Avid Technology BBDB, Service Manual

Page 1: ...B BA AL LL L B BE EA AR RI IN NG G D DI IS SC C B BR RA AK KE E S SE ER RV VI IC CE E G GU UI ID DE E...

Page 2: ...al Boot Cable Housing Ferrule Spring Adjuster Screw Inboard Adjuster Knob Cable Anchor Plate Cable Anchor Bolt Fixed Cam Ball Bearings Drive Cam Foot Screw Outboard Pressure Foot Inboard Pressure Foot...

Page 3: ...TABLE OF CONTENTS SECTION I Introduction page 2 3 SECTION II Disassembly page 4 8 SECTION III Cleaning Inspection page 9 10 SECTION IV Assembly page 11 21 1...

Page 4: ...drive cam In this case remove the knob then use some small needle nosed pliers or a Schrader valve tool to turn the foot screw all the way back out until it stops Once this is accomplished the pressur...

Page 5: ...we have since changed the design The new clip works exactly the same way but has nothing sticking out of the caliper Old design with loops New design without loops Torque Specs Recommended Grease Use...

Page 6: ...OUTBOARD KNOB A Turn the outboard pad knob counter clockwise until it stops then back in clockwise 3 full turns to recess the footscrew in the knob NOTE Turning the outboard knob more than 3 full tur...

Page 7: ...ves turn the footscrew clockwise until it is secure NOTE If you need to fabricate a pad spacer be sure to use cardboard or something similar that will not damage the surface of the friction material T...

Page 8: ...e washer E TYPE F Tip the bike to allow the spring adjuster plate and lockring retainer to fall into your hand D TYPE N Remove the torque arm spring adjuster outer body seal and spring together then r...

Page 9: ...om the caliper STEP 8 REMOVE INBOARD ADJUSTER KNOB Using a small flat blade screwdriver remove the inboard adjuster knob STEP 5 FREE LOCKRING Using the Avid MDT 1 Lockring Tool and a 3 8 drive ratchet...

Page 10: ...he split with an x acto knife or other small sharp tool and carefully remove it STEP 11 CAM DISASSEMBLY A Lift the fixed cam off of the drive cam being careful not to lose the 3 ball bearings B Use sm...

Page 11: ...ean the cable seal boots outer caliper body seal and inner body seal in mild soap and water Rinse and dry all parts completely STEP 2 CALIPER BODY INSPECTION Inspect the caliper body for any damage pa...

Page 12: ...the cam ramps check the threads of the drive cam foot screw lockring inner pressure foot cable anchor bolt and torque arm fixing nut for damage check the spring for any signs of damage on TYPE F calip...

Page 13: ...y bore including the lockring threads the inner pressure foot threads and the inner knob detents STEP 3 INSTALL INNER PRESSURE FOOT Drop the inner pressure foot in through the main body bore then thre...

Page 14: ...spacer into the caliper and turn the inboard adjuster knob clockwise to lock into place STEP 7 GREASE CAM PARTS Grease very lightly the following parts in preparation for assembly footscrew threads ti...

Page 15: ...CAMS Place the ball bearings into the ramps of the drive cam then install the fixed cam over the shaft of the drive cam Rotate the cams against each other to ensure the ball bearings are seated prope...

Page 16: ...pushed past the inner body seal and then pulled back the edge of the inner body seal rolls back If this occurs the seal must be replaced B Align the tab on the fixed cam to the corresponding groove in...

Page 17: ...b on the retainer with the cut out in the fixed cam STEP 15 TYPE F ONLY INSTALL SPRING ADJUSTER PLATE Install the spring adjuster plate rotating it to the lowest spring tension setting This position w...

Page 18: ...high strength thread lock such as Loctite 272 to the drive cam threads Be careful not to allow any thread lock to enter the area around the footscrew STEP 19 INSTALL SPRING TYPE F Install the spring...

Page 19: ...lat washer detent washer and torque arm fixing nut for installation If they are ready to go they will be much easier to install while holding the spring loaded torque arm in place After the torque arm...

Page 20: ...nstall the torque arm aligning the spring adjuster tab and screw with the relieved area on the back of the torque arm When engaged correctly the spring adjuster screw will be driven against the shelf...

Page 21: ...inst the torque arm STEP 25 INSTALL DETENT WASHER Place the detent washer over the drive cam shaft and against the flat washer with the rounded edge up STEP 26 INSTALL TORQUE ARM FIXING NUT Thread on...

Page 22: ...crew with the rectangular hole in the knob then pressing it on firmly STEP 28 INSTALL CABLE SEALS TYPE F Push the upper cable seal on to the cable ferrule and place it into the cable stop Push the low...

Page 23: ...e cable anchor bolt grease the bolt lightly and install into the torque arm STEP 30 REMOVE PAD SPACER Turn both pad adjuster knobs completely counter clockwise and remove the pad spacer STEP 31 SET UP...