Member postings for mark cordall

Yours sounds different to mine (and page 31 of the pdf linked above) I’ll take a picture next time I’m in the workshop.

If you undo the grub screw and then pull the handle off i'm presuming there is some sort of recess that the grub screw locates into. On mine this recess is now a "slot" it appears the handle has been forced to rotate on the shaft a few times. Hence i have no obvious way of re-aligning the handle in the correct position.

Thanks for the replies. Good to now know what the B, C, and A actually give me.

The spring and detent ball had gone AWOL. It's accessed from the inside face of the lever, and the lever is just held in place by a grub screw, so an easy fix,,,, sort of.

The shaft that the handle goes onto has been badly mauled, so it's not possible to determine where the grub screw should locate. The shaft rotates so easily and it's so vague to determine when it drops in/out of gear it's going to take a bit of work to try and get the handle clocked back at the correct position.

Thanks, just what i needed. Looking at page 31 items 29 and 30 are spring and ball. Am thinking this is whats broken, lets hope i can acess them via the handle, so no need to strip down. As for change gears, it seems that for certain feeds it's a matter of 2 cogs stacked on the centre shaft. I'll just make some tidier spacers.

I can't seem to find any description of what actually changes between the 3 gears of A, B and C. Maybe A is the feed per rev as listed on the chart and B C are fater and slower? I'll just have to experiment.

Hello,

Am looking for a little help on a Harrison L5a i've just aquired. I believe the machine to be an L5A, its the type with a 3 speed feed gearbox.

The handle for the 3 speed box is on the left hand end of the headstock, and labeled B C A. I suspect a detent or similar is broken as the lever can freely be swung about 180º and hence very hard to get any gear to engage. Does anybody have any experince pulling these apart? Or some sort of a diagram before i swear and end up with bloody knuckles!!

Also, what is the correct layout (actual physical positioning, not gear size) for the change gears? This machine has 3 gears fitted (50 top, 70 centre, 80 bottom) Both the centre and bottom shafts have a huge pile of washers acting as a spacer which looks wrong? And i seem to recall from looking at another machine that the centre shaft should have 2 gears stacked on it?

Any help greatly appreciated.