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Step 4
Breakdown

Posted Sep. 7, 2003

All details of the piano must be carefully noted before it is taken apart. Downbearing, the downward pressure exerted by the strings on the treble and bass bridges, helps determine the tone of the piano. Readings are taken prior to and after removal of the strings. These readings enable us to replicate the original tonal quality. We measure string and key height and note the touch and tone of the keyboard. The keyboard and action assembly is removed from the front end of the case.

String tension is let down gradually in increments to insure an even and slow release of torque upon the cast iron plate (harp). All wires are cut and removed from the harp. Each string is measured and noted, the bass strings are saved for later duplication. A custom string maker will replicate the original with new steel core copper wound strings. The tuning pins are discarded. The pinblock (the seat of the tuning pins) is measured and removed for duplication.

The setting and placement of the harp is carefully noted before removal. By lifting the harp out, the spruce soundboard is exposed and is carefully examined to determine the best repair route.

Case and cabinet parts are taken apart, numbered, and placed in a special racking system for identification. All metal hardware is removed and engraved with the serial number of the piano. These parts are replated, buffed, and lacquered in brass or nickel and re-assembled in the final phase of restoration.

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