[Heathkit] Heathkit Digest, Vol 117, Issue 8 Stuck coil slug

[G3OOU at aol.com]

Hi Sandy
 
There have been some previous references to heating the core to see if that 
 would loosen it. I have used a metal Allen key to move some difficult 
cores but  it is very important that the Allen key is a snug fit inside the core 
and not  sloppy otherwise it will break the core.
 
I use a smear of silicon tap grease to hold cores in place once  the thread 
in the former has been cleaned out. Also worth checking that  your plastic 
trimming tool has not shrunk over the years as that will also cause  core 
breakage.
 
All of the screening can cores that I have seen in the Heathkit SB-Line  
units have been dust iron and those are soft enough to pick out with a sharp  
scriber and a lot of patience - does not work with ferrite cores though.
 
73

Bob

Bob F Burns G3OOU
C  Eng, FIET, MSE
G-QRP 6907
Secretary of Crystal Palace Radio &  Electronics Club: www.g3oou.co.uk
Technical web site:  www.qsl.net/g3oou
@BobFBurns on Twitter: http://twitter.com/BobFBurns  

 
In a message dated 08/10/2013 16:01:14 GMT Standard Time,  
heathkit-request at mailman.qth.net writes:


Message: 2
Date: Tue, 8 Oct 2013 10:28:26 -0400
From:  "Alexander N. Gerli" <ac1wye at gmail.com>
To: "heath at puck.nether.net"  <heath at puck.nether.net>,
heathkit at mailman.qth.net
Subject: [Heathkit] Stuck coil  slug....
Message-ID:
<CACs0R22rSSoHJ0Z_ibFnpFuqTQJWtvbvHMJeP5pq-XPwU1q+hg at mail.gmail.com>
Content-Type:  text/plain; charset=ISO-8859-1

Hi, gang,

Working on a radio and  I have a coil can with a stuck slug. Won't move even
with some effort from  my trusty alignment hex tool.

So I need some advice on how to loosen  that critter. I can't be absolutely
sure, but I am certain that the slug is  not cracked. I thought what I might
use. I have a nice Wagner heat gun with  two settings. If I applied some
heat to the slug can, would that possibly  help get things moving again?

I'd like some advice before I try this  (or another recommendation?)
approach.

73, Sandy  AC1Y


Alexander N. Gerli, Sr.
548 Allred Mill Road
Mount Airy,  NC  27030-2202