My lathe is actually an Engineers Tool Room BL12 – 24. (But in a different paint scheme, and with metric leadscrews and dual dials.
FWIW, in the hope that this may help you: my experiences:
1) In standard trim there is a ball oiler for the Sliding / Facing self feed contyrol; located under the Cross Slide Handwheel, and so inaccessible. With fear and trembling, I took this off, blanked the hole on the top with a bit of 6mm dia brass, and drilled another 6mm hole on the Tailstock side of the housing where it would be accessible for oiling, and fitted new ball oiler. (obtainable from WARCO or Arc Euro Trade).
2) My thread cutting dial was on the Headstock side of the Saddle, using a bit of card as a template, transferred the position of the tapped hole to the Tailstock side. While at it, marked out the housing and milled it to clear the Tailstock end block acting as bearings for the Leadscrew, Power Shaft and Forward/Reverse shaft. Made sure that everything was clean before reassembly, and hey presto, a little more travel at both ends, for the Saddle.
3) BUT pride comes before a fall, and eventually managed to run the Saddle into the Headstock under power.
This bent the feed pinion and its integral shaft, to some order! Warco quoted £38.60 + carriage + VAT for a replacement; well onto £70! With the invaluable advice of Geoff Halstead, removed the Apron and stripped it.
Bought a length of Silver Steel, (16mm from memory) and a 1.5 Mod (again from memory) gear cutter, (£28.60 in total) Made a new shaft and turned up a blank for the gear. The problems with the HV6 Rotary Table chart are related elsewhere on this Forum, but finally (Right first time eventually) produced a 13T gear and Loctited it into the new shaft and fitted a brass spacer between gear and housing (to replace the shoulder on the original shaft. While at it, turned up a nylon bung for the hole where the large gear passes into the Apron, so as to raise the oil level, to ensure plenty of lubrication for the gears and dog clutches. Replaced everything, but the capscrews for the worm housing were slack so tightened them. WRONG! Could not refit the power shaft, so remove Apron and slacken, before refitting to the Saddle, before tightening the capscrews. Short end of 5mm Allen key is too long to fit between Apron and Bed. Shorten key, good: but now fingers tilt the key so that it still does not engage the capscrews, Drive an extension onto the key to place fingers below the lathe bed. Spent 2 hours, working by feel, to tighten the four capscrews. Hurrah!
While the Apron was off, removed the Rack and ground off the first two teeth (unused) and the next two which had been damaged. Pinion now disengages from rack just before Saddle hits Headstock, but is a little difficult, at times to re engage the pinion with the Rack. Funny but the traverse along the bed feels better than original, or am I kidding myself?
4) Thought that I had primary belt slip;
Horrors!, lathe CLOSE upto wall, no easy access. Actually it was the secondary belt inside the Headstock that was slippng. Eventually found that the short lever on the inside of the Headstock was slightly slack on shaft. Disconnect the linkage and strip out the shaft and short lever. Dimple in shaft is too shallow, hence problem. Deepen dimple and reassemble. Only problem is restarting the pivot bolt into the lever. Lack of space for fingers, but using a screwdriver to provide some end load eventually succeeded. Belt is now tensioned, and off to work we go!
Hopefully you won't have these problems; all solvable; so that you have a good useable machine that will last for many years. Mine is now 14 years old, still accurate, very useable, and apleasure to use.
Howard