GALLERY

The photographs in this gallery document an action overhaul that I completed on a Canadian-built Heintzman bourdoir grand at Brandon University in 2011. 

Top view of keyboard
Top view of keyboard

New, one piece key tops, hand notched and filed for best finish. Material has been buffed out to achieve less of a "plastic" feel.

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Top of keyboard #2
Top of keyboard #2

Wood keys individually cleaned and numbered for easy identification. Capstans polished and lubricated for low friction.

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Bottom of keys
Bottom of keys

Leather key bushings installed for added durability vs. cloth bushings.

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Side of keys
Side of keys

Keys were widened with veneer to correct excessive gaps before new key tops were installed.

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Reconditioned hammer shanks
Reconditioned hammer shanks

Brand new Tokiwa knuckles were installed on original shanks. They were lubricated with TFL-50 and Teflon powder for low friction. Shank centers were repined to close friction tolerances, and screws were polished to like-new look.

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Wippen heels
Wippen heels

New felt was installed on original wippens.

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Front view of keyboard
Front view of keyboard

High-end Crescendo felt punchings for consistent key dip. Key pins were polished and lubricated for low friction.

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Hammers
Hammers

Neat hammer glue joint.

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Close up of key bushings
Close up of key bushings

Leather was used for added durability.

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Back view of hammers
Back view of hammers
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Back checks
Back checks

New Tokiwa back checks.

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Profile view of action stack
Profile view of action stack

Action finely regulated for optimal performance.

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New Hammers
New Hammers

Ronsen hammers, made with felt from the Bacon Felt Company, were installed due to their resilient tone. In a market flooded with harsh-sounding instruments, this is a welcomed change!

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Initial touch-weight
Initial touch-weight

Touch-weight chart before work was initiated. Very uneven and heavy.

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Revised touch-weight
Revised touch-weight

Revised touch weight chart after keyboard re-balancing. Much smoother and lighter.

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