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Operating Instructions, Comfort 850, 851 GB (#114940) 13
6.2 Mounting the toothed rack
Attention!
To install the rack correctly, the
following must be ensured:
- The motor unit has been mounted.
- The motor unit is unlocked (released).
6
.2.1 General
Reference:
- For gates with an existing toothed
rack, please skip to Section 6.3.
- Section 6.6 describes how to release
the motor unit.
i
The toothed racks are available in two standard
lengths: 2,000 mm und 4,000 mm.
The toothed racks can be cut to length or slotted
together according to requirements.
Special 432, Special 441
The toothed rack comprises a rack housing, toothed
rack segments and two clamping assemblies.
Special 471
The toothed rack is made up of several toothed rack
segments.
Minimum length of toothed rack
The minimum length of the toothed rack is equal to
the movement stroke of the gate between the gate
OPEN and gate CLOSED positions + 180 mm.
Maximum length of toothed rack
The maximum length of the toothed rack is equal to
the width of the gate.
6. Installation
Push in the wall plugs.
Feed the control cable (J) and the power supply
cable (K) through the floor console.
Align the motor unit.
Screw the floor console into place.
J
K
6.1 / 3
ø 10
40
50
Caution!
Danger of electric shock:
Before commencing cabling works it is
very important to disconnect the
operator system from the electricity
supply. Ensure that the electricity supply
remains disconnected for the duration
of the cabling works (e.g. prevent
reconnection).
13


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