Heiniger cattle clippers

[Nae bother]

I've a Heiniger cattle/shearing clipper and the nut that you tighten for the blade and comb keeps slackening,any quick fix or do I need a new nut?anybody else had this?really annoying when clipping cattles backs keeps slackening .

 

[M-J-G]

Piece of tape on the thread

 

[Blue.]

Bought a new tension screw and distance screw off horner shearing for mine £10 ish.