![](/images/flag/s/pl.gif)
![](/images/flag/s/it.gif)
![](/images/flag/s/en.gif)
![](/images/flag/s/es.gif)
![](/images/flag/s/fr.gif)
![](/images/flag/s/de.gif)
![](/images/flag/s/nl.gif)
Then check that all screw connections have been tightened firmly. Attention: once locknuts have been unscrewed they no longer function correctly (the locking device is destroyed), and must be replaced. ¦ For technical reasons, we reserve the right to carry out preliminary assembly work (e.g. addition of tubing plugs). should be clearly stated on the order by adding the words „with fastening material“. Waste Disposal KETTLER products are recyclable. At the end of its useful life please dispose of