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6.2 Mounting of SHZV on bell-type transformer
6.2.1 Disassembly of SHZV top cover and lifting of switch insert
a. Make sure OLTC is at the setting position
b. Unscrew the 24 pieces of M10 bolts on the OLTC head cover (with spring washer, 16mm box wrench)
c. Remove the OLTC head cover (See Figure-6-2)
During
disassembly and other work, avoid damaging the OLTC’s head cover and sealing face (O ring, see
Figure-6-2)
Figure 6-2
If heavy components are not placed on a flat surface, they may tilt and
cause injuries! Therefore, they must be put on a horizontally flat
the head
cover
Head cover
connecting bolts
Carefully keep the head cover O ring in a safe place.
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