Piano Restringing
Changing the strings on a piano is something that a piano needs after so many years. The series of videos below go over the basics of how to replace the strings on a piano. We also have included links to the tools and supplies that would be needed to restring a piano.
Parts and Supplies Needed:
Thanks for joining us today for another
video from Howard Piano Industries.
Where this says it can actually be a
series of videos that we're going to
show you on how to restring a piano.
This is a pretty big job so that's why
there's several different videos we're
going to have that go through the
different steps of replacing the strings
in a piano, with the with the piano
especially an older piano the strings
will wear out the bass strings wear out
or get worn sounding faster than the
treble strings but at an old piano.
This is a piano that was restrung all
probably ten or twelve years ago roughly,
and so I'm not going to actually show
you the steps of the actual stringing
but we show some of that and
some of the other videos that we've got
and so but I'm just going to walk
through all the different steps and
things that you're going to be watching
and make a note of so that you're
going through the right steps for the
process.
So this is this kind of an introduction
some things you want to
look for before you move forward and restringing it.
Now the the different
elements that you want to consider our
first of all you want to evaluate the
condition of the piano to see if
you know, if there's any repairs or anything
like that need to be done
as part of the restringing process right here
these right here where the strings run over
are called the bridges, you want to
look at that and sometimes there will be cracks.
Here where the strings run over it
or there could be separations between
the bottom of the bridge and the top of
the soundboard so you want to check for that.
Then so this is the this is the
main bridge right here
and then there's the
the bass bridge which is up here that
the bass strings run over so you want to
check that you want to check the
condition of the soundboard which is the
whole piece of wood underneath this
underneath the strings and
underneath the plate to see if there are
major cracks or even minor cracks that
that would maybe need to be repaired.
As while you have the strings off this
piano had some very small cracks that we
didn't repair on when we did the
restringing and they're holding right now.
I don't see that the cracks have
separated over time which is a good sign
so those are some things you want to
watch you want to check underneath to see,
you know, if the ribs are separating
or anything like that that you want to
be aware of before you delve into the
process of replacing the strings.
Now the different elements that you're going to
want to be aware of are the strings
themselves you've got trouble wire or
plain wire you know in this piano it's
all the way from down here all the way
up to the top, you know and that's the
non wound strings so you just buy larger
coils which we'll go into in a future
video as far as the details of that and
then there's the bass string so okay
which are this whole section down here
and they usually run over,
over the string over the plain wire strings
or at least a section of them.
So those all have to be custom-made
you know by a string maker so and
we offer those available as well and then
the other element is the main element is
the tuning pins usually if you're going
to replace the strings you want to
replace that the tuning pins as well
one other structural elements you want
to check on is also is the pin block
okay so now you can't see the pin block
in this piano or even in most pianos
because it's underneath the plate,
but the pins go through through the plate
and into pin block okay so there's a
piece of laminated wood underneath the
plate that the pins go into.
You can see the bottom of the
pin block if you take the
fall board and the action out
and then look inside from underneath
even then it's a little bit difficult
because there's not a lot of room but if
you take a flashlight and shine it up in
there you can usually see the bottom of
the pin block and you want to see if
there's like really bad cracks in it
you know, because then it may be something
that the pin block also needs replaced
okay but,
but if the pin block isn't
fairly and you know if you once you
take everything out and you can,
you know consider taking the plate out especially
if the if the sound board needs repaired
but that's a hole underneath and
another undertaking that we're not going
to go into detail and this is a series of videos
but then if you know if
you take that out then you can see the
top of the pin block and I'm get a
better idea of the condition of the pin block
but you do want to check the
tightness of the tuning pins because
that's going to determine you know if
you're keeping the same pin block
that'll determine what size pins you're
gonna go up to okay so if the pins are
all fairly tight, you know quite tight,
you know a normal amount of tight you
know if you're using a torque wrench and
you they measure you know 120 or higher
you know that's that's fairly tight.
Then when you replace the tuning pins
which it's always a good idea if
you're restringing to replace the tuning pins
because usually the otherworld
tuning pins look bad and it's good
to go up a size to just get some more
tightness in those pins but if they're
if they're fairly tight like I say 120
inch pounds are higher
then you want to go up, you can just go up one
size larger okay so if you've got size
two tuning pins you can go up to size
three if your size 3 up to size 4.
but if they're below that or looser than that
you know on the loose side then you want
to go up two sizes okay they're like
really loose then that's maybe a sign
that the pin block
we need to be replaced and when you're
going through this.
So just keep that in mind so as you take the pins out
you're gonna want to measure one with a
micrometer to see how many thousandths
of an inch the size of the pins are okay
there's gonna be a slight variance so
you might want to measure several of
them across the range of the piano to
see what size the pins are.
And then as you take the strings
off you're gonna measure all of them and
we'll talk more about that in the in the
next video but those are those are the
basic elements you know some other
things you may want to do as part of the
prep process or that you should do is
make sure that you take note of any felts okay.
Sometimes in here there's
there's felts that are,
this one didn't have any so I
didn't put any back in it sometimes
there's felt strung between these
strings that stringing felt.
Sometimes there's hitch-pin punching this one had
just hitch pin punching 's in the bass
section so I don't know if you can see
these red circles here but those are
hitch pin punching 's and so we put them
back in that section but the rest of the
piano didn't have them so we didn't put them in.
You know so pretty much,
you know if you want to replace the
felts that were there originally unless
you have some reason or other to do
something differently but in most cases
that's what you want to do.
This one also had these bars here you want to
make sure you make note of the position
of those so that you can put those back
where they were originally sometimes
they'll have the movable bars which got
another piano that has those and you
want to make note of where those are and
sometimes they'll have individual
movable bars here and this one has a
brass bar here on each of this,
on each of these sections that you want to make
sure you get back in the same position
that they were before you took the
strings off so lots of notes that you
want to take as before you start taking
the strings off of the piano,
you know and there's things like damper felts and
so forth that you could be replaced as
well while you're in the process of
restringing because often times those
and of course the action is a whole
other thing but this is just regarding
the replacement of the strings so those
are some things to think about as and be
aware of and prepare for as you go into
and start the process of restringing.
Our website is
howardpianoindustries.com
This is uh, this next video we're going
to show you is part two of our restringing video,
and showing you the
process of taking the strings off,
you know making sure you take good record
and measurements of the strings so that
you know you know what to do when when
you go to put it back together.
Like I mentioned in the first video the
introduction video for restringing.
You're gonna have to take good
measurements of the strings and what
sizes they are, because as you look at
the strings you might look and say oh
well they look the same size but there's
actually probably I don't member exactly
how many different sizes in this one but
on the average a piano will have about
ten different, ten different sizes
of treble wire plus the bass string.
Okay, bass strings those have to be
custom-made by a bass string maker,
but you want to take good measurements and
as you take the we'll get to the bass
strings in a second,
but the first thing you wanna do is something
have some kind of a system to keep track and
chart your sizes and other different information.
I actually made a chart here
that shows some,
you know that I made up
and I'm gonna put this on our website at
howardpianoindustries.com
so you can get a copy of this if you want to use it
for making your records,
but we can see
that you know I've got up here and shows
the the piano the number of single wound
bass strings the number of double wound
and bass strings those are these item
up here you know I wrote up here the size
of the tuning pins that I took out so
I can determine you know the the same
length and then of course and determine
what diameter I want the the new tuning
pins to be I've wrote up here the number
of triple wound bass strings for this piano
and then,
I put, you know for the bass strings
you know you're not going to
have a lot of information because you're
going to be sending those in for
duplication but once you get to the
treble strings then you
gonna want to start to put the diameter
and you're gonna have a one of a good
micrometer to measure each individual
bass string so that you can start to
make notes of what size,
some of the other notes that I put some some
strings are tied but most of them are
gonna be wrapped around but I'm putting
notes like third string tied and
I'll show you in a minute what that
exactly means, but as you can see on here
when you got a string it starts at the tuning pin
comes up to the runs over the bridge,
wraps around a hitch pin and then
comes down to the next tuning pin.
Okay, that's all one piece of wire but,
and that's how most of the treble strings are,
but you've also got some
that are tied.
Let's see if,
I've got any in this piano at all.
I don't believe this piano does
but some of them you know
if it's an odd number of
strings
there'll be,
they'll be tied at the end.
Like sometimes the first
string on high C will be tied and it
just means that there has to be a loop
made at the end and we've got a video
showing how to make a loop on a string
for that purpose.
I did have one piano
that I restrung that every single treble note
had a hitch pin and so he had to
make a loop for each one of those,
which one of those strings which took more
time and more effort but
that was what it was
so that's what we did on that piano,
but when you
start to remove the strings though you
want to be careful not to just start at
the top and take one string off at
time until you get to the bottom you want
because there's so much pressure
from the strings on the plate.
You want to do it evenly so you might loosen
you know all the
all the bottom there all the bottom
tuning pins for each string to start to
you know destabilize the pressure of the
weight off the strings on the plate and
you might do that on the whole piano and
then maybe do all the top strings and
then go back and through and do the
middle strings just to loosen
the tension on them so you're kind of
evening the that as the tension comes
off so you don't have it all coming off
all at one section and enough at one
time and then leaving the rest of the
piano all up under tension so you can
equalize the tension that way as you
start to loosen it and then once you've
got the pins or all the tension off.
When you go to loosen the tension on the strings,
the tool I find to be the
easiest is this ratchet star head which
is this piece right here it's got the
this you know the star bit on the end to
fit over the tuning pins the same as
you'd have on a tuning hammer
I wouldn't recommend just using a
regular quarter inch socket because it
it won't work very well on the two
tuning pins in most cases but you take
this and you put it on the pin and then
I would take it one time around to
loosen too or take the tension off okay
if you do one full rotation on the on
the like this that'll take almost all
most of the tension off the string okay
so I would do that on again one string
for each note and then go back and do
another string for each note and then do
the third string so that'll equalize the
tension coming off so once you've
got them loosened then then what you'll
start to do is take take the string off
of one or what you can do is once it's
loosened enough and you might have to
loosen it a little bit more to be
able to get access to it as just snip the wire.
Okay, once you've got the wire taken off.
again you're gonna measure it okay and I
usually start measuring at the top end
and then measure each and you only have
to measure one string for every note
because you know all three strings of
each note are going to be the same
diameter now it's pretty much the same
as on a grand piano is that is an
upright piano and this is obviously a
grand piano usually you've got the lid
off when you're doing it but if it's an
upright piano you're gonna want to lay
the piano on its back you know we sell a
piano tilter or you can make some kind
of a stand or something or you can lay
it down on the floor it's just a little
bit harder to work with if it's down on the floor.
So that's the tool that
I usually use so once you've got the
strings off and again clip them off and
take measurements and made a chart
of the size for each individual note
then you know what size wire you're
going to go to replace it with when you
start to go to put the strings on then
then the next job is to
take the tuning pins out.
Got another tool,
you can use this ratchet star head
but that's a lot of threads too so
that'll take you a long time so I like
to use this power tuning pin socket
there it is it's got the the star tip on
the end and this has met me to go into a
drill with reverse functions so it's got
to be reversible drills so that you can
use that for removing the tuning pins
so you just put it on there you've got your
drill here and then pull it out.
In reverse mode and it's much faster than
then using this tool for
removing the tuning pins I mean you can
do all of it with a tuning hammer if you
got one of those but
that's
that's a lot more work and a lot more difficult
method it's gonna take you a lot longer
so those are a couple tools that are good.
So,
again once you've got your pins out then
you're gonna of course take
measurements of several of the pins to
determine what size you've got so you
can have a starting point for replacing
the pins and know what what size pins
you're going to go into,
then when you get to the base strings,
taking those off
you want to make sure because you're
gonna be sending these in for
duplication that you know keep them
in order what I'll do is I'll take just
a cord or a wire or something to string them on to
and as you take them off
you do the same thing you would remove
them from the and clip them off of the
tuning pin and then you take the loop
and loop that on to the wire okay and
put them in order if there are any
strings that are missing that you don't
have you know the string maker needs to
know that so put like a,
you can put a punching or a piece of paper or
something that in there indicating that
there's a missing string and in the
notes that you send with the bass
strings when you send them in for
duplication you want to indicate how
many single string notes there are which
means the string the strings that are
just one string per note how many double
strings there are which is the notes
that have two strings per note and of
course there if there are any triple
string bass notes, notes that have
three bass strings per notes okay
because you're gonna be sending those in
and they need to know how many there are
so now that's some information that you
need to include with the bass strings
when you send them in for duplication
but you know, so once you've got the
strings off and the bass strings you
know put grouped together and ready to
send off to the bass string maker,
you know then you can kind of evaluate
the soundboard and you know other things
and if you're going to take the plate out
just determine.
the nice thing about
taking the plate out then you can paint it.
I mean you you can paint it with it
without taking it out but
it's more difficult because you got to
make sure you tape everything off and so
that can be done but if you take
the plate out then you can see
underneath it to see if there's any
cracks that need to be addressed when
you get to that point so that's that's
the next step in the video just continue
to watch as we have more information in
the next couple videos for you
Thanks for joining us for this next
video on restringing a piano from
Howard Piano Industries
now and the first couple videos
we went through lots of details
on prepping and taking the
strings off so once you've got.
You know, once you got the strings off
obviously we're just talking about the
process here we're not showing you all
the strings are still on this piano
obviously but when you've once you've
got all the strings off of the piano and
you got to determine which size that
you need and of course you've gotten
your new bass strings from
the string maker and determine which
sizes of wire you want to determine how
you're going to get your treble wire
okay this is a wire canister
that we use for one-pound coils of
piano wire, so if you use the one-pound
coils you have to have a canister for each size.
The other option is to use the
third pound coils which come in a
coil like this and you can I usually
recommend getting them with the brake
you can get them without the brake but
it doesn't do you a lot of good but you
want to get them with the brake usually
so that you can keep the wire under control.
Excuse me.
So, you know these
are again these are third pound cores in
most cases a third pound coil of each of
the sizes is going to be enough but you
can kind of determine once you've got
once you've determined which size you
need for which notes you can estimate
about how many feet of wire there you're
going to need depending on how many
strings so there may be you know there
may be four, or six, or eight notes for
each size and then you measure the
approximate length for each
string that you need in that
size in that section and you can come up
with how many feet that you're going to
need total of the individual sizes.
So, from there you know and where we sell
the both the third pound and the
one-pound coils
show us how many feet you get in a you
know either a third pound or or one
pound so that you know how many feet if
if that's gonna be enough for your
project for you each of the different sizes.
So once you've got your wire okay,
and either the, I always use the 1 pound
of coils just find it a little bit
easier to use but once you've got that
then you're gonna start at the high
treble section okay, that's the
best way to start because you'll start
there you move your way down and you'll
install the bass strings last obviously
you've got a lot easier to install these
tenor strings right here that go
underneath the bass strings if the bass
strings aren't there to be in your way
so that's the main reason why you start
at the top and go to the bottom but what
you'll do is you'll and we've show it
and we've shown in another video how to
install a string when you've got you
know we've got the tuning pin out we've
got a video on that that you can watch
on how to install the string itself but
obviously the main thing is to make
nice tight coils so that the string will
be stable and then you want to make sure
that you put the tuning pin in so that
the bottom of the coil is all about,
I think it's about quarter inch or so from the
from the top of the plate okay so,
you know once you've once you've coiled
your C if you have a couple tools here.
Once you've coiled your your string onto
your pin you'll take the pin out put it
in the hole and then take a tuning pin
punch and I'm in a hammer set it on the
pin hold that in place and then drive
the pin into the pin block,
you don't want to put it in all the way
immediately put it most of the way in
but you want to leave some room for
tightening up that coil because even
though you've
got and and that'll be for the first pin
once you've got the first pin in there
you're gonna run the wire down here wrap
it around the hitch pin bring it back
and then you're going to cut off your
wire three inches from the hole
for the second tuning pin, and then coil
that wire under the next tuning pin,
take it out put it in the hole again
use a tuning pin punch, pound the Hammer
I'm sorry the pin into the hole and then
you're gonna bring them mostly up to
pitch you know you don't want to put all
the tension on again you don't want to
put too much tension in one one section
okay but you'll you'll bring them so
that your coil is fairly tight now
won't be up to pitch yet but at least
you'll have the tension on it to hold
that coil in place the other tool that
you want to make sure you do have is the
coil lifter string spacer tool you're
gonna use that and set that underneath
the coil and hold that up as you,
as you tighten it I always use the ratchet star
head again to turn the pin and
holding that, holding the coil up with
the coil lifter as you as you do that
okay so those are the main tools.
I've got a stringing hook to here
that is handy as well so that's another
tool that I use sometimes so, and then
once you've the other tool which we
don't actually sell these players but
you want to have something to squeeze
the Beckett, the Beckett is the place
and we show this in this video
showing how to install the string.
The Beckett is the the point where the string
bends and goes into the hole of the
tuning pin so you're going to squeeze
that and keep make sure that that's nice
and tight not
not loose because that'll cause
instability in the tuning original for a
while until the string tightens up.
So once you've got, you know so
then you'll start the process you know
you'll do the first two tuning pins then
the next two and the next two and so
forth and you'll go through all through
the whole piano through all the,
all the treble strings and then you'll do with
for the bass strings and then once
you've got all the strings installed
then you can start the process of
bringing them up to pitch strings new
strings will stretch, so,
you know,
you'll go through it, yeah by the time you're
done it'll be way out of tune again so
you're not going to try to fine tune it
or anything initially but you're gonna
be going through and pulling up and
getting close to pitch and you'll have
to go through this several times with
the new strings until it starts to
stabilize but once you've got that and
of course as we talked about before you
put the strings on you want it if
there's hitch pin punching or felts
that go in here you want to do all that
first you know gluing the felts on you
don't have to glue the hitch pin
punching on the string tension will
keep them in place
but,
but that's the process of
installing the strings you know as far
as a basic,
basic oversight of how the
process is done, but, if you have any
questions feel free to let me know
our website again is
howardpianoindustries.com
Products used in this video: