Loosen the butterfly nut
Assemble the module
1). Loosen the square screws of the module.
2). Assemble the module onto the module stand.
3). Screw down.
Assemble the bass drum
（
only CSD130
）
1 take out the bass drum and bass drum stand
2). loosen the square screw of the bass drum
3). assemble the bass drum on the stand
4). Tighten the square screw.
).
Loosen the square screws
Bass drum
Bass drum stand
Square screw L=28
5). Fix the support bar to the pedal.
6). Fix the bass drum stand the hammer, and tighten the screw
