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| Loosen cap nut and remove wiring lug from screw connection. |
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| Check screw connection for corrosion, dirt, etc. |
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| Select appropriate adapter and corresponding sanding pad for screw connection. |
Caution | Increased corrosion due to exposed copper layer. |
| Do not sand away the tin plating to such an extent that the copper layer underneath becomes visible. Galvanic effects can cause increased corrosion. |
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Note | As the thickness of the tin coating varies, it is necessary to clean the screw connection in several stages and check it in between. |
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| Apply adapter to screw connection and sand corrosion and dirt off by rotating adapter. |
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| Check screw connection and if necessary re-sand. |
| –
| Bolt screw connection together with locating element (if fitted) and tighten to specified torque. |
Note | To ensure optimum contact, tighten all screw-type connections to specified torque after cleaning. |
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| Protect connection from corrosion by applying corresponding anti-corrosion agent → Chapter. |
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WARNING
