StopTech ST-40 User's Manual
Contents
1. Take care to ensure that the bridge is slid straight and parallel into the caliper body opening Note The bridge is directional and should be positioned so that the air scoop opening is located in the bottom half of the caliper Once the bridge is securely in place insert the stock pad wear sensor into the inboard brake pad Insert the first bridge bolt from the outside of the caliper and start the first few threads using a 5mm Allen wrench Start the second bolt and apply pressure to the bridge using the palm of your hand or by gen tly tapping the bridge with a mallet until the bolt engages in the hole Start the first few threads using a 5mm Allen wrench Warning Do not hammer the bridge bolts into place Tap the bridge not the bolts Torque each bolt to approximately 8 10 lb ft using a 5mm Allen wrench Do not use a torque wrench as the use of anti seize compound will cause a false reading Do not over torque the bridge bolts snug is tight enough 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 18 Step 8 Attach Stainless Steel Brake Line Reinsert the rubber washers on either side of the inboard brake line bracket then remove the rubber cap from the hard line and screw the stainless steel brake line onto the hard line fit ting by hand for a few turns Use a 14mm wrench to hold the stainless line inboard fitting while using an 11mm flare wrench to2. A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 22 Rotor and Pad Bed in Contd Note Bedding in of pads should not be done in poor weather conditions nor on wet roads After completing the installation make a series of 10 stops from 60 to 5 10 MPH Atthe end of each stop immediately accelerate to 60 again for the next stop Run all stops in one cycle During the 60 to 5 10 MPH cycle of stops the exact speed is not critical Accelerate to approximately 60 then begin braking As you approach 5 10 MPH it is not necessary to watch the speedometer Keep your eyes on the road and approximate your speed at the end of each stop DO NOT COME TO A COMPLETE STOP WHILE LEAVING YOUR FOOT ON THE BRAKE PEDAL AS YOU MAY IMPRINT PAD MATERIAL ONTO THE ROTOR CAUSING A VIBRATION If racing or higher performance pads are being used add four stops from 80 to 5 10 MPH and if full race pads are being used add four stops from 100 to 5 10 MPH There are several indicators to look for while bedding in the system On the 8th or 9th stop there should be a distinct smell from the brakes Smoke may also be evident after several stops Also on the 8th or 9th stop some friction material will experience green fade This is a slight fading of the brakes The fade will stabilize but will not completely go away until the brakes have cooled After the bed in cycle is finished there will be a blue tint on the rotor with a light
3. around the entire circumference of the dust shield using a cut off wheel or sheet metal snips Warning The ABS sensor lead is located di rectly behind the dust shield Take care not to damage it when cutting or removing the shield Remove the dust shield and carefully de burr any sharp edges using a file or power die grinder Test fit the rotor and turn it to check that no remaining part of the dust shield comes into con tact with it 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 10 Step 5 Install Caliper Bracket Remove the jet nuts and washers from the caliper bracket and put them in a safe place for later use Install the caliper bracket using a 16mm wrench or socket to tighten the stock caliper mounting bolts Torque the bolts to 50 55 lb ft 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 1 Step 6 Install AeroRotor Assembly AeroRotors MUST be cleaned with soap and water prior to installation soap and warm water work best to remove all traces of rust inhibitor but brake cleaner can be used as an alternative if necessary Not cleaning the AeroRotors will damage the rotors and pads and will prevent the brakes from performing properly Install the hat and rotor assembly ensuring that the rotor is seated sguarely on the hub face If necessary clean the face of the hub using a wire brush or similar means Use the st
4. that you ll be happy with our system We proudly support our fine products For any assistance or guestions please contact our Customer Service Department at 310 325 4799 extension 105 or e mail us at support Ostoptech com HIGH PERFORMANCE BRAKE SYSTEMS
5. Installation Instructions 2000 BMW E39 M5 and 5 Series 355mm Rear Big Brake Upgrade ST 40 caliper HIGH PERFORMANCE BRAKE SYSTEMS 98 135 1471 Rev A 12 10 04 COMPONENT IDENTIFICATION AeroRotor and Hat Assemblies j High Performance Caliper Brackets Street Pads gt a b ma Calipers al j Stainless Steel Braided Lines and Hardware BMW E39 M5 and 5 Series Rear Big Brake Kit This is a representative photograph The actual components in your kit may appear slightly different 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com APPLICATION DISCLAIMER Permanent Removal of Dust Shield The dust shield must be permanently removed from both rear wheels of the vehicle to accommodate the AeroRotors This involves cutting each shield with sheet metal snips or a power cut off wheel and de burring sharp edges with a file or power die grinder These operations can be dangerous and serious injury can occur For anyone who is not competent or comfortable performing these opera tions Stop Tech firmly recommends that they seek the services of a trained professional Proper pre cautions such as safety glasses and work gloves will be reguired Note Please refer to page 10 to review the process for removing the dust shield BEFORE beginning the installation Caliper Clearance Most 17 wheels will clear the outer diameter of the caliper for a 328mm or 332m
6. air of stainless steel brake lines 2 ea rubber end caps Tools and Equipment Required Some different models or years of vehicle may use different sized fasteners Every effort has been taken to correctly identify the proper sized tool for each job Occasionally the manufacturer may use an alternate fastener Check that each tool correctly fits the fastener before loosening or tightening it The following tools and equipment will be needed 16mm wrench or socket with extension 1 2 drive suggested 14mm wrench or socket in some cases 9 16 may be required 14mm flare wrench 11mm flare wrench 11mm box wrench 1 2 socket 3 8 drive suggested 6mm Allen hex wrench 5mm Allen hex wrench Torque wrenches capable of 10 85 settings Sheet metal snips or cut off wheel and a file or die grinder Needle nose pliers Safety glasses and work gloves for the metal cutting process Small drip tray or several rags Small funnel or suitable means of filling master cylinder reservoir Anti seize compound Brake bleed bottle 1 pair of jack stands or other means of supporting vehicle Plastic or non marring mallet DOT 3 or 4 Brake Fluid Check manufacturer s recommendation for compatibility StopTech recommends flushing brake fluid every 1 2 years or more often under severe usage conditions If not done recently the installation of a brake kit is an excellent opportunity to refresh your brake fluid or to upgrade to a higher pe
7. gray film on the rotor face The blue tint indicates that the rotor has reached the proper bed in temperature and the gray film is pad material starting to transfer onto the rotor face This is normal After the first bed in cycle shown above the brakes will still not be operating at their best capacity A second or third bed in cycle is typically necessary before the brakes really start to come in A cycle is a series of stops with a cool down in between each cycle Stop Tech does not endorse speeding on public roads If going above the legal speed limit do so in a safe area away from traffic and at your own risk After the final stop of each cycle drive as much as possible without using the brakes to cool off the system Ideally the brakes should be allowed to cool to ambient temperature before using them again DO NOT COME TO A COMPLETE STOP WHEN THE SYSTEM IS HOT WHILE LEAVING YOUR FOOT ON THE BRAKE PEDAL PAD MATERIAL MAY TRANSFER ONTO THE ROTOR CAUSING A VIBRATION If you have any questions about rotor and pad bed in any aspect of your StopTech brake kit or brakes in general please contact our Customer Service Department at 310 325 4799 extension 105 or e mail us at support stoptech com 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 23 Thank you for selecting Stop Tech We realize that you had a choice when selecting a big brake upgrade for your vehicle and we know
8. ill occur caus ing an ever worsening vibration Failure to immediately address a pad deposition vibration issue may lead to permanent damage of the rotors Please read and understand the bed in procedure included in this manual If you have any questions please contact the StopTech Customer Service Department on 310 325 4799 extension 105 or you can e mail directly to support stoptech com Note StopTech is not liable for vibrations caused by extreme usage or improper bed in of pads and rotors 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 3 APPLICATION DISCLAIMER Contd Wheel Spacers Wheel spacers can provide extra clearance to the outer face of the caliper This will also space out the entire wheel widening the track width of the vehicle Fender clearances should be checked on low ered cars and longer lug studs or wheel bolts are usually reguired Note The Wheel Industry Council has issued guidelines advising that wheel spacers not be used It is the responsibility of the customer to ensure that wheel spacers are properly specified and installed Brake Noise Certain brake pad compounds make more noise than others Proper anti sgueal shim plates between the caliper pistons and backing plate of the pad help to reduce the problem Anti sgueal lubricants are also available to reduce some of the noise The reality is that performance pads are more prone to brake sgueal Note The custome
9. imately 100 140 Ib INCH After initially bleeding the system gently tap the caliper body with a non marring mallet to dis lodge any small air bubbles then re bleed the brakes After bleeding apply constant pressure to the brake pedal and check all connections including bleed screws and both ends of the brake line for leaks Warning Brake fluid will damage most painted surfaces Immediately clean spilled brake fluid from any painted surface including the caliper Though caliper paint is designed to resist harsh chemicals prolonged exposure will damage the finish 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 20 Step 10 Reinstall Wheels It is very important to check the wheel to caliper clearance before installing wheels Note Some wheels are balanced on the inside with adhesive backed lead weights If the weight is on the outboard edge behind the spokes it may interfere with the caliper If neces sary note the weight and location of the lead and place a new piece of the same weight further inboard or outboard to clear the caliper If you rotate the tires regularly check the lead weight positions on all four wheels and also on the spare if it is full sized Reinstall the wheels and torque the lug nuts to your wheel manufacturer s specifications It may be necessary to snug the bolts before lowering the vehicle and to then torque the wheel nuts when the car is on the ground Alter
10. m rotor kit Fora 355mm kit a minimum 18 wheel is typically required and for 380mm rotor kit a minimum 19 wheel is needed The more critical clearance however is the gap between the spokes of the wheel and the face of the caliper Do not assume that a larger diameter wheel will automatically clear the face of the caliper The actual metal to metal distance measured from the stock rotor face to the inside of the wheel spokes is 65 40mm for the 2000 BMW E39 5 and 5 Series rear kit Stop Tech recommends at least 2mm of additional clearance See the Wheel Fitment Drawing page on the Stop Tech website for more specific measurements at www stoptech com Note Final fitment of the wheel to the caliper is the responsibility of the customer Brake Vibration THIS IS IMPORTANT The most common cause of brake vibration is improper bed in of pads and rotors or improper pad selection for the specific driving environment Rotor run out may also cause vibration but precision manufacturing and inspection typically mean that run out is not an issue Modern production meth ods ensure that the rotor run out is within 0 002 when installed on a StopTech aluminum hat and it controls thickness variation to within 0 0003 Under the most extreme conditions any rotor may warp but uneven pad deposition is a more typical cause of vibration If the system is not properly bedded in or if street pads are run on an open track uneven pad deposits w
11. me easier to remove and in sert Remove the two bolts holding the caliper bridge in place using a 5mm Allen wrench Take care not to lose the washer that accompanies each bridge bolt Bridge Bolts Remove the caliper bridge taking note of the di rection in which it is installed and the correct location of the pad retaining wire clip 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 16 Step 7 Contd Install Caliper and Pads Install the stainless steel brake line onto the cali per using a 14mm wrench to tighten the line fitting Install the caliper onto the adapter bracket ori enting it so that the bleed screws are on the top side of the caliper ET N A Take care to ensure that the caliper is square and evenly started on both studs It may be necessary to use a mallet to gently tap the caliper into posi tion Install the jet nuts onto each stud with one 12mm washer under each nut Tighten the jet nuts to 40 lb ft of torque using a 1 2 socket Slide the brake pads into position in the caliper taking care to ensure that the friction side of each pad is facing the rotor Yes they ve been installed backward before 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 17 Step 7 Contd Install Caliper and Pads Install the bridge by sliding it into position and rocking it until one of the bolt holes lines up
12. natively an assistant may depress the brake pedal while you tighten the wheel nuts to the proper torque setting Carefully test drive the vehicle in a safe area at low speed to ensure that all components are working correctly Then follow the pad and rotor bed in procedure on the following pages 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 21 ELLIOTECH HIGH PERFORMANCE BRAKE SYSTEMS AeroRotor Installation amp Bed in Procedure READ THIS NOW FAILURE TO READ UNDERSTAND AND FOLLOW THESE PROCEDURES WILL CAUSE PERMANENT DAMAGE TO YOUR BRAKE ROTORS AND WILL KEEP THE SYSTEM FROM WORKING AT ITS FULL CAPACITY The majority of brake system problems are due to improper installation and or bed in of the rotors and pads By reading and understanding the following you will avoid the most common causes of poor brake performance and vibration FAILURE TO READ AND UNDERSTAND THIS MAY CAUSE SERIOUS PERMANENT DAMAGE TO YOUR NEW ROTORS Wash Non Plated AeroRotors with SOAP AND WATER before installation StopTech coats non plated AeroRotors with a water soluble environmentally friendly rust inhibitor that MUST be cleaned off before use A non plated rotor looks like bare metal while plated rotors are bright silver in color and do not need to be washed Even though you may not see a change in the rotor color if the rotor is not rusty the rust inhibitor is there Use soap and water NOT BRAKE CLEANER to
13. ne connection to the chassis is dirty clean it using brake cleaner or an appro priate cleaning agent Loosen the hard line fitting from the stock brake line using an 11mm flare wrench on the hard line fitting while using a 14mm line wrench to hold the stock brake line fitting Remove the hard line fitting and place one of the rubber caps over the end of it to control fluid loss during the installation Note Retain the rubber washers which are located on either side of the hard line bracket taking care to note their orientations and to keep them properly identified so that they can be reinstalled correctly later 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 8 Step 3 Remove Stock Caliper amp Rotor Carefully remove the stock pad wear sensor from the caliper and place it out of the way tempo rarily so that it will not be damaged Note Take care to ensure that the metal clip which is located around the outside of the pad wear sensor does not come loose and get lost Remove the rotor retaining screw using a 6mm Allen wrench and retain the screw for later use Then pull off the stock rotor Note Some M5 versions have two rotor re taining screws If the rotor retaining screw will not come loose use an impact driver or seek the help of a quali fied technician Do not strip the screw head Note It may be necessary to strike the outer edge of the rotor with a n
14. ock rotor retaining screw to secure the rotor in place and tighten it using a 6mm Allen wrench Even though the rotors may look clean the rust inhibitor is in place and it must be removed Not cleaning the rotors will severely impact the performance of your new brake system Warning Do not skip this step Scrubbing the AeroRotor using a ScotchBrite pad soap and water Note Take care to ensure that the rotor assembly is on the correct side of the car as reversing the rotors will severely decrease the cooling capacity of the system The rotors are clearly marked L and R with orange tags on the rotor hats If the tags are not legible the vanes inside the rotor should lean toward the rear of the car on the top side of the rotor see the following pages for more detailed images 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 12 Left Side Rotor O E a Enn a iiin 1 a a 3 G a gi gt al E A Outboard Side Driver s Left Outboard Side Driver s Right 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 13 RIGHT SIDE SHOWN 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 14 Caliper Component Identification Pad retaining Clip Bolt in Bridge 0 E E Ee a v ae Cross Over Tube B
15. on marring mallet if corrosion prevents the rotor from simply being pulled off If so place a wheel bolt in one of the holes first to prevent the rotor from falling when it comes loose 3541 Unit A Lomita Boulevard Torrance CA 90505 Remove the two stock caliper bolts using a 16mm socket which is fitted with an extension Note Factory installed caliper bolts may be very tight Ensure that you have a good pur chase on the head of the bolt and that you are in a good position to turn the wrench or socket Remove the caliper with the stock brake line at tached There may be some leakage from the open end of the brake line especially if the pads pis tons on the caliper are retracted 310 325 4799 www stoptech com 9 Step 4 Remove Dust Shield The dust shield must be permanently removed from both rear wheels of the vehicle to accommodate the AeroRotors This involves cutting each shield with sheet metal snips or a power cut off wheel and de burring sharp edges with a file or power die grinder Warning These operations can be dangerous and injury can occur For anyone who is not competent or comfortable performing these operations Stop Tech recommends that they seek the services ofa trained professional Safety glasses and work gloves should always be worn during metal cutting operations Use a marking pen to trace a cutting route around the lip ofthe dust shield where the caliper bracket mounts Cut
16. r is responsible for any sgueal related problems due to pad selection Caliper Hat and Bracket Finish Disclaimer Many wheel cleaning solutions contain strong acids that may damage the finish on any caliper or aluminum anodized finish especially the plating on the hardware Check for adverse effects by trying a small amount of the cleaner in guestion on an inconspicuous area Avoid over spraying and rinse cleaning solutions off as guickly as possible StopTech is not liable for damage to calipers hats or bracket finishes due to corrosive chemical exposure All trademarks are properties of their respective owners StopTech LLC is neither associated nor affiliated with nor sponsored by BMW 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 4 Important Notices Wheel Fitment Do not assume that your wheels will fit An outline drawing of your StopTech Big Brake kit is available on our website at www stoptech com Measure the distance from the outer face of your stock caliper to the inner face of your wheel spokes or make a template according to the instruc tions on the website to determine if a wheel spacer is necessary DO THIS BEFORE YOU IN STALL YOUR KIT Cleaning of Rotors The AeroRotors supplied with this kit are coated with a water soluble environmentally friendly rust inhibitor This coating MUST BE WASHED OFF WITH SOAP AND WATER before installation Brake cleaner is not as effective as soap and wa
17. rformance fluid such as Motul 600 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 6 Step 1 Raise Vehicle and Remove Wheels Note All photographs show a right hand side installation unless otherwise noted A level stable and clean surface suitable for sup porting the vehicle on jack stands should be used for the installation Warning Never leave any vehicle supported with only a jack Always use jack stands Break loose the lug nuts on both rear wheels be fore jacking up the car Fora rear kit installa tion block the front wheels and release the park ing brake Refer to the Owner s Manual to identify the cor rect location of the jack for raising the vehicle Jack up the vehicle and secure it on a pair of jack stands again referring to the Owner s Manual for jack location joints After securing the vehicle at a convenient height remove the rear wheels 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 7 Step 2 Disconnect Stock Brake Line Warning Brake fluid will damage most painted surfaces Immediately clean spilled brake fluid from any painted surface Also be sure that the cap is securely installed on the master cylinder If the cap is loose or removed it is likely that more fluid will drip during brake installation Place a drip tray or several rags directly below the inboard brake line connection If the area around the brake li
18. ridge Bolts Bleed Screw Use a light film of anti seize compound on the bridge bolt shafts and threads The ST 40 original eguipment caliper uses a pad that is common to two piston opposed calipers The Friction Materials Standards Institute FMSI number for the pad backing plate is D372 For further pad interchange information please see the FAO section of the StopTech website at www stoptech com 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 15 Step 7 Install Caliper and Pads Note The images in this section may not be of the vehicle noted but they give a proper representation of the correct installation Determine the left and right hand side calipers They are clearly marked on the box but as a check the bleed screws are always positioned at the top of the caliper If installing a four wheel kit with ST 40 calipers on the front and rear of the vehicle be sure that the correct caliper is on each corner The calipers with the smaller piston sizes go on the rear of the vehicle In order to stiffen the caliper the bridge must have a snug fit and the bolts may be tight when removing them Keep turning the bolts gently with pressure applied in the direction of removal After removing the bolts it may be necessary to tap the bridge out from the inside of the caliper using a mallet or similar tool the handle of a tool works well for this With use the bridge and bolts will beco
19. ter Even if it doesn t look as if anything is coming off the rotor the rust inhibitor is there and must be entirely cleaned Rotors will quickly rust without protection so if the rotor is not rusty it s still coated After cleaning you may see the rotor start to develop a slight rust color This is normal and indicates that all of the rust inhibitor has been removed Rotor and Pad Bed in Proper rotor and pad bed in is essential to the performance of your new brake system Failure to properly bed in the brakes will seriously impact how well they work and how long they will last The number one cause of brake vibration is uneven pad material deposition on the rotor Proper bed in will greatly minimize such problems Follow as closely as possible the bed in procedure detailed later in this manual or refer to the StopTech website at www stoptech com for further information Safety Notice Improper handling of a vehicle especially while raised and supported by jack stands ramps or other mechanical means can cause serious bodily injury or even death It is strongly recommended that a trained experienced mechanic with proper equipment install the Big Brake Kit supplied by StopTech LLC StopTech LLC assumes no liability expressed or implied for the improper installation or use of this product or its components Liability No Warranty Automobile racing and performance driving whether sanctioned or not on or off the road are dan gero
20. tighten the hard line fitting Check to ensure that the brake line is not bind ing in any way nor interfering with any suspen sion component If necessary loosen the in board end of the line and slightly re clock the fitting 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 19 Step 9 Bleed Brakes Complete the installation on both sides of the vehicle before bleeding the system Warning Double check that the stainless steel brake lines you ve just installed are not binding in any way nor interfering with any suspension component including the CV boot and the axle drive shaft Adjust each line if necessary by loosening the inboard end of the line and slightly re clocking the fitting Note The calipers and lines will need to fill with fluid quickly draining the master cylinder reservoir Keep a close watch on the fluid level when initially bleeding the system Do not allow the master cylinder reservoir to run dry and to draw in air Doing so may result in the brake system needing to be serviced by a certified brake technician Bleed the brake system using an 11mm box wrench to loosen the bleed screws The sequence for bleeding the brakes should be 1 Right outboard bleed screw 2 Right inboard bleed screw 3 Left outboard bleed screw 4 Left inboard bleed screw Though a torque wrench is typically not used on bleed screws as a reference the torque for bleed screws should be approx
21. us Products used in such environments applications are subject to stresses and conditions out side of normal use wear and tear All equipment sold or provided by StopTech LLC is sold WITH OUT WARRANTY EXPRESSED OR IMPLIED No warranty or representation is made to the product s ability to protect the user from injury or death The user assumes all risk StopTech LLC is NOT responsible for any damage consequential or otherwise for equipment failure or mal perfor mance after installation Under no circumstances is StopTech liable for labor charges or loss of use Contact StopTech If you have any questions about wheel fitment rotor cleaning or bed in of a particular pad type please call StopTech s Customer Service Department on 310 325 4799 extension 105 or you can e mail directly to support stoptech com 3541 Unit A Lomita Boulevard Torrance CA 90505 310 325 4799 www stoptech com 5 BMW E39 M5 and 5 Series Rear Axle Kit Note It is important to read and understand this ENTIRE installation manual including the break in procedures before starting the installation Kit Contents Your StopTech Big Brake kit includes the following 1 pair of ST 40 four piston calipers sized specifically for your vehicle 1 set of high performance street pads not suitable for track use 1 pair of 355 X 32mm two piece rotor assemblies 1 pair of aluminum caliper adapter brackets 4 ea 7 16 20 self locking jet nuts 4 ea 12mm washers 1 p
22. wash the rotors A small piece of Scotchbrite works well for scrubbing When cleaned and rinsed properly the surface of the rotor may show a light rust color which is normal Bed in your new pads and rotors by carefully ob serving the procedure described on this and the following page Bed in of rotors and pads is critical to the optimum performance of your new brakes When bedding in new parts you are not only heat cycling the pads you are also depositing a layer of pad material onto the rotor face If not bedded in properly an uneven layer of pad material will be deposited onto the rotor causing vibration Virtually every instance of a warped rotor is attributed to uneven pad deposition Note Plated rotors must be driven with gentle braking until the CAD plating is worn off of the rotor faces BEFORE starting the bed in procedure Do not use brakes aggressively until the plating is worn off typically after several miles of driving Typically a heavy braking street driver will experience approximately 1 to 1 1G s of deceleration At this rate the ABS will be activated on such equipped vehicles A moderate braking effort is needed to properly bed in rotors and pads If ABS intervention or lock up were represented as 100 brake effort a stopping force of approximately 70 80 just short of ABS intervention or lock up is a general estimate of the pedal effort you are trying to achieve Continued on next page 3541 Unit
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