I just received my Simrad TP20, to be installed on a Catalina 25.
Having been advised that my boat would require the 150 mm pushrod
extension, I ordered it, and it arrived separately. The pushrod looks
like it is threaded both ends, and is pretty obviously intended to go
between the primary pushrod and the black plastic fitting on the tip
of the pushrod. My problem is, I can't seem to unscrew the black
plastic fitting by hand. I don't want to use tools and risk damaging
it. Is this black plastic thingy supposed to be so hard to unscrew?
Is it okay to take a pliers or Vise Grip to it as long as I am
relatively gentle about it?