Fobco Star Pinion Shaft and spring

Hi All,

I have almost come to the end of renovating a Fobco Star. It came with the original parts list and drawing, so I didn’t take too much notice of where the various springs went when I dissembled the spring box. Upon closely inspecting drawings on rebuild, it doesn’t clearly show what washers go where.

Looking at the obvious in terms of the internal diameters of the washers, I have laid then out from left to right in the sequence I think they came off.

Does anyone have an exploded diagram of to confirm what I THINK is the correct order: Dome nut, Graduated Friction dial, Silver broad washer, spring, washer (I have these two washers the wrong way around in the attached photo), spring box, thin wavey compression spring (which I assume takes up end float of the pinion when the dome nut is tightened?

All help will be gratefully appreciated.

Regards,

Bruce

Edited By Bruce Stephenson on 19/06/2020 13:53:29

On my Fobco, the large bore washer goes in place after the spring, then the wavey washer, then the graduated dial, then the dome nut. These 2 washers fit around the OD of the nut. The wavey washer allows friction adjustment of the dial when the nut is tight.

I've never pulled the spring out of the housing and I don't recall the "silver" washer. The drill was bought 2nd. hand but it's worked like that for 40+years.

Hope that helps.