Maintaining a Second-in-Command Mantel Clock from Sessions of America, Part Four
In the final instalment of this series, we delve into the bushing work, re-assembly, and testing of a clock movement. This article provides an insightful look at the process of using a Bergeon Bushing Machine to restore the proper function of a Sessions American No. 2 mantel clock.
The Bergeon Bushing Machine is a valuable tool in clock repair, primarily used for replacing worn pivot holes by installing precise bushings. This process ensures improved wear resistance, accurate gear alignment, and the preservation of original movement parts for long-term reliable operation.
To use the Bergeon Bushing Machine, follow these steps:
- Disassemble the Movement Carefully take apart the clock movement to expose the plates with worn pivot holes that need bushing.
- Clean and Inspect Clean all parts, polish pivots, and inspect holes for wear or ovality. Identify which holes require bushings for repair.
- Prepare the Machine and Tools Set up the Bergeon Bushing Tool (e.g., Bergeon 6200 model) with the correct size bushing fitted.
- Press or Install New Bushings Insert the bushing into the worn hole, then use the machine’s lever or press mechanism to carefully and evenly press the bushing in place.
- Finish the Bushed Hole After pressing in the bushing, ream or polish the hole inside the bushing to match the pivot size, ensuring the pivot rotates smoothly without play or binding.
- Reassemble and Oil Reassemble the clock movement, apply synthetic clock oil to pivots and bushings, and perform timing and beat adjustments to optimize performance.
- Test Wind the clock and monitor its operation over time to confirm the bushings hold securely and the clock runs accurately with minimal wear.
The Bergeon bushing machine is favoured by horologists for its precision, allowing press-fitting bushings to restore worn pivot holes while preserving original movement parts for long-term reliable clock operation.
In this article, we share our experience servicing a Sessions American No. 2 mantel clock, a Seth Thomas type 89 movement, and a clock that has been on the bench for 5 years. Subscribing to our posts will keep you updated with the latest repair and maintenance techniques for antique and vintage clocks.
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[1] Bergeon Bushing Machine User Guide [2] Sessions American No. 2 Mantel Clock Repair Guide [3] Seth Thomas Type 89 Movement Repair Guide [4] Clock Repair Techniques for Antique and Vintage Clocks [5] Steven Conover's Striking Clock Repair Guide [6] Sessions Clock on the Bench for 5 Years: Repair and Maintenance Journey
- The Bergeon Bushing Machine is a crucial tool in clock repair, particularly when restoring vintage clocks like the Sessions American No. 2 mantel clock, where it can replace worn pivot holes with precise bushings to improve wear resistance and ensure accurate gear alignment.
- By following a step-by-step guide on using the Bergeon Bushing Machine, horologists can implement bushing work, re-assembly, and testing on clock movements, contributing to the home-and-garden lifestyle of vintage clock owners while also embracing traditional technology.
- As owners of antique and vintage clocks, subscribing to the latest repair and maintenance techniques for these timepieces allows individuals to maintain their lifestyle while preserving the cultural significance of vintage clocks, keeping the legacy of clockmaking alive in the face of advancing technology.
