Mike,

I thought all those BR's ment it was cold up there.

I know this has been gone over a few times recently, but I don't think 
you want to "oil" anything.    The shaft that the little roller wheel 
rides back and forth on  probably has some conductive grease  on it. 
You don't want to transfer any of this grease to  the contact part of 
the roller wheel, or to the  silver plated coil winding.

As I mentioned earlier, my Palstar recommends a cleaning of the coil 
winding and roller  with 70% isopropyl alcohol twice a year.  I probably 
do mine once a year.  Your milage may vary.  Do what MFJ says, using the 
stuff MFJ says to use, and hopefully all will be well.

I'm not aware of these things being "sealed", but  the list of things  I 
don't know or understand gets longer evry day.

73, have fun in the contest.  If you hear me, stop and say hi.
Steve KW3A


On 2/25/2014 3:34 PM, Mike Ryan wrote:
> Hi all: <br/><br/>Just gotta question about the roller inductor assemblies in manual tuners.<br/>As periodic maintenance, do you have to clean and re_oil certain components? <br/>I feel lately I'm getting handed BS as it relates to my MFJ-986. <br/>A couple of locals, including a friend of mine who helps me from time to time, tells me that you don't have to clean and re_oil the roller inductor or other components because they are sealed. <br/>So what am I to take from that is, throw my tuner away because MFJ and I concur that the roller inductor maybe pitted and the contact wheel isn't making a full proper contact and that's why I'm getting that blasted 75M issue. LOL <br/>I can get the part from MFJ for 63.50USD plus shipping and exchange and I think that would be considerably cheaper then sending my tuner to Toronto Ontario for repairs. <br/>After the contest this weekend, I'm gonna have to just open that sucker up and get my XYL to look at things
>   while I rotate the roller to see if there's any skipping. Is there anything else I should look for? <br/><br/>73: <br/>Mike VO1AX <br/><a href="https://overview.mail.yahoo.com?.src=iOS"><br/><br/>Sent from Yahoo Mail for iPhone</a>
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