Beyond the major drive components, several other items will likely need attention.
: Widely considered the primary archive for analog audio manuals. While registration is required, the library contains high-quality scans of the service manual, owners manual, and supplementary adjustment guides. Many users reference this site for "TD124 clutch adjustments" and speed mechanism diagrams.
The manual instructs you to remove the platter, pull the inner shaft, and clean out the old oil. Crucially, it notes the thrust ball (Part #138) at the bottom. Do not lose it. The manual says to replace the felt oil wick (Part #137) if it is hard. thorens td124 service manual
| | Likely cause – as per manual / community | |--------------------------------------|----------------------------------------------------------------------------------------------------------------------| | Platter slow to reach speed | Belt slipping; idler wheel tyre glazed; oil too thick; eddy brake mis‑adjusted. | | Speed hunts or drifts during play | Motor bearings worn or dirty; stepped pulley bearing dry; belt contaminated with oil. | | Rumble or grinding noise | Idler wheel bearing worn; stepped pulley bearing worn; motor running without adequate oil. | | Platter does not lift when stopping | Clutch band out of adjustment (three conical bolts need resetting). | | Loud motor noise through speakers | Motor grommets hardened; idler wheel vibrating; motor not correctly isolated from chassis. |
The most valuable resource of all is the passionate and knowledgeable online community. These forums are where the real, practical wisdom is shared daily. Here are the must-visit destinations for any TD-124 owner: Beyond the major drive components, several other items
Replace worn factory plastic thrust pads with modern polished steel or bronze upgrades to reduce rumble.
Drop the motor, disassemble the housing, clean the rivets/screws, re-oil the felt storage pads surrounding the bronze bushings, re-center the rotor, and reassemble. Many users reference this site for "TD124 clutch
Hardened motor isolation grommets or a warped idler wheel.
The Thorens TD124 is a masterpiece of audio engineering. Built between 1957 and 1967, this Swiss turntable remains a holy grail for audiophiles worldwide. Its unique drive system combines a belt and an idler wheel to deliver exceptional torque and musicality.
This is vital. The manual specifies:
The idler must be perfectly round, clean, and compliant. The manual explains how to adjust the stepped pulley height so the idler wheel aligns perfectly with the four speed steps (16, 33, 45, and 78 RPM). Main Platter Spindle Bearing