Taking apart the tape transport allows for thorough cleaning and reveals hidden areas that require attention. While this approach makes sense for restoration, disassembling most of the transport is necessary anyway for replacing the rubber wheels.

NOTE: It’s crucial to avoid disturbing the tape head assembly. It’s likely still properly aligned, or very close to it. Unless you’re certain they’re faulty, there’s no need to remove the tape heads at this stage.

This image highlights the four rubber wheels that need replacement:

I source the replacement wheels and belts from Martin Olsen, who has carefully researched and produced accurate reproductions specifically for the Beocord 9000. Here are those replacement parts:

This photo shows the tape heads, pinch roller, and the typical dirt accumulation found within these units:

One of the wheels needing replacement is integral to the Beocord clutch assembly. I’ve observed cracks near the pulley shaft mounting points (where small brass inserts are embedded in the plastic) on every Beocord 8000 and 9000 clutch I’ve encountered.

To address the cracked plastic, I disassembled the clutch. Sections of brass tubing (8.73mm x 0.355mm), sourced from a hobby store specializing in remote-controlled vehicles, were cut with a Dremel, deburred, and epoxied into place. These sleeves reinforce the plastic and prevent further damage. The brass mounts for the clutch shaft are removed during sleeve installation.

Another necessary repair involves the tape head transport leaf springs. One broken spring mount was already apparent, and further inspection revealed cracked and loose plastic near the cassette holder open/close dampening gears.

These areas, along with the broken spring mount, will be repaired with epoxy.

To allow for proper curing, I completed the cleaning and epoxy repairs the previous night. This image shows the reinstalled leaf springs that secure the tape head transport. With fresh TriFlow Red Grease, new 2.5mm ball bearings, and the springs in place, the next steps are to install new wheels and lubricate moving parts. This should prepare the tape transport for reassembly and testing.