[pianotech] Pin Driving Fluid Search

[David Love]

If bending is the issue.  As I mentioned in another post, the lubrication
might reduce stress to the lining of the hole.  Otherwise wouldn't they call
it pin torque fluid?  Sometimes there is something in a name.   

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Monday, April 19, 2010 8:49 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Pin Driving Fluid Search

David Love wrote:
> Did you notice or note any difference in the ease with which the pins were
> able to be driven with each one?  

Not really. It's not that there wasn't a difference, but that 
it wasn't enough to be remarkable, so I didn't really care. 
Driven pneumatically or with a hammer, the pins go in in 
either case. I'm more interested, as are you, in the result.

Since you mentioned it though, what's driving fluid for when 
installing tuning pins? I find epoxy to be a nice lubricant 
for driving bridge pins, but it's a tad less likely that 
tuning pins will be bent during the driving process without a 
functionally similar lubricant. I always presumed driving 
fluid to be for after stringing torque levels, rather than 
driving ease.

Ron N