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Possible cause:
The upper pendulum roller might be not leveled properly. When regrooving the upper disc for example 0.50 mm in diameter, the height of the pendulum rollerhead must be reduced 0.25 mm. This can be done by the M10 screw on the back side.

See also in the manual X1 how to reset the upper pendulum rollerhead.

NOTE: The description manual is based on a CM X1 welder, but it works very similar for our other welders.

ATTENTION: Do not touch the red marked screws!

1. Remove welding pressure and check if deviation of upper (outer) rollerhead (in most machines the pendulum rollerhead) is working properly (free of any mechanical friction or resistance)!
2. Follow 1. and check „copper belts“ (the flexible power conductors between the rollerhead and the upper bus bar) and that they are not give mechanical resistance (counterforce) to the welding pressure.
3. Following 1. and make sure that the „lift“ of the upper rollhead is not disabling the welding pressure to be fully obtained to the lower welding roll. This can happen if the both welding roller diam. are smaller than allowed.
4. Finally check, ideally with a „tension spring balance“, the actual welding force (usually it should be within 40–45 daN)

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