[Moon] freeing allen-head screws on M2 432-9WL

[Hakan Harrysson]

Hello Martin!

Before trying the saw i would advice to try with an electric hotair gun (not sure what the right word is for this tool?)  

When things are stuck there is nothing like heat,  it can change everything.

73  Hakan  SM7WSJ




> I just bought a second-hand M2 432-9WL yagi to upgrade my mobile 432
> system (yes-at 21 feet long it is a monster but it actually fits on top
> of the rover!)
> 
> An allen-head set screw on one of the driven element's shorting bars
> seems to be frozen in place, not allowing me to adjust the shorting bar
> to tune the antenna properly.  I tried spraying with WD-30, but nothing
> changed-the allen-head wrench became twisted out of shape as I tried
> harder and harder.
> 
> Is there a way to unfreeze the set-screw, or does one just have to saw
> off the shortling bar and start over again with a new piece?
> 
> Thanks for your suggestions.
> 
> 73,
> 
> Martin, KC3RE
> 
>