The Leinen LZ4SB lathe cabinet has a drawer that is usually used to store the collets set. This requires to make a wood support to organize the set. I want also to store some usual tools: some live and dead centers and the wrenches needed to operate the lathe. I begin by cutting a couple of plywood pieces to the approximate size of the drawer. I glue them to obtain a thicker plywood support.

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The Leinen LZ4SB leadscrew is supported by two bearings. One of them, the corresponding to the adjusting end, has been eroded maybe for a deficient lubrication. This need to be faced again to recover the bearing surface. We plan to do that using a boring head on the milling machine. To support the part in an orthogonal position first an adjusting stud is turned in a lathe. This will guide the bearing when clamped to the table.

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The two speed driver of the lathe runs in an oil bath. Two plugs let to replace the oil when needed. We made two operations with them: Adding a neodymium magnet to the draining plug to let it to catch the debris. The magnet is a counterbored ring bought at Aimangz. The magnet was screwed to the internal part of the plug. The plus are in a difficult position to be tightened.

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The lathe uses a flat belt to transmit power from the speed change to the spindle. After painting the stand it is now time to install the belt. The belt installed was a 42mm Esbelt LF-14 nylon-leather combined belt supplied by Armengol-Prat. This belt should be glued in-place. This was done by the supplier itself by using a hot gluing press as shown in this picture: After the waiting time to cure the belt glue the belt was tensioned to 0.

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Leinen lathe works face the arrival line. Now we painted the lathe stand and installed three anti-vibration rubber supports. Although it was an easy job the overall result was really impressive. Below there are some pictures showing the result. Note that the headstock is now screwed to the bed!

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