ABB VersaRupter Installation, Operation And Maintanance Manual - page 57
Manual is about: MV Indoor Switch 4.76-38 kV, 200-1200 A, 40 & 61 kA
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VersaRupter MV Indoor Switch | Installation and Operation Manual
57
Replacement of Parts 38 kV
Changing the piston
Ensure the VersaRupter is closed and remove the operating
mechanism from the VersaRupter.
1. Disconnect the lower part of the draw bar from the
jackshaft by removing the cir-clip in figure 130.
2. Disconnect the piston rod from the jackshaft by re-
moving the cir-clip, figure 131, and the piston can be
removed.
3. Insert the new piston into the insulator and connect it
to the draw bar with a cir-clip.
4. Do not grease or lubricate the new piston or cylinder!
5. Connect the lower part of the draw bar back onto the
jack shaft with a cir-clip.
Figure 130
Figure 131