Recent content by parvum

Nutlink A section

Probabley 1/2 BSF or UNF

Helo Cabinetman. To adjust the headstock bearings, which are angular contact bearings, you need to first remove the grub screw in the collar fitted on the outboard end of the splindle, watch out for the brass plug the protects the threads on the splindle and is fitted under the grub screw and...

The wingnut is weirdly 1/2 UNF

Hooligan! They are 3/8 Whitworth, You can get these on ebay or cut lengths of 3/8 Whit all thread. 10mm metric will chew up the aluminium threads and they will work loose.

PM sent via conversation Paul

SEcond for Phill and Limey! unless you have a clever toolbar mounted drilling machine, the tailstock V groove adapter works well, but remember to keep the pressure on, trust me I know!

PS to my earlier reply, The bearings a re huge angular contact bearins and they ar adjustable, On the outboard end you will see a collar threaded onto the spindle, remove the grub screw but do not lose the brass pad inth hole thaprotects the fine thread on the spindle, make sure the bearings are...

Hello You will need three short (about 25mm) lengths of 3mm dia silver steel and a piece of brass or aluminium plate about 70mm square and 8 or 10mm thick. Once you have the sindle removed you will see three small holes in the inside ofdthe headstock arranged in a triangle corresponding to the...

I had the same issue with an exert for a patriot chuck onto Wadkin bzl spindle. The cause was the threaded recess in exert was not deep enough. A simple machining error. Sorby confessed to this being the problem but had no replacement at the time.Life is short and I have a metal lathe so the...

Hi Amadeus, You are quite right, the bolt will only come right out once the barrel has been withdrawn. You may be able to get the barrel to move backwards by gently heating the tailstock casting and tapping the barrel backwards with a soft drift, to avoid damaging the mouth of the morse...

Hi again Amadeus The part securing the barrel from moving forwards or backwards is bolt with a concavity machined in the side of it that matches the diameter of the barrel. The barrel is only free to move when the slot in the bolt and the barrel are exactly aligned so tightening the lever...

Hi Amadeus, The tail stock barrel is removed from the rear, by pad bolt I assume you mean the wedge that locks th barrel when the lever is rotated. This wedge is released and removed from the casting by gently tapping it down. The barrel should then be able to be tapped rearwards ie towards the...

Hi Peter, You should be able to knock the taper out of the chuck by using a punch on the end of the taper visible in your picture of the open jaws. hope this helps, regards Paul