Yamaha 836C Drums User Manual

Thank you for purchasing the YAMAHA Concert Bass Drum.
Please read this Owner’s Manual throughly before use.
0612 R0 Printed in Japan
Do not place the stand on uneven surfaces. The stand may be-
come unstable and/or overturn, and result in possible injury.
Do not lean on, or ride upon the instrument stand. The stand
may move and cause a fall resulting in injury.
Do not rough play, etc. in the vicinity of the stand. Bodily
harm may result by falling onto the stand. Rough play may
also result in the instrument being overturned. Also, keep
children from playing in the vicinity of the stand.
Strong earthquakes may cause the stand to move about or
overturn. Stay away from the stands during earthquakes.
Use the stand’s casters to move the instrument on flat, even
surfaces only. (Lock the casters when the instrument is
not to be moved.)
1. In order to keep the bass drum from rotating on its axis,
firmly secure the bass drum in a vertical position in the
2. On inclined, rough, or gravel surfaces the instrument may
overturn and/or become uncontrollable.
3. Do not run while moving the instrument. The stand may
become uncontrollable and crash into other objects re-
sulting in injury.
Due to this instruments heavy weight, two or more persons
are necessary in the assembly of the stand.
Do not touch the moving parts. Fingers and hands can get
caught in the moving parts.
Do not use the stand in the rain. If the stand becomes wet,
use a soft dry cloth to wipe the stand as soon as possible.
Always use a soft, dry cloth to clean the stand as a part of
periodic maintenance. Never use thinner, benzene, or other
similar solvents to clean the stand.
If the instrument is frequently moved, the bolts will become
loose over time. Check bolts regularly and firmly tighten any
loose bolts found.
<Regarding the Use of Calf Heads>
As changes in temperature and humidity have a great effect on the tension of calf heads,
please pay attention to the following points.
If possible, tune the head just before playing.
As tension generally lowers when humidity is high, slightly over tune the head.
The head may become warped if the head is loosened when the drum is not in use, so
please make sure head tension is maintained even when the drum is not used.
When mounting (replacing) new calf heads on the drum, first wipe the area of the calf head
that comes in contact with the shell edge using a slightly damp cloth, then mount the head
and tighten the tuning rods equally. Tune the head after it has dried. This procedure im-
proves contact between the calf head and the drum shell.
As long as the tension is not needlessly raised or lowered, the calf head should maintain in
good condition for a long period of time.