It's impossible for the backoff screw to have no effect if you have the spring tension set correctly - or at least I've never encountered a situation where that's the case
if you loosen the backoff?screw completely?
This is the procedure to check/adjust the spring loaded worm:
?
If you continue to have questions about this, please use the open support case you have with us. I will probably ask you for a video demonstrating what you see
Thank you for your answer. I have tried to adjust the DEC SLW starting with resetting the spring length to about 8.4mm . What I have found is that the secondary, i.e. back-off screw, does not seem to have any effect, that is, regardless of its position the resistance offered by the spur gears is minimal. If you want the gears offering resistance you have to screw on the main spring screw and in any case the back-off screw does not seem to have any effect. I have screwed and unscrewed the back-off screw and its regulation effect is zero. Is anything wrong with my DEC SLW ???? ?