Shimano GRX RX 815 Series Dealer's Manual page 22

TO ENSURE SAFETY
• The motor unit cannot be disassembled and repaired.
• Contact SHIMANO for information regarding the shipment of the battery charger to
South Korea and Malaysia.
• Use a brake hose/outer casing which still has some length to spare even when the
handlebars are turned all the way to either side. Furthermore, check that the shifting
lever does not touch the bicycle frame when the handlebars are turned all the way to
either side.
• Use the specified cable for smooth operation.
• The clamp band, clamp bolt, and clamp nut are not compatible with other products. Do
not use them in combination with components used with other products.
„ Electric wires/Electric wire covers
• Secure the electric wires with a zip tie so that they do not interfere with the gears or
tires.
• The strength of the adhesive is fairly weak to prevent the paint on the frame from being
peeled off when removing the electric wire cover, such as when replacing the electric
wires. If the electric wire cover is peeled off, replace it with a new one. When removing
the electric wire cover, do not peel it off too vigorously. Otherwise, the paint on the
frame will peel off, too.
• Do not remove the wire holders which are attached to the built-in type electric wires
(EW-SD50-I). The wire holders prevent the electric wires from moving inside the frame.
• When installing to the bicycle, do not forcibly bend the electric wire plug. It may result in
poor contact.
„ Rear derailleur
• Be sure to adjust the top adjustment bolt and the low adjustment bolt according to the
instructions given in the adjustment section.
If these are not adjusted, the chain may become clamped between the spokes and the
largest sprocket and the wheel may lock, or the chain may slip onto the small sprocket.
• Periodically clean the derailleur and lubricate all moving parts (mechanism and pulleys).
• If gear shifting adjustments cannot be carried out, check the degree of parallelism of the
dropout.
• The guide pulley and tension pulley have an arrow on one side to indicate the direction
of rotation. When installing the pulleys, install so that the surfaces with arrows are on
the inner side when looking from the outer side of the derailleur.
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