User manual SHIMANO BR-7900 MOUNTING

[. . . ] Because each bicycle may handle differently, be sure to learn the proper braking technique (including brake lever pressure and bicycle control characteristics) for your bicycle. Consult your bicycle dealer and the bicycle's owners manual, and practice your riding and braking technique. · If the front brake is applied too strongly, the wheel may lock and the bicycle may fall forward, and serious injury may result. [. . . ] · Be careful not to allow any oil or grease to get onto the brake shoes. If any oil or grease do get on the shoes, you should replace the shoes, otherwise the brakes may not work correctly. · Check the brake cable for rust and fraying, and replace the cable immediately if any such problems are found. · Always make sure that the front and rear brakes are working correctly before you ride the bicycle. · The required braking distance will be longer during wet weather. To avoid this, reduce your speed and apply the brakes early and gently. · Read these Technical Service Instructions carefully, and keep them in a safe place for later reference. Tape Toe-in 0. 5 mm Installation of the brake lever 1. Installation to the handlebar Move the bracket cover forward, and then securely tightening the mounting nut with a 5 mm Allen key. Bracket cover Then wrap the handlebar with handlebar tape. Note: The BR-7900 allows the angle of contact between the shoe and the rim (toe-in) to be adjusted. Adjusting the toe-in makes it possible to obtain smoother braking operation. Depress about 10 times Note: Cut the cable at the length at which it is not pulled tight when the handlebar is turned all the way to the left and right. 7. Arch spring tension adjustment You can use the spring adjustment bolt to adjust the spring tension of the arch. 2 mm Allen key 3. Lever stroke adjustment Hollow Remove the name plate, and then use a flat-tipped screwdriver to turn the reach adjustment bolt to adjust the lever stroke. Check the braking operation when adjusting. Weak 1 mm or more Shoe fixing bolt Strong 5 mm Allen key Reach adjustment bolt 4 mm Allen key Spring adjustment bolt Tightening torque: 5 ­ 7 N·m {43 ­ 61 in. lbs. } The correct way for clamp washer (B) to face is so that the small hollow on the surface is in the top-left corner. Replacement of the cartridge shoe Tightening torque: 6 ­ 8 N·m {52 ­ 69 in. Cable connection Set the quick release lever to the closed position; then adjust the shoe clearance (as shown in the illustration below) and secure the cable. Cable bolt tightening torque: 6 ­ 8 N·m {52 ­ 69 in. Remove the fixing bolt. 2 mm Allen key Fixing bolt 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. 2. Installation of the brake cable Loosen the screw and remove the name plate. 4. Install the name plate. Tightening torque: 0. 15 - 0. 2 N·m {1. 3 - 1. 8 in. Centering of the brake shoe Make a minor adjustment by using the centering adjustment bolt. holder. Shoe Installation of the brake 1. [. . . ] · For any questions regarding methods of handling or maintenance, please contact the place of purchase. Outer casing Quick release lever A + B = 3 -- 4 mm FORWARD FORWARD Cable hook 1 2 Inner cable drum The usual position during installation is when the head of the centering adjustment bolt is as shown in the illustration. Shoe insertion direction 5. Readjustment of the shoe clearance Turn the cable adjustment nut to readjust the shoe clearance. Fixing bolt R R55C2 2 1 4. Tighten the fixing bolt. Cable adjustment nut 3 Inner cable drum Cable hook Outer casing 4 Tightening torque: 1 ­ 1. 5 N·m {9 ­ 13 in. [. . . ]