Installing The Drive Unit; Assembling The Rack - GILGEN AS-844 R Instructions De Montage Et D'exploitation

3.2

Installing the drive unit

- Prepare the foundation for the drive unit according to Fig. 1.
Attention:
The installation tubing for the connecting cables
must emerge from the floor in the right place (and
jut out approx. 35 mm over floor level).
Door opening to the left: see Fig. 2
Door opening to the right: see Fig. 3
To avoid electrical noises and interferences, it is
recommended to keep separate pipes for the power
cables and the control and safety wiring (buttons,
receivers, photocells).
- Carry out the foundation.
- Prepare the cables for the connection with the accessories and
power supply. To make the electrical wiring on the electronic
system easier, leave about 400 mm of free cable out of the hole
in the foundation.
- Detach the foundation plate from the drive unit and fasten the
plate onto the foundation, using three screws and dowels.
- Open the cover of the operator.
- Place the drive unit on the base plate, as shown in drawing B1-
0731-105. During this operation, pass the electrical wiring
cables through the conduit in the lower part of the drive unit.
To access the electric control, pass the cables through the
relevant bores up to the electronic control, using the cable
clamp supplied. To do this, remove the cable sheathings, so that
the cable clamp is only applied to the individual wires (Fig. 11).
- Adjust the drive unit on the height of the pinion 112 mm and
fasten it provisionally.
- Connect up the cables to the external UDC control according
to the UDC operating instructions 0460-763.
Warning:
Connect up the earth cable of the system to the
position shown in Fig. 18/item 8
3.3

Assembling the rack

The decision as to how the toothed rack will be mounted onto the
gate will be taken after contract award. The following three
installation possibilities are available:
3.3.1
Toothed steel rack directly welded onto the gate, by means of
welding bolts (Fig. 11/12/13, drawing B1-0731-105, welded
version).
3.3.2
Toothed steel rack directly screwed onto the gate, upon drilling
holes (drawing B2-0731-105, screwed version).
3.3.3 (this version is to be preferred)
Toothed steel rack screwed on Gilgen aluminium profile, upon
drilling threaded holes (drawing B1-0731-110 and examples
B2-0731-113/114/116).
4680-999-04_2004.09.p65
E
3.3.1 Toothed steel rack directly welded onto the gate
- Sub-assemble the welding bolt with the elements of the toothed
rack, using the rack fixing screws (Fig. 7).
Note:
Tighten the rack fixing screws in the top of the slot.
This allows the rack to be raised if, with time, the
gate tends to sink.
- Release the drive unit (see chapter 5).
- Slide the gate leaf open by hand.
- Lean the first tooth of the rack on the pinion in line with the first
spacer (Fig. 8).
- Fix the rack tooth to the leaf with a clamp (Fig. 8).
- Close leaf unitl it is in line with the third spacer on the rack, and
spot weld the spacer in position (in one point).
- Completely weld the three spacers to the gate.
To fix the additional rack sections, which are necessary to reach
the closed position, proceed as follows:
- Line up another rack section to the last one fixed to the gate.
To check that the teeth are correctly spaced, use a section of
rack about 150 mm long as shown in Fig. 10.
- Slide the gate closed until the pinion is in line with the third spacer
of the section being fixed (Fig. 10).
Attention:
Check that all the rack's sections work on the
centre of the pinion's teeth. If not adjust the position
of the drive unit.
- Weld the three spacers (Fig. 10).
Attention:
Do not, for any reason, weld the rack sections to
either the spacers or each other.
- By means of the four M10 set screws (pos. 6 on drawing
B1-0731-105), lower the drive unit by 1,5 mm (approx. 1 turn),
in order to allow for the gearing play between the pinion and
the toothed rack (Fig. 9). Then screw down the drive unit using
the four hexagon nuts.
- Check by hand that the gate is free to open completely and that
the leaf movement is smooth and with no stiff points.
Attention:
There must be a play of 1,5 mm in the engagement
between the pinion and rack (Fig. 9). If the gate is
new then check the engagement after a few
months. Never use grease or other lubricants on
the pinion and rack.
4680-999/04
AS-844 R
14-29