[Heathkit] Frozen bandswitch

[john]

Consider also that the switch is one of the more irreplaceable pieces and 
the radio and it's good to treat it as such.

It's likely frozen at the front panel collar .... soaking it with 
kroil/PBlaster, keeping it soaked and waiting a day or two are all good 
suggestions. I'd NOT be wrenching it with heavy tools.

One other suggestion...put a soldering iron on the shaft ...say near where 
the knob was, and let heat soak into that front panel shaft bushing 
...especially with some solvent (Kroil/blaster, etc). Give it more time and 
less muscle and you're more likely to end up with a working undamaged rig.

73
John K5MO


At 04:14 PM 10/2/2015, Bwana Bob wrote:
>Consider WD-40, PB Blaster, or Ballistol.  I'm particularly fond of 
>Ballistol:  http://www.ballistol.com/uses/electrical-equipment/  It 
>doesn't seem to have the solvents present in WD-40.
>
>                 73,
>
>                 Bob WB2VUF
>
>On 10/2/2015 2:18 AM, rbethman wrote:
>>Jim,
>>
>>The list of possible solutions will most likely pile up like mulch after 
>>the city hauls off the leaves.
>>
>>The best thing that I have ever seen or heard of is Kroil.  It is indeed 
>>a penetrating chemical compound.
>>
>>Since it is trying to turn the "bearings", it is froze with corrosion.
>>
>>It used to be "3 in 1 Penetrating oil".  Kroil surpasses what the old 3 
>>in 1 ever did!
>>
>>Regards, Bob - N0DGN
>>
>>
>>On 10/2/2015 1:41 AM, Jim Pruitt wrote:
>>>I recently bought a Mohican.  The seller said it had a frozen 
>>>bandswitch.  I took the shaft coupler off and tried to turn it with 
>>>pliers.  It trys to turn the front section (the entire section) and not 
>>>just the shaft.  I loosened the nut holding the bushing but that did not 
>>>help.  I tried to turn the shaft from the back but it was trying to turn 
>>>the entire front piece (the piece with the bearings and against a false 
>>>front panel.  Has anyone else run into this kind of problem on any 
>>>Heathkit gear?  What did you have to do to get the shaft turning freely again?
>>>
>>>Thank you.
>>>
>>>Jim Pruitt
>>
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>
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III 


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