Try (0) 1924 412603 the spares department for Colchester/ Harrison lathes, Elland W Yorkshire. Look for it under 600 Group who own it now. You will need as much information as possible, serial number stamped on bed and model etc.

David

Edited By David George 1 on 06/01/2020 08:28:34

A replacement gap piece may well be unobtainable. They are usually fitted and finished along with the bed, with perhaps a scraped surface as well which makes the piece individual.

+1

The gap piece is scraped in, fitted & pinned to the bed casting before the bed formation is milled, heat treated & finish ground.

If anything is available (which, for a lathe of that age from a builder who no longer manufactures, is very unlikely) it would be a part finished casting that would require fitting to your bed casting & then machining through (bed regrind) to get proper alignment. If you were to find the gap piece from another similar model the same would apply.

Could you check back with the people you bought the lathe from to see if the machine's original gap piece is sat under a bench somewhere ?

Nigel B

My Harrison L5A originally had a massive two speed three phase motor fitted.

I have since changed it for a three phase 1400 RPM 1.5kw motor and run it from a single to three phase inverter.

I was looking for the slower speeds on mine rather than the faster speeds.

Phil

PS;-

I did have a single phase 1400 RPM motor on for a while, but it was nowhere near as smooth running as a three phase motor, and I was getting some of the vibrations showing up in the turned finish.

Edited By Phil P on 30/01/2020 17:07:12

Greetings Marcus, If you can find a copy of Model Engineer no 4408, 15th July 2011, vol 207, you will find a description of how a Harrison 1100 (earlier version of the 140) was converted to 240 volt 3 phase operation, using an inverter. This is in the second part of an article "How will you ever move that", the first part being in the previous issue.

It might be of use.

regards

Brian