(1) Check each complex shaft in its frame seat whether there
is stringing phenomenon, whether the top wire is tightened,
must be installed firmly, the complex shaft without rotating
stringing phenomenon can be on the complex.
(2) Choose the appropriate side of the meridian complex, the
side of the meridian complex should not be too large, not to
mention the use of loose complex, multi-head complex.
(3) Both sides of the complex should be equipped with shims,
and the end of the compression spring should use a double nut
to secure the position; do not use a nut to secure the position
on the complex shaft.