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1、2012 BB7 pay close attention to all threaded surfaces. smALL pArt inspection 17. Check ball bearing and cam ramps for excessive wear. note: it is normAL to see bALL trAcks in the cAm rAmps.18. Check the threads of the drive cam, foot screw, inner pressure foot, cable anchor bolt, and torque arm fixi
2、ng nut for damage. 19. Check the spring for any signs of damage. 20. Check the cable seal boots for nicks, tears, or cracking. 20222118191716cALiper overhAuL cLeAning & inspection instructionscALiper overhAuL AssembLy service instructionsAssembLe cALiper 21. very lightly grease the inner pressure fo
3、ot threads. 22. Using a T25 TORX, thread the inner pressure foot into the outboard caliper body half until the pressure foot is flush with the inner face of the caliper body. 23. very lightly grease the foot screw threads, tip of stem-end on outer pressure foot, and the ramps of the drive cam. 24. U
4、sing small needle-nose pliers or a Schrader valve tool, thread the foot screw into the drive cam completely, but do not tighten. 2423greAsegreAsegreAse8cALiper overhAuL AssembLy service instructionsAssembLe cALiper (cont) 25. Insert the stem-end of the outer pressure foot into the hole in the end of
5、 the drive cam and install by firmly pressing it straight in. 26. Lightly grease the ramps of the fixed cam in the outboard caliper body. 27. Place the ball bearings into the ramps of the fixed cam. 28. Insert the Drive Cam/Outer Pressure Foot assembly through the hole in the outboard caliper body.
6、Rotate the cams against each other to ensure the ball bearings are seated properly in both sets of ramps. 29. Apply a high-strength thread-lock such as Loctite 272 to the drive cam threads. importAnt: be cArefuL not to ALLow Any threAd- Lock to enter the AreA Around the foot screw. 30. Hold the Driv
7、e Cam in place and re-install the return spring, outer seal, and washer with hex- shaped hole. note: the spring Leg thAt extends AwAy from the spring shouLd point AwAy from the cALiper body. the notch in the outer seAL shouLd fAce AwAy from the cALiper body And be LocAted underneAth the spring Leg.
8、31. Install the torque arm, aligning the spring leg with the spring tension notch on the back of the torque arm. When engaged correctly, the spring adjuster screw will be driven against the spring leg on the back of the torque arm. Press the torque arm onto the flats of the drive cam shaft. Make sur
9、e the arm is fully seated and hold firmly with your thumb. 32. Place the lockwasher on the drive cam with the rounded side toward the caliper body. Thread on the torque arm fixing nut by hand, then torque to 55-60in-lb. importAnt: do not over tighten the torque Arm fixing nut. 33. Install the outboa
10、rd adjuster knob by aligning the rectangle tab of the foot screw with the rectangular hole in the the knob, then press it on firmly. 34. Re-install the pad retainer in the outboard caliper body. 35. Apply a high-strength thread-lock such as Loctite 272 to the 2 caliper bolts. 36. Align both caliper
11、halves together and insert the caliper body bolts. The short bolt goes in the hole near the cable anchor, and the long bolt goes in the hole near the housing stop. Torque both bolts to 75-90 in-lb. note: be cArefuL to keep the pAd retAiner in pLAce whiLe joining the hALves together. 25272630292831sp
12、ring tension notchextended Legnotch spring tension notch32333435pAd retAiner369cALiper overhAuL AssembLy service instructions403837instALL the new pAds And spring. 37. Assemble the spring between the new left and right pads. Align the spring to the pad as shown. Squeeze the brake pad and spring clip
13、 assembly together then press firmly into the caliper until it “clicks” into place. The pad marked “R” goes on the spoke side of the brake. 38. Push the upper and lower boots onto the integrated cable stop. 39. Place the cable anchor plate on the cable anchor bolt, grease the bolt lightly and instal
14、l into the torque arm. (not pictured) 40. Re-mount the caliper onto the bike. 41. Set up the brake by following the procedures in the Avid Ball Bearing Disc Brake Installation Guidelines. Be sure to torque to the proper pLeting bALL beAring disc brAke cALiper overhAuLYou are almost ready to ride, bu
15、t first its a good idea to test your brakes by pulling on the lever extremely hard (as hard as you can imagine yourself pulling the lever while youre riding) several times. Check that the caliper closes and returns properly. Make one last check of all the bolts and fittings. If everything checks out
16、, you Are reAdy to ride!10bb7 & bb5 mountAin & roAd introduction Avid brake pads should be replaced when the total thickness of the backing plate and pad friction material is less than 3mm. Replacing worn brake pads will improve braking performance. new brake pads are subject to a “bed-in” period. It may take anywhere from 20 to 40 complete stops to break in Avid pads. You may begin t
