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楽器 Yamaha Weddington ClassicのPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Yamaha Weddington Classic 24 ページ。
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TUNING MACHINE TENSION ADJUSTMENT
The tuning machines have spring-loaded mechanisms
which automatically take up wear, preventing backlash.
However, it is possible
to
adjust the amount of pressure
required to turn the machines. Each machine has a tension
adjustment screw, as illustrated.
Clockwise screw rotation tightens the machine. The tuning
machines should
be
adjusted
to
the extent that they are
firm, but
can
turn smoothly. This adjustment is normally un-
necessary, and excessive tightening can lead to premature
tuning machine wear.