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23. If necessary, fit an earth bonding clamp to the supply pipe and ensure that the
bonding complies with the relevant regulations in force at the time of installation.
24. Replace the service tunnel.
25. Replace the cover. If the cover does not fit easily, rotate the knobs slightly so
that they fit onto the spindles. Do not force the cover.
26. Tighten the three cover screws.
Spindle
Service Tunnel
Screws
Cover
20
Screw
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