Maintenance of the Machine
218333 04/03/2020
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9.3 Installing/Removing the Protective Hood
In order to carry out the various maintenance and repair work on the electrical
system and the drive unit, the protective hood of the machine must be disman-
tled.
Danger
Danger by electric voltage.
Maintenance work on electrical components may only be carried out by au-
thorized personnel (electricians). Make sure that the electrical equipment of
the machine is de-energized for the period of maintenance.
Wait at least 15 minutes before removing the protective hood of the machine.
The DC bus capacitors must first discharge themselves independently during
this period.
9.3.1 Removing the Protective Hood
1. Wait at least 15 minutes before removing the protective hood. Only then will
the capacitors be discharged under the protective hood.
2. Remove the large black protective plug on the left side of the protective
hood. Under it there is the spiral spring of the three-arm-lever.
3. Loosen the spiral spring of the three-arm-lever by
fixing the clamping flange with the WAF19 hexagon
wrench
and useing the size 6 hexagon wrench to loosen the
spiral spring.
4. Remove the spiral spring from the protective hood and
deposit it.
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