Disassembly of movement:
© 2016 Gary Fields
This movement, from a very nice Daneker wall clock, came to me from a customer, wanting Butterbearings™ installed up and to the center wheel arbor. This will be a pictorial essay and diary of this work, and of other clock and watch movements as I work on them to repair, restore, and improve them with what I am able to do. I hope you enjoy this blog!........................gf
Front of movement
Front mounting plate removed, exposing winding arbor and stopworks and hour and minute train
Stopworks exposed
Retainer clip removed
Hour wheel removed.
Stopworks removed
Back plate with mainspring retainer
Mainspring retainer and winding arbor removed
Exposing some of the inner wheel work
Spacing posts removed
Side view of minute arbor with tension spring, washers, and tension/retainer nut
Spring, washers and nut removed
Starting to remove minute arbor
Minute arbor removed out through front
Small pin lever bridge with screw retainer
View from top showing pin lever and balance wheel in place
Pin lever and balance removed
Movement nuts removed
Back movement plate removed showing wheels in place
Third wheel removal
Second wheel removed
Sixth wheel removed
Escape wheel removed
Fifth wheel removed
Center wheel removed
Minute wheel and retainer
Minute wheel retainer swung aside
Minute wheel removed
The movement in her bare essentials. Trip to the ultrasonic is next.
Things noted during tear down:
> Lots of dried semi-hard grease, some exhibiting verdigris development albeit not serious or in large size.
> Excessive slop in pivots, especially up past center wheel, where there is less force on them. Dried oil exacerbates this problem.
> No visible damage or wear (gouging, grooves, pitting) noted on any pivots.
> No nickel plating observed on any steel surface
> Wheel teeth all appear to be in excellent shape.
Post ultrasonic cleaning:
> Worn pivot holes easily visible, especially in upper end wheels. Will take some pictures tomorrow against white background, easily shows the wear.
> Ultrasonic cleaning accomplished using 1 1/2 gal. of Walmart ammonia cleaner, 1 pint of Pine Sol cleaner. Mildly heated, with clean time of 5 minutes in an L&R Quantrex 280H ultrasonic cleaner. Rinsed in reverse osmosis water (less stains on brass), and dried by forced air heat.