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10 Preparing the Welding Gun
Carefully retighten the chuck on the four ns with pliers
at regular intervals.
This ensures good current conduction. This prevents pre-
mature wear due to spark erosion.
10.2 Mounting the Chuck
Loosen the retaining nut on the piston of the welding
gun.
Stick the chuck into the piston up to the stop block.
Tighten the retaining nut again with the 17 mm socket
wrench.
When doing so, make sure the bellows are correctly
positioned.
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