Re: {Collins} Cleaning (transmitter) variable caps

Mark, There is a product called "DUST-OFF" or "DUSTER" etc and they are all
pretty much 1,1,1,2 Tetraflouroethane. This product blows stuff off and out
of crevices pretty well. Take a care on where it winds up - see below.

Often, if the rig has been around a smoker or an environment where there has
been oil or hydrocarbon volatiles, the dust will be stubborn. There is a
similar cleaning product made with Tetraflouroethylene.  The difference
between the ethane and the ethylene is that the ethane comes out a gas and
the ethylene is a liquid and does a better job of "scrubbing" as it goes
through. Whatever you use, make sure that you clean in a direction that
moves the residue out of the rig and the plates and bearing and any close
moving components like trimmer. The residue will have the dirt in it and if
it runs in a trimmer, for example, it will move the dirt in, evaporate , and
then you have a crudded up or stuck trimmer.. This is one of the issues with
"WASHING" rigs.

I like to put the rig upside down on a nice full fluffed terrycloth towel
and let everything get sucked up by the towel. Clean with the plate open,
but remember that they are vulnerable as hell at that point.

Let us know how it goes,


-----Original Message-----
From: Collins [] On
Behalf Of Mark Pilant
Sent: Sunday, November 02, 2014 3:05 PM
To: Collins List
Subject: {Collins} Cleaning (transmitter) variable caps

I spent some time starting to clean up the KWM-2 I recently picked up, and
all is going fairly well.  There were some seed husks on the inside and some
possible "droppings" as well.  However, I think these may have dropped
inside through the cabinet top as I can find no other evidence of small
furry animals visiting the inside of the rig.  Which I take to be a very
good sign.

There are some curious things to investigate, as it is clear someone has
worked on the rig in the past.  But I digress :-)

I completely removed the final cage as it was really dirty inside.  Once
off, I could see how bad and start to clean.  It has been progressing
nicely, but I did notice a "film" and lots of dust on the plates of the
variable caps.

I'm wondering if there are any good ways, short of "dunking" the entire
chassis, to clean these in place.  Or, would I be better served removing
them so I can really clean them.  I could use either some sort of solvent
(detergent / water) with a soft bristly brush or I do have an ultrasonic

Looking for comments and suggestions (as I await the Hi-Res S-Line and KWM
DVDs) welcome.


- Mark N1VQW
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