[Johnson] Ranger VFO coupling

[Jim Brannigan]

Jerry,
You can reach the set screws for the VFO coupling from beneath the chassis.
The is a 3/8's or so hole that will allow a thin screwdriver access to the
set screws.

You can't remove the VFO shield until you take the coupling off.
Remove the side shield.
Remove the top shield
Remove all nuts from the spade lugs on the rest of the shield.
The bolts that hold the spade lugs to the shield are a very tight fit to the
phenolic boards in the VFO compartment.
You will be able to pull the shield about half-way up.  Gently, work the
shield around the boards to remove.


I just took my Ranger apart.  It should be a lot of fun putting it back
together.
Jim

> I'm pretty sure (sigh) I have a busted flex coupling on the VFO shaft of
one
> of my Ranger I's. Either that or something is slipping inside the VFO
> chassis. The VFO is stuck on one freq, even though the vernier drive
appears
> to be working fine. The coupling, of course, is inside the case, which
> appears to be non removable. Is there a sequence of Chinese jigsaw puzzle
> steps I should know to get at this thing? I've had front panels off
before,
> and have pulled the side cover on several to do the 18K resistor mod and
> replace some tubes, but never had to go any further inside the VFO, which
> does NOT appear to have a removable cover. I don't recall if the side
plate
> will give access to the coupling or not. What's the secret? Will pulling
the
> top plate with the springy thingies on it allow access to the coupling? I
> can do that if need be, have done it once or twice years ago and got away
> with it then.
> Jerry W5KP