Drum brake assembly pdf book

Hydraulic and mechanical drum brakes maintenance manual no. This maintenance manual describes the correct service and repair procedures for meritor hydraulic and mechanical brakes. Brake adjusters handbook bureau of automotive repair ca. The shoes are pulled away from the drum by the springs when the brakes are released. This drum brake replacement is specifically for a ford ranger pickup truck, but it applies to most other cars as. Heres a guide to the two types of passengervehicle brakes, disc and drum. Brake drum numbering system all brake drum numbers with prefix 5 indicate that the drum is made of standard iron. A thorough understanding of modern brake systems, including manual systems, power assisted systems, discdrum systems, discdisc systems and antilock. Drums free delivery possible on eligible purchases.

Acdelco 18b274 professional rear brake drum assembly. All numbers with prefix 6 indicate that the drum is made of special alloy. Refer to your owners manual for a recommended schedule. The information in this catalog is meant to capture the associated service kits, component parts and crossreference data needed to support product in the field. The four digits following one of the above prefix numbers are the chronologically assigned number to a family of drums made from the same pattern. This is not intended to be a stand alone text book on basic brake systems. An introduction to brake systems sae brake colloquium october 6th 2002 daimlerchrysler this presentation was originally created as a one hour lecture class. For ongoing updates to this parts book visit us on the web at.

Working of drum brakes drum brakes work on the same principle as the disc brakes. When it comes to driving safety, nothing is more critical than your tires and brakes. Remember that funny brake sounds, smells or performance are indicators you need to get your. Is there thus a maximum brake torque angle and how can one find it. Recommended service intervals are after the first 500 miles and then every miles. Complete guide to disc brakes and drum brakes les schwab. The caliper piston is made of heavy gauge stainless steel to help resist corrosion. Buy acdelco 18b274 professional rear brake drum assembly. Allow the solution to flow between the brake drum and the brake support or. The ultimate guide on how to replace drum brakes youtube. As the shoes in drum brakes wear, brakes required regular manual adjustment until the introduction of selfadjusting drum brakes in the 1950s. Pdf analysis of drum brake system for improvement of braking. The brake torque is a function of th e maximum normal force, which is the vector sum of the tensions t 1 and t 2, the brake drum radius d brake 2, and the coefficient of friction, which can be easily found using the law of cosines. Large drum surrounds the brake shoes and the hydraulic wheel cylinder.