AL-KO AT4F Series, Operating And Assembly Instruction Manual

Page: 41 / 140

Subject to changes in line with technical progress!
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Assembly
5.3.3 Inside unit connections with split housing
1
3 4
4
5
2
3 4
4 5
Fig. 22 Unit connections with split housing
1 Unit connections, horizontal/vertical centre 4 Washer
2 Gusset plates 5 Hexagon nut
3 Hexagon head bolt
ATTENTION
The unit connections are used exclusively to fix the unit in its final position. They must not be
used to draw the individual components together.
In the case of units with several housings, the individual housings must be assembled on-site. To do this, proceed as
follows:
Step Action
1 Position the unit modules as close to each other as possible.
2 Align the unit modules in the final housing position.
3 Draw the aligned unit modules together using suitable equipment (e.g. belts).
NOTE: The unit connections are used exclusively to fix the final housing position!
4 After pulling the units together, connect them via the unit connections:
Insert the hexagon head bolt (3) with washer (4) into unit connections (1) or gusset plates (2) and fix using a washer
(4) and hexagon nut (5).
During assembly, ensure that the potential equalisation of all components is and remains ensured by the unit connec-
tion (gusset plates (2) on the operating side of the housing).
5 With unit versions conforming to VDI 6022, unit separation points are additionally equipped on the inside with microbi-
ally inert sealing material.
6 After installing the components, check that they are integrated into the unit potential and document this.
All metallic/conductive/discharging parts of the unit must be included in the local equipotential bonding measure.