Do not just start unscrewing. Follow the manual’s order: Remove platter → remove outer chassis → disconnect motor from suspension → remove speed-change mechanism as a unit. The exploded view shows the correct order of washers on the main bearing. If you invert two fiber washers, the platter will wobble.
This is the most misunderstood procedure. The manual explains that the speed is set by a combination of the magnet’s vertical position and its rotational angle relative to the stepped pulley. Do not attempt this without referencing the manual’s magnetic field diagram. You will need a strobe light or a phone app (RPM Calculator or iRPM). thorens td124 service manual
The motor is a precision 4-pole synchronous unit. Do not just start unscrewing
In the pantheon of high-end audio, few components command the reverence of the Thorens TD124. Introduced in 1957, this legendary idler-drive turntable was the workhorse of professional radio studios (like the BBC) and discerning audiophiles for decades. Its rumble-free motor, heavy platter, and pitch stability remain benchmarks that compete with modern five-figure decks. In the pantheon of high-end audio, few components
However, these machines are now over 60 years old. They are electromechanical time capsules. If you own one, or are thinking of buying one, there is one tool more valuable than a brand new Ortofon cartridge or a high-mass plinth: The Thorens TD124 service manual.
Without this document, you are flying blind. With it, you become the master of your machine.