Dear All
Could someone please assist me with the gear linkage for the CW. My first question - is the linkage the same on a two speed TS as the three speed CW. If not, what are the differences. Some dimensions would be great. Thanks to some members of this site I have been able to make and obtain the down rod and the rear rod but how are these to rods join together to work the gear box.
.......Thanks
Darryl
I'm not sure I can answer this question accurately as I have not finished off connecting up the linkages yet so can only pass on what I have found out so far - I could well be wrong and happy to be corrected ! :-).
a) the horizontal linkages between the vertical operating rod (909D) and the gearbox for the 3 speed (900D) is different to the 2 speed one (1286D). It is longer and the shape is different to allow for the different position of the selector on the gearbox.
b) the Bottom actuating lever for vertical operating rod 1298D appears to be the same for 3 speed and 2 speed.
c) there is a distance collar (933D) on down operating rod (909D)
which sits between 1298D and the frame bottom bracket. (Edit
WRONG! the distance collar sits below the tramming handle!) I don't have an original so guessed at the length and outside diameter (1/2" for both). I have not drilled the hole for the pin on 909D for 1298D yet.
but I will set
it up the height of the distance collar so there is the correct tension (...by "feel") between the tramming handle and gate. I roughly made it out of some scrap bronze as a test piece and assumed there might be an iteration process to get it "right"......
Edit: See reply #5 below.
d) adjustable striking rod for 2 speed (1285D) appears to be roughly the same as adjustable striking rod for the 3 speed (899D)
I don't have and original 3 speed linkages so my dimensions would be a guess. I have some original 2 speed parts that might be able to give some dimensions that are common with the 3 speed parts, but maybe another forum member can help out with measurements off an original?
Hope this helps,
Cheers
Hutch