About what weekly rate difference does a one dot adjustment make on a Hermle
floating balance?
THANK YOU
Jim Lowe
no idea, dont care either, if you need to adjust a floating balance for
rate, start by fully winding the clock, then have a look at the balance,
it should swinging about 270 to 300 degrees point to point, in other
word have a very healthy swing, if the swing is lethargic or swinging
very short arcs then you will need to have the clock looked at.
if all ok, then set the clock to the right time, use a quartz watch or
clock to compare against and only use this one watch or clock for the
testing.
after 1 week, make a note of the time difference, then adjust the
balance, eg. if the clock gained 10 minutes in that week then move the
adjuster 4 "dots" slow, make a note of how far you moved the adjuster
and in what direction.
again fully wind the clock and set to correct time, after another week
you can repeat the adjustment procedure again if needed, and keep making
notes, after a few weeks you should be able to work out how far you need
to move the balance adjuster to correct the rate.
when you want to move the rate adjuster, hold the balance rim with one
hand and move the adjuster with a small wood point (a cocktail toothpick
or a wooden skewer), dont attempt to oil the balance and dont kink the
helical spring ok.
good luck
dAz
Tim White authored a bulletin article for the NAWCC a number of years ago that
was done scientifically.
If you are a member ask the library for info on that article.
june 1983, whole nu 224, vol. XXV, no.3
Thanks
Jim Lowe
Fineclocks:
I am thrilled to see that that article is still in use. Thanks for
reminding me how old I am now...
Tim White
:-), I thank you in writing the article, well written, easy to follow, I
needed it years ago to repair a couple of the escapements that came in
all bent out of adjustment because of previous "repairers", and still
refer to it occasionally just to refresh my memory.
cheers
dAz