[pianotech] lubricants

Paul T Williams pwilliams4 at unlnotes.unl.edu
Thu Nov 13 14:35:32 PST 2008


Hi Catriona!

Sounds like they've already spent more that its' worth, I fear!  1/8" 
grooves tells me the hammers are spent. replacing center pins alone might 
or might not help with the vertigris,  it's the bushings also causing the 
problems....graphite is a magnet for more gunk to build up...  I hope they 
understand that this piano may be at the end of its' useful life and your 
work is only going to last for a short time.  Is it a "family heirloom" 
kind of situation?  Those are hard to deal with..(ask me how I know 
this!). How does it tune, or have you tried that yet?  You better make 
sure it's tunable before going any further!! Even at a lower than standard 
pitch.  Where was the pitch when you started on this project?  30 years is 
a really long time, almost too long on an old piano....But I could be 
wrong.

For lubricants, I would use some protek on the contact points at the 
V-bar, bridge pins and bass string termination points, but just a 
micro-dot of it.  How much rust exists on the strings/coils, etc?

I  advise this with much conservative opinion, being very shy of taking on 
big projects with an old worn out piano!!

Also,  what does pt stand for?  An acronym (spelling anyone?) can only be 
put at the end of your name if your an RPT!  If you're not an RPT, go get 
your upgrade to RPT.  There's plenty of ways to go get tested!!  Do it 
this year.  The costs are going way up next year! :>)

I hope this helps!

Best of luck!

Paul T. Williams RPT
Piano Technician
School of Music
5 Westbrook Bldg.
University of Nebraska
Lincoln, NE 68588-0100
pwilliams4 at unl.edu







Caitriona Ireland <catrionna2001 at yahoo.com> 
Sent by: pianotech-bounces at ptg.org
11/13/2008 01:32 PM
Please respond to
pianotech at ptg.org


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Re: [pianotech] lubricants






What lubricants to use where in reconditioning an upright action in 
1909/10
production run Conway Boston & Company full size upright, serial number
16691. 

The action was extremely dusty almost unplayed for 30 years, before that
never much played at all. Hammers have 1/8 grooves have retained most of
factory shape, flanges are all not loose, no screws loose, dampers all
functional after cleaning thoroughly, damper rod not bent, pedals 
regulated,
spoons and most of action needs regulation. Graphite has been used on much
of the action friction points,piano located in a semi-arid area of Western
Montana, USA, with mild winters some rain and a little snow sometimes,
summers moderate to hot. 

Piano has remained in same building for most of its life and has been
indoors all of its life except for moved from original owners house in
current area to present location in same local area. 

I am cleaning the action thoroughly. The action has had liquids pop, etc.,
spilled on it in the upper soprano and upper tenor areas, have removed
corrosion/verdigris and dust from most of the action now.

I have replaced all springs (jack, damper and hammer butt springs, 
replaced
all bridle straps, replaced corroded center pens and felts, renewed felts 
as
much as possible, replaced where absolutely necessary, leathers are only
slightly worn.

I am currently regulating action, will then lube; also I have repaired and
reconditioned keys and key bed with new felt and paper punchings, set
height, key dip,leveled keys and regulated lost motion, have yet but will
regulate rest of action.

The clients don't what to spend a lot reconditioning their piano a wise
choice for a Conway Boston & Company upright piano.

Sincerely
Annalee Smith, PT


 
Katrina 


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