Maintenance
130
10. Unplug the fiber optic cable from the module.
11. Unplug the terminal block from the module.
12. Remove the module mounting screws (four at top, two at bottom).
13. Disconnect the DC output busbars from the module. Beware not to drop the
screws inside the module!
14. Assemble the module installation stand. See Installing the installation stand on
page 133. Pay attention to the width: Select the right braces to match the width
of the stand to the width of the cubicle.
15. Fasten the module installation stand to the frame of the cubicle (2 × 5 screws).
Align the stand and the rails on which the module lies on in the cubicle. Adjust
the height of the feet. Note: Remove the cabinet hinge first if necessary.
WARNING! The feet must lean on a solid floor. The cubicle may topple over when
the heavy module is pulled out if the stand is not supported properly.
16. Fasten the lifting bar of the winch to the two module lifting holes.
WARNING! Before fastening the lifting bar, always ensure that the lifting cable is
tightly wound on the drum of the winch. A slack cable may slip, making the lifting of a
heavy module unstable. A swinging or falling module may cause damage, injury or
even death. See section Use of the hand-operated winch (page 18) for more detailed
information on safe use of the winch.
17. Pull the module out of cubicle onto the installation stand. Keep the pipes and
wires away from the sharp edges.
18. Winch the module up.
19. Remove the module installation stand.
20. Winch the module down and lay it on a pallet.
WARNING! The module is heavy and its centre of gravity is high. The module
topples over easily. Never manoeuvre it in upright position untied. It is highly
recommended to lay the module on its side before moving the pallet.
21. Move the pallet with the module aside.
22. Before installing a new module, check and service the quick connector through
which the AC output busbars or the cubicle connect to the module:
• Check the tightness of the motor cable connections at the quick connector:
70 N·m (52 lbf·ft).
• Clean all contact surfaces of the quick connector and apply a layer of suitable
joint compound eg, Isoflex® Topas NB 52 from Klüber Lubrication, onto them.
23. Install new module in reverse order.
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