
24
Pedal
1 Topreventthepedalfromsuddenlydropping
duetospringtension,holdtheheelendofthe
pedalallthewaydownandplaceablockof
woodbetweenthepedalandthebase.
2Loosen the tension rods on opposite sides of
thetimpaniandremovethehead.Werecom-
mend that you mark the pedal side of the hoop
withapieceoftape,etc.sothatthehoopcan
be reattached to the same position.
* Avoid touching the tension rod threads,
as they are greased.
3 Removethehoopandheadtogether.
* Do not let the hoop come in contact with
the bearing edge, etc.
Hoop
Tape
4 Edgetapeisappliedtothebearingedge.The
tapeprovidesasmoothedge,whichisveryim-
portanttotheoperationofthetimpani.Topre-
vent damagetothetape,pleaseremove any
dust or dirt.
* If the tape is peeling or badly damaged,
it must be replaced with “Timpani Teflon
Tape”.
5 Placethenewheadwiththehooponthebowl.
WhenusingaYamahatimpanihead,make
sureitsYAMAHAlogo isonthe sideopposite
the pedal.
Thehoopmustbere-mountedinthesame
positionasmarkedwithapieceoftapeinstep
2.Intheproperorder,tightenthetensionrods
alternately by hand until the head is tensioned
slightly.At this time,makesurethatthe head
andhooparecenteredonthebowl.
Tighteneachtensionrodanadditional1/4of
aturnusingthetimpanikey.Repeatatleast4
times.
6 Adjustthetimpaniasdescribedonpage18
“Initial Preparation”startingwith step2. For
precisetuning,refertothesection“Adjusting
the Pitch”onpage20.
Interval for head replacement
When the head is slightly tensioned and
its surface looks wavy or shows dents, it is
time to replace the head with a new one.
The maximum head life normally is ap-
proximately 2 years and depends on the
frequencyandduration ofuse.However,
the head should always be replaced before
thesoundqualitydeterioratesdramatically.
If a head is left on and used more than two
years, the following problems may occur:
• Itmaybecomedifficulttotunethehead
to the proper pitch range.
• It maybecomedifficult to balancethe
pedal.
• The main unit mechanisms themselves
may become damaged.
Yamaha recommends replacing the head
every year.
Replacing the Head
BlockofWood,etc.
Never touch the pedal assembly when
loosening the tension rods (when loos-
ening the head).Also, never place your
fingers or feet in the space under the
pedal, around the base, or the moving
parts. Spring tension may cause the
pedal to suddenly move posing a great
danger.
Caution
02_timpani_2015_E.indd 24 2015/11/20 9:12:01