Yamaha TP-3123 Owner's Manual - Page 7

5 Using the supplied timpani key, tighten the tun- ing bolts by 1/4 of a turn (90°) in the order shown below. It is very important to always turn all tuning bolts by the same amount. Timpani key 29", 32" 23", 26" 6 Take your foot off the pedal. • Heel still moves up → Repeat steps 4 through 6. • Heel stays down → Go to step 7. 7 Put your foot on the pedal and fully depress it in either direction (toe and heel). • Heel feels heavier than toe → Go to step 8. • Toe and heel feel equal → Go to step 11. • Heel feels lighter than toe (*1) → Head is too tight and should be loosened. Keeping the heel of the pedal depressed, loosen the first tuning bolt by 1/2 turn and then re-tighten it by 1/4 of a turn. Perform this operation for all other tuning bolts in the order shown in step 5. If necessary, repeat this procedure, until proper tension is obtained. 8 Fully depress the heel of the pedal as shown in Fig. C. Initial Preparation 9 Tighten each tuning bolt by 1/8 of a turn (45°) in the order shown in step 5. 10 • Toe and heel feel equal → Go to step 11. • Heel still feels heavier than toe → Repeat steps 8 through 10. • Heel feels lighter than toe → Head is tightened too much. Loosen the head as described in step 7 (*1). 11 Move the pedal into an intermediate position, as shown in Fig. D , and remover your foot from the pedal. Confirm that the pedal stays in this position and does not move. If the pedal stops in this position, adjustment is complete. Return the pedal to the position shown in Fig. C. • If the toe of the pedal moves downward → Repeat steps 8 through 10. • If the heel of the pedal moves downward → Head is tightened too much. Loosen the head as described in step 7. 12 Strike the head lightly with the supplied mallet. The standard striking point is shown below. Striking point The standard striking point lies at distance B from the kettle edge, which corresponds approximately to 1/4 to 1/3 of the distance between the kettle edge and the center of the head. For pitch reference, a tuner or piano can be used. As the toe of the pedal is pressed down, the pitch is raised. For details on precise tuning refer to "Adjusting the Pitch" on the following page. Note As the head will stretch over time, readjustment should be performed periodically (starting with step 7 ). 7