Revolving door TSA 325 NT
49
Options
5.5.5 Using a tooth-belt tensioner
The smaller the system, the greater the tooth belt tension will fluctuate as the leaf moves.
The tooth belt tensioner (mat. no. 140538) ensures that the tooth-belt tension is more even.
It can be used in both curved sliding doors and with night-time closers (inside and outside-running).
1
Tooth belt tensioner
2
Sliding block for mounting on the canopy panel
3
Sliding block for subsequent installation
4
Countersunk head screw
5
Rollers
6
Tension spring
7
Drill holes for different tensions
Mounting the tooth belt tensioner
The tooth belt tensioner (1) is mounted near the motor gear unit (9). It prevents the tooth belt from jumping.
The tooth belt (8) is guided
inside
the rollers (5).
1
6
7
5
9
8
Changing the tooth-belt tension
à
Suspend the tension springs (6) in different drill holes (7).
à
Change the distance between the tooth belt tensioner (1) and the motor gear unit (9).
Tooth-belt tensioner when using an inside-running night-time closer
To conserve space, when using an inside-running night-time closer, the exterior lever must remain locked with
countersunk head screw (4).
The sliding blocks (3) may be used for subsequent installation.
Tooth-belt tensioner when using an outside-running night-time closer
When using an outside-running night-time closer, the countersunk head screw (4) that locks the lever can be
removed. This allows both rollers to move dynamically and allows the tensioner to work more effectively in
both
directions (opening
and
closing the leaves).
Since the tooth-belt tensioner is attached here to the profile of the canopy panel, the appropriate sliding blocks
(2) must be used to make it possible to install the sliding blocks if necessary.
