User manual SHIMANO SI-8E80A TECHNICAL INSTRUCTIONS

[. . . ] If the protruding length is any longer, the end of the inner cable may become stuck in the rotor, which could cause the wheel to lock and the bicycle could fall forward causing serious injuries. · The calipers and rotor will become hot when the brakes are operated, so do not touch them while riding or immediately after dismounting from the bicycle, otherwise you may get burned. Check that the brake Less than 20mm components have cooled down sufficiently before attempting to adjust the brakes. · Always make sure that the front and rear brakes are working correctly before you ride the bicycle. [. . . ] · If the front brake is applied too strongly, the wheel may lock and the bicycle may fall forward, and serious injury may result. · The R505 disc brakes are designed for optimum performance when used in combination with the BR-R505 (calipers), BL-R770/ST-6600 (brake lever), SM-RT61, SM-RT62 (rotor) and Shimano pad unit (M06). Use 2. 5 finger levers for canti brakes such as the BL-R770 or STI levers such as the ST-6600 for road bikes as the brake levers. If used in combination with V-BRAKE brake levers, it will not be possible to obtain sufficient braking force. If using in combination with 4-finger levers such as the BL-T400/ST-T400, the braking force will be higher. Accordingly, under some conditions such as certain riding positions or overall weight, the bicycle may fall over and injury may result if proper care is not taken. · Obtain and read the service instructions carefully prior to installing the parts. Loose, worn or damaged parts may cause the bicycle to fall over and serious injury may occur as a result. · Read these Technical Service Instructions carefully, and keep them in a safe place for later reference. Installation Wheel spoke lacing Check that the spokes have been laced as shown in the illustration. Lace the spokes as shown in Figure 1 below for the left side of the front wheel (the side where the rotor is installed), and the left and right sides of the rear wheel, and as shown in Figure 2 below for the right side of the front wheel. Rotating direction of wheel Front left Rear left Rear right Front right Installing the calipers 1. Loosen the caliper fixing bolts, and then install the calipers to the frame so that the calipers work at the left and right. Caliper clamp bolt Secure the three bolts with a cap as shown in the illustration in order to prevent the bolts from coming loose. For post type < Front > < Rear > Caps Caps Caliper fixing bolts 2. While wearing protective gloves, apply pressure to the adapter in the counterclockwise direction while tightening the caliper clamp bolt. Fig. 2 Caliper clamp bolt Adjusting when the pads are worn Use a 3 mm Allen key to tighten the pad adjustment screw on the calipers so that clearances (A) and (B) are both 0. 2 ­ 0. 4 mm. Pad adjusting screw Installation of the rotor <SM-RT61> Install the rotor and the rotor tightening plate to the hub, and then install and tighten the bolts as shown in Fig. 1 Tightening plate Rotor B A While wearing gloves, apply a force to the rotor to turn it in a clockwise direction as shown in Fig. While doing this, tighten the rotor fixing bolts in the order shown in the illustration. Use a flat-tipped screwdriver or similar tool to bend the edges of the tightening plate over the heads of the bolts as shown in Fig. 2 Hub Rotor fixing bolts (#T25 torx) Adapter Tightening torque: 6 - 8 N·m {53 - 69 in. lbs. } (0. 2 ­ 0. 4 mm) B A (0. 2 ­ 0. 4 mm) Tightening torque: 2 - 4 N·m {18 - 35 in. 3 Tightening plate Replacing the brake pads If the brake pads are worn down to a thickness of 0. 5 mm, replace the brake pads. Cable adjusting bolt Pass the inner cable through the cable adjusting bolt, and then tighten the cable fixing bolt. Tightening torque: 6 - 8 N·m {53 - 69 in. [. . . ] After checking that the brake pad and the rotor are not touching each other, check that there are no problems when the brake lever is depressed. This service instruction explains how to use and maintain the Shimano bicycle parts which have been used on your new bicycle. For any questions regarding your bicycle or other matters which are not related to Shimano parts, please contact the place of purchase or the bicycle manufacturer. Disc Brake System (For road bikes) In order to realize the best performance, we recommend that the following combination be used. Caliper Brake Lever Rotor Brake pad unit (Metal Pads) Brake cable BR-R505 BL-R770 / ST-6600 / ST-5600 SM-RT61, SM-RT62 M06 <BL-R770> Depress about 10 times <ST-6600 / ST-5600> 5 mm Allen key installation nut Depress about 10 times 7. Turn the cable adjusting bolt to take up any slack in the When installing the components to carbon frame/handle bar surfaces, verify with the manufacturer of the carbon frame/parts for their recommendation on tightening torque in order to prevent over tightening that can cause damage to the carbon material and/or under tightening that can cause lack of fixing strength for the components. [. . . ]