The European version does not use a transformer and instead takes the supply for the control electronics between one phase and neutral, requiring a 5-wire connection to the electrical supply (3 phases, neutral and ground). One important difference between the USA and European versions is that the USA version uses a transformer wired between two phases, to power the control electronics, and does not require a neutral connection to the supply. Despite its condition, it was easy to follow, since the HLV electrics are quite simple. The USA versions are different.Īn electrical diagram (looking more like an ancient pirate map showing where the treasure is hidden) came with the machine.
Keep in mind, the electric control panel shown here is wired for Europe.
There are also fuses and an "over-current relay" in there. The forward/reverse switching is done via contactors. The two motor speeds are selected by a lever on the lathe bed, actuating a barrel switch in the electric control panel. It is not a sign of weakness to admit that you need help, but rather a sign of being experienced and mature enough to know your limits.įortunately, all the horrible bodges on this machine thus far have proven reversible. The single most important skill a good engineer must possess is to know when to step back when something proves beyond their own abilities and call in someone suitably skilled and equipped to complete the job properly, without risking damage. Too many fine machine tools and other rare and valuable equipment have been ruined by ego-trippers who thought they could fix it all by themselves. I should probably point out that if you feel you need to use blu-tack on a precision lathe, then you are not adequately qualified to do any work on it.
When this machine arrived, the spindle lock button was held in place with blu-tack! Upon removing the blu-tack, the button was found to be dangerously out of adjustment, locking the spindle unexpectedly by gravity alone! It took all of five minutes to remove, lubricate, refit and adjust properly, but it took about an hour to fully remove all traces of blu-tack. What may appear to be a cone-pulley for flat belts is just a barrel assembly, carrying the single pulley along with a spindle-lock assembly, used for mounting chucks and other spindle nose accessories. The spindle is belt-driven from the countershaft and only has a single pulley.
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