[R-390] R-390 end-point adjustment

Tue, 15 Jan 2002 05:01:38 -0800 (PST)

Bill,

If I have the picture right you are messing with the oven adjustment.

To adjust the endpoint, one does not remove the cover.

The endpoint adjustment is under a screw cap on the upper right hand side of
the front of the PTO as you look at the drive shaft.

Is this what you are looking at?

73 Tom N5OFF

--- Bill Smith <[email protected]> wrote:
> Hi, have a R-390 non-a with a Collins 70H-2 PTO, with mod.
> 
> This one is out a bit, and I have attempted to adjust the end point.  I have
> removed the cover from S701.  Inside is a hollow, threaded cylinder.   The
> cylinder seems to be threaded inside and out.  Slots are cut in the end of
> the cylinder presumably for screwdriver adjustment.
> 
> I have attempted to rotate this adjustment, but it appears to be locked in
> position.  I used a small mirror to see if there was any other adjustment
> inside the cylinder or a locking nut.  None found.
> 
> The low point of the PTO (at 000) can be set to 3.455 KHz.  The upper end
> then measures 2.467 KHz.
> 
> Any ideas?  I'd hate to force the adjustment any further without knowing I
> won't break anything!
> 
> 73 de Bill, AB6MT
> [email protected]
> 
> 
> 
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