Warning: Creating default object from empty value in /homepages/11/d132647312/htdocs/Amfone/mkportal/include/SMF/smf_out.php on line 47
Freeing stuck switches




 
The AM Forum
December 01, 2022, 07:31:26 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Freeing stuck switches  (Read 349 times)
0 Members and 1 Guest are viewing this topic.
KB5MD
Contributing
Member
*
Offline Offline

Posts: 598


« on: September 18, 2022, 01:54:19 PM »

Does anyone have a method of freeing up frozen wafer switches.  I am trying to restore a Johnson Ranger II and a couple of the wafer switches are frozen.
Logged
W1ITT
Member

Offline Offline

Posts: 528


« Reply #1 on: September 18, 2022, 07:00:56 PM »

I suspect, from past experience, that the problem is primarily in the bushings and bearings.  My latest penetrant du jour Is DeepCreep, made by the SeaFoam people, available at auto parts stores.  I'd spray some into a soda bottle cap, then wick it into the bearings with a Q-tip and/or a toothpick.  Just don't get any of that stuff on any phenolic parts.  It might be worth just trying to move the contacts up from the wiper with a knife blade, just so you are confident that nothing is corroded on.
My local mechanic told me about a "new and improved" penetrant by the name of SuperZilla.  I haven't tried it yet, but I might.  But DeepCreep has solved most of my problems.  Easy does it.
73 de Norm W1ITT
Logged
W7TFO
WTF-OVER in 7 land Dennis
Contributing
Member
*
Offline Offline

Posts: 2438


IN A TRIODE NO ONE CAN HEAR YOUR SCREEN


WWW
« Reply #2 on: September 18, 2022, 07:31:54 PM »

I've tried "SuperZilla", and it does everything it says it will.

It goes where nothing else does and gets things to move easily.

Oddly enough, it will free a stuck injector in Diesel engines. 

Put some in the tank, start it up, and let it run a while.

Weird, but effective.

73DG
Logged

Just pacing the Farady cage...
MikeKE0ZUinkcmo
Member

Offline Offline

Posts: 427



« Reply #3 on: September 22, 2022, 09:31:32 PM »

I use Acetone, applying a couple drops at the opening of the retaining clip on the shaft.   It often frees the shaft within a few seconds, as it is a very thin solvent.   Once operating freely, I apply a drop of Remington's Rem Oil.

Logged

Mike KE0ZU

Bold Text and PICS are usually links

https://mikeharrison.smugmug.com/
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.032 seconds with 18 queries.