service_manual_bb7__bb5.pdf

2012

BB7 ™ & BB5 ™

Mountain and Road

Service Manual

GEN.0000000003513

srAm LLc wArrAnty

SRAM warrants its products to be free from defects in materials or workmanship for a period of two

years after original purchase. This warranty only applies to the original owner and is not transferable.

Claims under this warranty must be made through the retailer where the bicycle or the SRAM

component was purchased. Original proof of purchase is required.

This warranty statement gives the customer speciic legal rights. The customer may also have other

rights which vary from state to state (USA), from province to province (Canada), and from country to

country elsewhere in the world.

To the extent that this warranty statement is inconsistent with the local law, this warranty shall be

deemed modiied to be consistent with such law, under such local law, certain disclaimers and

limitations of this warranty statement may apply to the customer. For example, some states in the

United States of America, as well as some governments outside of the United States (including

provinces in Canada) may:

a. Preclude the disclaimers and limitations of this warranty statement from limiting the statutory rights of

the consumer (e.g. United Kingdom).

b. Otherwise restrict the ability of a manufacturer to enforce such disclaimers or limitations.

To the extent allowed by local law, except for the obligations speciically set forth in this warranty

statement, in no event shall SRAM or its third-party suppliers be liable for direct, indirect, special,

incidental, or consequential damages.

· This warranty does not apply to products that have been incorrectly installed and/or adjusted

according to the respective SRAM technical installation manual. The SRAM installation manuals can be

found online at www.sram.com, www.rockshox.com, www.avidbike.com, www. truvativ.com, or

www.zipp.com.

· This warranty does not apply when the product has been modiied.

· This warranty does not apply when the serial number or production code has been deliberately altered,

defaced or removed.

· This warranty does not apply to damage to the product caused by a crash, impact, abuse of the product,

non-compliance with manufacturer’s speciications of usage or any other circumstances in which the

product has been subjected to forces or loads beyond its design.

· This warranty does not apply to normal wear and tear. Wear and tear parts are subject to damage as a

result of normal use, failure to service according to SRAM recommendations and/or riding or installation

in conditions or applications other than recommended.

wear and tear parts are identiied as:

Dust seals/Bushings/Air sealing o-rings/Glide rings/Rubber moving parts/Foam rings/Rear shock

mounting hardware and main seals/Stripped threads and bolts (aluminum,titanium, magnesium or steel)/

Upper tubes (stanchions)/Brake sleeves/Brake pads/Chains/Sprockets/Cassettes/Shifter and brake

cables (inner and outer)/Handlebar grips/Shifter grips/Jockey wheels/Disc brake rotors/Wheel braking

surfaces/Bottom out pads/Bearings/Bearing Races/Pawls/Transmission gears/Spokes/Free hubs/

Aero bar pads/Corrosion/Tools

· This warranty shall not cover damages caused by the use of parts of different manufacturers.

· This warranty shall not cover damages caused by the use of parts that are not compatible, suitable and/

or authorized by SRAM for use with SRAM components.

· This warranty shall not cover damages resulting from commercial (rental) use.

Avid brAke service

We recommend that you have your Avid brakes serviced by a qualified bicycle mechanic. Servicing Avid

brakes requires knowledge of brakes components as well as the special tools and fluids used for service.

This publication includes trademarks and registered trademarks of SRAM LLC designated by the symbols ™ and ®, respectively.

For exploded diagram and part number information, please refer to the Spare Parts Catalog available on our website at www.sram.com.

For order information, please contact your local SRAM distributor or dealer.

Information contained in this publication is subject to change at any time without prior notice. For the latest technical information, please visit our website at www.sram.com.

Your product‘s appearance may differ from the pictures/diagrams contained in this catalog.

Product names used in this document may be trademarks or registered trademarks of others.

tAbLe of contents

bb7 & bb5 mountAin & roAd disc brAke cALiper overhAuL .......................................................................................................................................5

CALIPeR OveRHAUL DISASSeMBLY SeRvICe InSTRUCTIOnS ................................................................................................................................................................... 5

CALIPeR OveRHAUL CLeAnInG & InSPeCTIOn InSTRUCTIOnS ............................................................................................................................................................... 7

CALIPeR OveRHAUL ASSeMBLY SeRvICe InSTRUCTIOnS.......................................................................................................................................................................... 7

bb7 & bb5 mountAin & roAd disc brAke pAd instALLAtion instructions .......................................................................................................10

disc brAke pAd And rotor bed-in procedure ................................................................................................................................................................12

sAfety first!

At SRAM, we care about YOU. Please, always wear your safety

glasses and protective gloves when servicing your Avid brakes.

Protect yourself! Wear your safety gear!

bb7 & bb5 mountAin & roAd

introduction

Avid caliper assemblies need to be serviced in order to optimize braking function. If caliper brake piston motion is ‘sticky’ or

lacks a positive and smooth return, the caliper body/brake piston o-ring may be out of place or damaged. Inspection and/or

replacement of these parts, due to any of the above situations, will be necessary to restore proper brake function.

cALiper overhAuL disAssembLy service instructions

troubLeshooting (not pictured)

The most common issue with the BB7 is that the

outboard pressure foot can become dislodged if

the outboard adjustment knob is turned too far

clockwise without the rotor in the caliper (wheel

off or caliper removed). The brake is not broken,

nor does it require disassembly to replace the

pressure foot. To replace the pressure foot, turn

the outboard adjuster knob counter-clockwise

until it stops. If the knob doesn’t stop, then the

foot screw (the end of which can be seen in the

center of the knob) has become disengaged

from the knob and possibly from the threads

inside the drive cam. In this case, remove the

knob, then using a pair of small needle-nose

pliers or a schrader valve tool, turn the the foot

screw all the way back out until it stops. now

the pressure foot can be replaced. Relocate the

pressure foot into the bore, then give it a irm

push in the center. It will click back into place.

If you removed the knob, replace it and you’re

done!

getting stArted

Remove the cable anchor bolt and plate, then

pull the cable housing and inner wire free of the

caliper. Remove the rubber cable boots.

remove the brAke pAds

Turn both adjuster knobs all the way out

(counter-clockwise), then squeeze the pad tabs

together and pull both pads and pad spring clip

straight out of the caliper.

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