Angle grinder or oxy torch.
On 8/12/2017 7:27 PM, Victor Rosenthal 4X6GP wrote:
I have an older Palstar AT-Auto tuner. It uses stepper motors to turn
a rotary inductor and a capacitor. It works very well in my station
(or it did).
The motors are connected to the coil and capacitor with semi-flexible
insulated couplings that are made out of some kind of plastic strip.
The plastic on the one for the capacitor has disintegrated. I have a
good quality metal and ceramic coupling to replace it with, but I
can't budge the setscrews holding the old one. Allen wrenches twist to
no effect.
The screws are held with some kind of glop. I don't think it is
Loctite but I don't know for sure. I put some penetrating oil on them
and am waiting to see if that works.
I suppose I could drill them out if needed, but that is a last resort
because I am afraid of damaging the motor or the capacitor. Any
suggestions?
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