The next stage of the restoration involved removing parts from the Beogram chassis. This was necessary to access the tangential arm for repairs and to thoroughly clean the disintegrated transport bushings.

Fragments of the old bushings were scattered throughout the chassis, even within the tonearm cover.

This image shows the Beogram chassis after a thorough cleaning.

Next, 3D-printed replacement bushings from Beolover were installed.

The new bushings fit perfectly. When reattaching the floating chassis, it’s crucial to align the top and bottom locking washers on their respective threads. This ensures consistent spacing between the bushings and the chassis when tightening or loosening the locking screws.

The tangential arm assembly drive screw was then removed. A significant amount of excess oil was present, and it was discovered that the drive pulley lacked a set screw. It appeared that adhesive had been used to secure it.

Upon removing and cleaning the drive components, a crack was discovered in the drive screw bearing housing. The plastic had become brittle due to stress.

Fortunately, a spare housing was available.

This image provides a clearer view of the drive pulley without the set screw.

The drive screw mounting bracket’s position was marked and removed to facilitate cleaning the oil and replacing the drive pulley.

The replacement drive pulley was sourced from Nick’s, featuring machined aluminum construction. These pulleys offer superior performance and aesthetics compared to the original plastic versions, eliminating the risk of cracking.

Nick’s pulleys come equipped with their own set screws, effectively resolving the missing set screw issue.

Before reassembling the drive components, further work on the tonearm assembly was required. This included replacing the fixed arm detector lamp, which senses the presence of a vinyl record. To access the original lamp, the end cap of the fixed arm had to be removed.

This process was relatively straightforward but necessitated the removal of the entire tonearm assembly. The original lamp was desoldered and removed. The image below displays the disassembled parts alongside the Beolover replacement.

The replacement lamp assembly is thoughtfully designed. Its shape ensures a precise fit within the mounting shell, positioning the LED optimally for accurate detection.

The tracking sensor lamp assembly was another component slated for replacement. Throughout the process of working on the tonearm, a significant amount of excess oil, which had permeated the components and surrounding areas, had to be continuously removed.

Countless Q-tips and Kimwipes were used in the cleaning process.

Upon unbolting the tonearm assembly board responsible for powering the tracking sensor, one of the sensor leads detached from the solder pad. It was evident that the connection had been tenuous for a considerable period. This image also reveals another small, yellow fragment from the transport bushings, highlighting the extent of their disintegration.

The two leads connected to the original tracking sensor lamp housing were desoldered, and the housing was removed.

This image shows the Beolover replacement part installed in place of the original tracking sensor lamp housing.

It’s important to note that the leads of the new sensor lamp assembly have not yet been soldered. This will be done after the tangential arm is reassembled.