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Operating instructions, Comfort 880, 881 (#103608 – GB) 11
4.4 Adjusting the height of the motor unit
4.4 / 1
16-30
The height of the motor unit can be adjusted using the heavy-duty wall
plugs.
4.5 Mounting the reference point magnet
WARNING!
Danger of injury due to uncontrolled movement of the
gate!
To avoid injury, the gate must have a mechanical end stop in both
directions; otherwise it could spring out of line.
The operator system determines the extent of travel and the gate
positions electronically. To do so, it requires a reference point on the
gate or the toothed rack. A special reference point magnet is used as
the reference point.
NOTICE
Malfunctions due to incorrect installation of the reference
point magnet!
Measuring the gate operator reference point can be interfered
with or prevented by the presence of old magnets and incorrect
installation clearances. To prevent faults:
Removeanyexistingmagnets(e.g.inthecaseofretrot
measures with an existing toothed rack).
Ensure that there is a distance between the reference point
magnet (A) and the motor unit (B) of 2-6 mm.
The distance between the centre of the magnet (A) and the
centre of the spur gear (C) must be 70 mm.
4.5 / 1
7063
2 – 6
A
B
C
4.3 / 11
Close the gate 500 mm further at a time.
Screw the toothed rack to each closed gate section in turn, as
shown on the relevant drill pattern.
NOTICE
Malfunctions due to incorrect installation of the toothed
rack!
If the adjustment between the toothed rack and the spur gear is too
tight, the operator system could jam and become damaged during
gate movement.
Ensure that a clearance of 1 to -2 mm is maintained between the
toothed rack and the spur gear.
4.3 / 12
1 – 2
Lower the motor unit by 1 to 2 mm.
“4.4 Adjusting the height of the motor unit“
CHECK
A functional check must be carried out to ensure that the toothed
rack is engaged with the spur gear along its entire length:
Ensure that the gate operator is unlocked (released).
“5.2 Emergency operation“
Move the gate slowly by hand into the OPEN and CLOSED end
positions.
The spur gear must be propelled by the movement of the gate.
11


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