Yamaha RD-500 YX-500FT RD-500 Owners Manual - Page 3

Caution Disregard of cautions with this mark or misuse may result in personal injury or the loss of personal property. Handling Only use genuine Yamaha clamps. Never use clamps that do not properly fit on the rack pipe, etc. when making attachments. Doing so can cause the rack to overturn or instruments to fall off resulting in serious injury. Never loosen the slide guide fixing bolt when the xylophone is not mounted on the rack. Never loosen the slide guide fixing bolts when the xylophone is not mounted on the rack or when the legs are not attached to the rack (except for when removing the gas spring). Doing so is extremely dangerous because the rack frame (see page 11) can rise suddenly causing an accident or injury. Limits to attaching optional instruments The total weight of optional instruments must not exceed 18kg. Attaching more weight can result in the entire rack overturning, becoming damaged, or the optional instruments falling off or becoming damaged. This is extremely dangerous. Do not touch cracked tone bars. Cracked tone bars have sharp edges that can cut hands. Please change cracked tone bars as soon as possible. Do not use the mallets for any other purpose than playing the instrument. Misuse of the mallets may result in unexpected injury or accidents. Be careful not to pinch your fingers or hands when assembling. Doing so may cause injury due to pinched fingers, etc. When assembling legs, reinforcement stays, and resonator pipes, use two persons taking special care to double-check each other as the assembly proceeds. Always make sure that the wing bolts and wing nuts are firmly tightened to prevent parts from becoming loose during performance. Using the instrument with loose bolts and nuts can cause trouble during performance such as unexpected movement, etc., or parts falling off during transport resulting in injury. Refer to the instructions when assembling the rack. Height adjustment should always be performed with at least two persons. Make sure that all procedures described in the manual are followed when assembling the rack and attaching or removing the xylophone. Disobeying the procedures can result in parts falling off from the rack during assembly, which can be dangerous. Also, height adjustment should always be performed by at least two persons. If it is absolutely necessary to adjust height by one person, do not make adjustments of more than two notches on the slide guides at a time (see page 13). Precautions Regarding the Gas Spring Please observe the following instructions for proper handling of the gas spring. * Refer to page 13 for gas spring removal. Caution Disregard of cautions with this mark or misuse may result in personal injury or the loss of personal property. Handling Never lubricate the moving parts on the gas spring. Lubricating the gas spring will reduce the durability of the seal and cause oil leakage. Do not expose to impacts. Doing so will cause oil leakage, malfunction, or damage. Never dismantle. High-pressure gas is sealed inside of the gas spring, so any attempt to disassemble it is extremely dangerous. Do not bend. The rod is susceptible to bending from directional loads. A poorly balanced load placed on the rod can result in bending and malfunction. Do not hit. Hitting the piston rod or cylinder can shorten the life of the seal or result in malfunction. Do not expose the instrument to excessively high or low temperatures. Doing so can cause malfunction. Use the instrument only in temperatures ranging from -20ºC to 50ºC. Do not expose the instrument to rain, moisture or dust. Doing so can cause malfunction. Do not use excessive force to lift the side frame, which can pull the gas spring out of the leg. Doing so can cause malfunction or damage the instrument. Do not apply a high tensile load on the gas spring. Doing so can cause malfunction or damage the instrument. Disregarding any caution with this Danger! mark can place you in imminent danger resulting in death or serious injury. Cautions when discarding the gas spring Pressurized nitrogen gas is sealed inside of the gas spring. Be sure to release the gas before discarding the gas spring, or an explosion can occur, causing injury. [Cautions] • Do not push. • Do not cut the gas spring. • Do not throw the gas spring into a fire. • Do not make a hole anywhere in the gas spring other than in the specified positions (q and w in the figure below). [Discarding procedure] 1. Put the gas spring in a plastic bag. Using a drill of 2 to 3 mm, make a hole q from outside of the plastic bag at the position as specified in the figure to release the gas and oil and then make a hole w at the position as specified. (Be sure to make holes in the order of q and w.) 2. If a vinyl bag is not used, the oil and drill chips will spread. (In such a case, wear eye protection glasses. ) 15mm q Drill w 35mm Plastic bag ● In the event of a failure, stop using the instrument and contact the






shop where you purchased it. If your dealer is unable to assist you, please contact Yamaha directly as per enclosure. * Drill two holes, as shown above, to release the gas before discarding the gas spring. 9