Problems arose such as unstable intonation. The worn-out leather parts (carefully and leak proof knitting as of the modern age) of the instrument needed replacement since they caused air leakage. Many of these leather parts were located in the wind chest – replacing them would resort to disassembling the instrument.
The instrument was experiencing issues with instability and air leaks due to the deterioration of its leather components, specifically those located within the wind chest. Replacing these parts required disassembly for repair.