The patch fittings are pre-assembled.Lower patch fitting PT 10 and upper patch fitting PT 20 Unscrew base plates (9) and (12). Pull backing tape offdouble-sided adhesive tape (10) on both base plates and press intermediate layers (13) into place. Insert hose section (14) through hole in glass together with base plates. Align base plates so that they are 1 mm from both edges of the glass. Fix with countersunk screws (7) (with 5 mm Allan key). Tightening torque = 15 Nm. (Cover caps are flush with glass edges).
The insert (6) in the PT 10 can be used for both the flat-tapered axis (1) of a BTS (ground-level door lock) and for the flat-tapered or round axis (2) of a bottom bearing. The insert in the PT 20 matches the pin of a PT 21 as well as the fixed hinge pin with screw-down tab. The inserts must be aligned in accordance with the required pivot.
65 mm pivot = Long screw-down tab points towards the
glass edge
55 mm pivot = Short screw-down tab points towards the
glass edge
Secure inserts to base plates with countersunk screws (4). Tightening torque 15 Nm. Screws should always be fitted from inside the room to ensure safety against breaking and entering
Fitting the glass door
1. When using a PT 21 with movable upper pin:
Turn hinge pin up. Fit door on BTS spindle (or bottom bearing spindle) and align under pin. Turn hinge pin down and insert in corner hinge PT 20. To overcome the rim in the PT 20 bushing, the pivot bolt
has to be pressed in slightly with small force. This creates protection for the top fitting when glass breaks. If a PT 21 is used with a cylindrical bolt the rim in the bushing should be removed.
2. When using a PT 24, fixed pin with screw-down tab as upper hinge:
Secure PT 24 to ceiling. Unscrew and remove insert from corner hinge PT 20 . Fit door on BTS shaft (or bottom bearing shaft) and fit insert with bushing on fixed patch fitting pin of PT 24. To overcome the rim in the PT 20 bushing, the insert should be pressed slightly with small force. This creates protection
if glass should break. Align door and re-secure insert in patch fitting.
Securing the cover caps
Hook the unpierced side (5) of the cover caps (3) into the spring pins (11), press spring pins down and engage other side in pins (8).