The Bendix Brake Training School, one of the industry’s longest-running training programs, has educated more than 250,000 students since its founding more than 50 years ago. The Bendix On-Line Brake School at provides access to the company’s knowledge database and technical resources on all aspects of electronics and air brake maintenance and product education. The brake has been standard equipment on the steer axle of all Peterbilt Motors Company Class 8 tractors since 2011, and on Kenworth tractors since 2013.īendix provides commercial fleets, technicians, and drivers with the tools they need to ensure safe operation through assessment, maintenance, and repair. The Bendix ® ADB22X ™ air disc brake is available through all six major truck original equipment manufacturers, including Peterbilt ®, Kenworth, Daimler Trucks North America (DTNA), Mack, Volvo, and International ®. Replace the cap that covers the shear adapter, and the pad replacement is complete. With the 10 mm socket wrench or ratcheting box wrench, turn the shear adapter clockwise to adjust the tappets until the new pads make enough contact with the rotor to stop it from free-wheeling, then back it off – counterclockwise – three clicks. Once the new friction is installed, replace the pad retaining bar and fasten it in place with the pin, washer, and clip. In addition to the new pads, Bendix brake pad replacement kits include pad springs, pad retaining bars, and retaining bar pins, clips, and washers. They will go in only one way: with the friction facing the rotor and the pad springs at the top. When the inspection and any component replacements are complete, make sure the tappets are fully backed off so they are flush, and slide the new brake pads down into position. Note that slide pin lubrication is not required: Air disc brakes are lubricated for life and do not need grease fittings or oil spray as long as the components remain uncontaminated. Inspect the guide pin boots: Push the caliper all the way inboard to open up the boots and check them for damage and contamination.Using the shear adapter, extend the tappets and inspect the tappet boots to make sure they are not damaged or contaminated with dirt, which can cause them to bind.Compare that with the thickness of new pads to see just how much usage you get out of air disc brake friction.īefore installing the new pads, take some time for a preventive maintenance inspection: Take a quick look at the pads: The minimum friction thickness is about 2 mm – roughly the thickness of a nickel. The two brake pads can now be lifted out from either side of the rotor. Push down on the retaining bar, pull out the pin, and remove the pad retaining bar. A retaining bar across the top of the brake pads holds them in place: Use a small pair of pliers to remove the spring clip from the pin fastening the retaining bar, then remove the washer from the pin as well. Once the shear adapter is fully backed off, the brake pads can be freed for removal.
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