Yamaha TP-5000 Owner's Manual - Page 9

Other Features I Pedal Adjustment Clutch Using the PAC, you can adjust the rotational torque of the pedal to a comfortable pedal force without degrading the smooth pedal action. In addition, the PAC is useful in preventing undesirable happenings such as slight movement of the pedal when the head is struck strongly causing a small change in pitch. G PAC Adjustment Use the timpani key to turn the PAC adjustment bolt as follows: Turn the PAC adjustment bolt to the right (clockwise) to tighten the pedal movement. To return the tightened pedal movement to the initial rotational torque setting, turn the PAC adjustment bolt to the left (counterclockwise). * Be sure to turn the timpani key using one hand only. * Do not use both hands or an additional tool. The TP-50xx (H/G) / TP-70xx (H) series use a wing bolt on the PAC adjustment system. PAC adjustment bolt The PAC (Pedal Adjustment Clutch) is an original Yamaha mechanism that enables you to adjust the pedal's rotational torque (the force required to move the pedal) by altering the amount of friction within the pedal balance spring mechanism. Note on PAC Usage • The pedal cannot be locked with the PAC, even at its tightest position. (Do not try to use the PAC for locking the pedal, for example to prevent the toe of the pedal from jumping up when the head is removed.) • The PAC adjustment bolt has limit positions in both turning directions. If the bolt is hard to turn, do not force to overtighten it because this may cause damage to the mechanism. 9