Yamaha TP-4300R series Руководство пользователя - Страница 12
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Pedal Adjustment
Make sure the timpani is properly tuned before making adjustment to the spring or PAC.
n Pedal Balance Adjustment
After depressing the toe and heel of the pedal, turn
the spring tension adjustment bolt as described
below.
• Heel moves up when releasing the foot from
the pedal after depressing the heel, or the
heel feels heavier than the toe.
g Turn the spring tension adjustment bolt to the
left (counterclockwise).
• Toe moves up when releasing the foot from
the pedal after depressing the toe, or the toe
feels heavier than the heel.
g Turn the spring tension adjustment bolt to the
right (clockwise).
Use the supplied timpani tuning key to turn the
spring tension adjustment bolt. Do not turn too
many full rotations at once, and re-check the ad-
justment every 2 turns by pressing the toe and
heel of the pedal.
Caution
Never place your fingers or feet into the
spaces underneath the pedal, the base por-
tion of the instrument, or between moving
parts such as the casters. Serious injury can
result if fingers or feet become pinched.
Note
Do not loosen the spring tension adjust-
ment bolt by more than 3 rotations at a
time, as the toe of the pedal tends to drop
abruptly after a specific point.
Spring Tension
Adjustment Bolt
Timpani Tuning Key
n Pedal Adjustment Clutch
(TP-8300R/7300R series only)
The pedal mechanism of this instr ument is
equipped with the PAC (Pedal Adjustment Clutch)
system. This Yamaha original mechanism lets you
adjust pedal torque (pedal weight) while maintain-
ing pedal balance.
[PAC Adjustment]
1
Turn the lock nut located below the PAC adjust-
ment knob counter-clockwise (left) to release
the lock.
PAC Adjustment Knob
Lock
Lock Nut
Lock release
2
To give the pedal a heavier feel turn the PAC
adjustment knob clockwise. To return a heavy
setting to a lighter feel, turn the PAC adjust-
ment knob counter-clockwise.
* Please make adjustments with one hand.
Never attempt turning the adjuster with
both hands or with tools (doing so will
damage the PAC system).
3
After completing adjustment, engage the lock
by turning the lock nut clockwise.
PAC Handling Precautions
l Even with the PAC system adjusted to its
heaviest setting, the pedal is not "locked"
in place so do not use a heavy setting to
prevent the pedal from jumping when re-
moving the head.
l There is a limit to how far the PAC adjust-
ment knob can be turned clockwise. Do not
force the knob if it becomes difficult to turn.
Doing so may damage the mechanism.
Return a heavy setting
to a lighter feel
Pedal Movement
Heavier
23