McCormick Deering model 12 sickle mower

[jardinier47]

I have a Farmall F12 fitted with a model 12 sickle mower, can anybody tell me how to remove pitman flywheel from drop box, there is no key way or locking screw

 

[DeltaRed]

If you don't see a groove for a woodruff key,then I'm pretty sure it is a tapered spline.This is just an 'guess' based on years of (hard knocks) experience.

 

[jardinier47]

(quoted from post at 07:54:14 12/19/19) If you don't see a groove for a woodruff key,then I'm pretty sure it is a tapered spline.This is just an 'guess' based on years of (hard knocks) experience.

Thank you for your reply, the shaft is flush with face of pitman flywheel and does not appear to have splines, is it possible it is threaded on with L.H thread

 

[DeltaRed]

Cant answer that. If you can find a parts drawing,maybe you can see how it's put together.

 

[jardinier47]

McCormick Deering Model 12 Sickle Mower
Does anybody have a parts drawing of the gear box that drives the cutter blade