Fuses
￭ Replacing the AC fuses
WARNING!
Wear protective gloves and long sleeves. Some parts have sharp edges.
1.
Stop the drive and do the steps in section Electrical safety precautions (page 16) before
you start the work.
2. Open the door of the supply module cubicle.
3. Remove the shroud at the lower part of the cubicle.
4. Slacken the nuts of the fuses until you can slide the fuse blocks out. Make note of the
order of the washers.
5. Move the screws, nuts and washers from the old fuse blocks to the new fuse blocks.
Make sure to keep the washers in the original order.
6. Slide the new fuse blocks into place. Tighten the nuts to 50 N·m (37 lbf·ft) (Bussmann
fuses) or 46 N·m (34 lbf·ft) (Ferraz Shawmut fuses).
7. Re-install the shrouding removed earlier and close the door.
Maintenance 129
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