[Drake] "stick / slip"

K6JEK k6jek at comcast.net
Thu Feb 12 15:34:13 EST 2009


That is the magic website.   I'd been told there was  no fix for the  
swollen plastic gear problem on my R4C.   But Neil figured out how  
and produced this terrific step by step with pictures.

This isn't something you're going to fix in a few minutes.   Be  
prepared to spend an afternoon on it.   But it will work.

Jon



On Feb 12, 2009, at 12:07 PM, Garey Barrell wrote:

> Ron -
>
> Check here -
>
> <http://www.wb4hfn.com/DRAKE/DrakeArticles/PTO/Drake_PTO.htm>
>
> Probably item #3 on the list.  Neil even calls it 'stick-slip'!
>
> I have also seen gunk build-up on the rear "bearing" for the PTO slug,
> the brass rod that sticks out the back and is "supposed" to slide  
> freely
> in the phenolic backplate.
>
> 73, Garey - K4OAH
> Glen Allen, VA
>
> Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
> <www.k4oah.com>
>
>
>
> bonddaleena at aol.com wrote:
>> Hi to all. I have a small Drake collection. I KNOW I have encountered
>> this problem in the past (and actually fixed it). Trouble is I suffer
>> from CRS and cannot remember the fix!!
>>
>> It is a simple problem. Perhaps it should be called 'stiction' ?  
>> Simply
>> put, once the PTO knob is moving, my SPR-4 is as smooth as silk.
>> However, if you stop turning, there is a small bit of friction to be
>> overcome before it smoothes out again. When trying to fine tune a
>> station, it's aggravating because it's jerky.
>>
>> Can anyone refresh my aging brain cell (singular!) ha ha
>> tnx
>>
>> ron
>> N4UE
>>
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