Yamaha TP-3123EA Owner's Manual - Page 9

5 Loosen all over-tightened bolts according to the procedure described in step 3 (*2). When the pitch is approximately the same at each bolt, repeatedly depress the toe and heel of the pedal several times. 6 Repeat steps 3 through 5 until the pitch at each bolt is exactly the same. 7 Check the sound by striking the head as de- scribed in step 2. • Sound is lower than the tuning note → Tune the instrument by tightening all tuning bolts by an equal amount (max. 1/16 of a turn). • Sound is higher than the tuning note → Tune the instrument by loosening all tuning bolts by an equal amount (max. 1/16 of a turn) according to the procedure described in step 3. 8 Operate the pedal as described in step 5. If the pitch does not change, the instrument is tuned properly. (If the pitch changes, repeat from step 7.) The instrument is now tuned to the lowest sound (note) of its tonal range. Depress the toe of the pedal to change to a higher pitch (note). 9 After tuning, perform ■ Pedal Adjustment and then ■ Tuning Indicator Adjustment. Adjusting the Pitch ■ Pedal Adjustment After depressing the toe and heel of the pedal, turn the spring tension adjustment bolt as described below. Spring Tension Adjustment Bolt • Heel moves up when releasing the foot from the pedal after depressing the heel, or the heel feels heavier than the toe. → 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 → Turn the spring tension adjustment bolt to the right (clockwise). Use the supplied spring adjustment wrench to turn the spring adjustment bolt. Do not turn too many full rotations at once, and re-check the adjustment every 2 turns by pressing the toe and heel of the pedal. Caution Never place your fingers or foot into the moving parts or the space under the pedal or base. Serious injury can result if fingers or feet become pinched. Note Do not loosen the spring tension adjustment bolt by more than 3 rotations at a time, as the toe of the pedal tends to drop abruptly after a specific point. ● Pedal balance spring mechanism Your Yamaha timpani is equipped with a unique pedal balance spring mechanism (a coil spring counteracting the tension of the head) which allows you to freely change the pitch (note) of the instrument. When the pedal is moved, the pitch of the head will change, and the balance spring ensures that the pedal angle (pitch) will not change when you remove your foot from the pedal. 9