[Heath] SB tuning mechanism

[Guy Giacopuzzi]

First of all, realize the bushing that the 1/4" drive shaft goes thru 
can get starved of oil and oiling it might solve your problem...all this 
requires is removing the tuning knob to get to the bushing.  Secondly, 
realize that the LMO has a lubricant that's famous for going sluggish 
with time.  Again, a simple thing to check is the "big dial"....remove 
the drive shaft/friction wheel and turn the big dial with the numbers on 
it.  If it doesn't turn easily, try a drop of oil where the dial's shaft 
goes into the LMO.  If this does not work, you have to disassemble the 
front panel to get to the LMO, remove it, and rebuild it.... Glen Zook, 
rip, had an excellent article on servicing the LMO that should be around 
on the web if you look for it...

Sincerely,

Guy

On 12/7/2021 12:47 PM, Dave Edwards wrote:
> I'd appreciate input on this:
>
> When SB tuning friction gets a bit more difficult, what is the most 
> likely culprit?
>
> This is an SB301, and the rig is sold, built well, and the tuning 
> hardware is in great shape, But from
>
> age, it is now a bit tight. I'm thinking something needs a micro drop 
> of oil, but I really don't want to have
>
> to open the LMO.   And, if the rig is on a long time, and heats 
> up.....yes, it gets easier to tune.
>
>  I think this is a very typical issue.
>
> Anyone?
>
> .....Dave
>
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