-head screwdriver into the gap and lever it until the tooth belt is pre-tensioned.
6. Tighten 2 screws (2) (torque 15 Nm).

5.5.4 Setting the closing position

For 2-leaf door systems:

1. Slide the moving leaf to the closed position.
2. Mount the second belt lock with screws (3) on the driver (torque 6 Nm).
3. Use the oblong holes (2) to finely adjust the position in the direction of displacement.
4. Tighten the screws (1) on both belt locks when the exact closing position has been set (torque 6 Nm).

5.5.5 Setting the stop buffer

1. Undo the setscrews (2) on the stop buffer (1).
2. Slide the moving leaf to the open position.
3. Slide the stop buffer on the roller carriages.
4. Tighten the setscrews (2) using the Allen key (torque 3 Nm).

5.5.6 Positioning the tooth belt locking mechanism (optional)

1. Close the moving leaves.
2. Loosen the screws (1) at the tooth belt locking mechanism (optional).
3. Align the locking device.

4. If necessary enlarge the drill hole.
5. Tighten screws (1).
6. Adjust the locking guide (3) so that the tooth belt neither touches nor has too much clearance. To do so, loosen 2 screws (4), move the locking guide (3) and re-tighten the flathead screws (4) (torque 5 Nm).

7. After the tooth belt has been installed, check (click) the switching points of the indicator switches of the tooth belt locking mechanism (optional). Adjust by bending the actuator levers, if necessary.