Frozen band switch on Mohican receiver

[Mike Bryce]

Gang!

The switch is frozen at the bearings. the wafers seem to be just fine.

I don't know if I will be able to release the shaft from the bearing  
or not.

I am going to try some BP blaster and the soldering iron and see if  
that works.


Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o
Note: No trees were killed in the sending of this message, but a large  
number of electrons were terribly inconvenienced


On Nov 3, 2008, at 11:35 PM, rgroh at swbell.net wrote:

Mike,

Assuming we are talking about a switch is frozen where the shaft  
passes through the front bushing: I had a switch on an S-40B that was  
similarly frozen. I removed the knob (a major task in itself!), set  
the radio on it's back and just kept the area between the shaft and  
bushing wet with penetrating oil (actually a very light oil I use on  
HO train engines). Checked it couple times a day for several days,  
kept the oil on it and tweaked back and forth with a vice grip on the  
shaft and finally it broke loose.

Now in reading your email, I almost get the feeling you are saying  
that the switch is frozen at the wafer's? I don't have a good idea of  
what the arrangement is like inside. So I'll wait for the 2nd  
installment!

73
Bob Groh, WA2CKY

From: Mike Bryce <prosolar at SSSNET.COM>
To: HEATH at LISTS.TEMPE.GOV
Sent: Monday, November 3, 2008 3:48:37 PM
Subject: [HEATH-TEMPE] Frozen band switch on Mohican receiver

Well gang, the subject line says it all

got escrewed with this "works just fine" mohican

band switch is frozen

I can get it to move with a vise grip, but afraid I'll break out the
wafer switches as the whole switch flexes when I attempt to turn it
with the vise grip.

I've put some teflon micro oil on the shaft where it goes into the
bearing and tried rocking the shaft back and forth.

right now.. unless I can free up the band shaft, this thing is a goner..

I did manage to get the band switch on the broadcast band and the
receiver does work after a fashion

any ideas to free up a frozen shaft like this??

Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o
Note: No trees were killed in the sending of this message, but a large
number of electrons were terribly inconvenienced



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for losses or misrepresentations of any kind.  Buyer beware!

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