Tech Tip: Brake Burnishing Procedures for New Brake Pads or Shoes

Tech Tip: Brake Burnishing Procedures for New Brake Pads or Shoes

After every brake job the technician should first confirm that he has a good brake pedal by gently stroking the pedal to move the wheel cylinders and caliper pistons back out to the normal position. After confirming a good pedal, the follow burnish procedure should be used during the test drive ....

At Bendix, we highly recommend that new pads and shoes be broken in properly.

After every brake job the technician should first confirm that he has a good brake pedal by gently stroking the pedal to move the wheel cylinders and caliper pistons back out to the normal position. After confirming a good pedal, the follow burnish procedure should be used during the test drive:

30/30/30 Burnish Procedure

• Perform 30 stops from 30 miles per hour with a 30-second cooling interval between stops. These stops will be performed at a decelerating rate of 12 feet per second or less. This means that it should be a gentle easy stop.

• The 30/30/30 Burnish Procedure beds the pads and shoes into the rotor and drums. It also deposits the necessary friction transfer to the rotors and drums for optimum brake performance.

• Following this procedure also assures that your customer will have excellent brake performance from the first time he or she drives the car after brake service has been performed. You should not depend on your customer to break in the brake job. The only way to assure that it is done correctly is to incorporate it into your brake job test drive.

Remember, proper burnishing assures a long lasting, high performing, noise free brake job!

Courtesy of Bendix by Honeywell.

For more information and brake tips, visit www.bendixbrakes.com.

You May Also Like

Today’s Fuel Pressure Diagnostics

Direct injection pressure is measured with sensors, and the signals are used to determine pump speed and/or volume.

Ever since the fuel pump was moved to the fuel tank, fuel pressure replaced the float height as a measure of fuel system health and performance. Checking the height of the float might have required some disassembly or special tools to bend the arms of the float.

When the shift was made to port or throttle body fuel injection, all a technician needed to diagnose a fuel problem was a set of “noid lights,” a fuel pressure gauge and maybe a multi-meter. Measuring the fuel pressure typically required checking the pressure at idle and under load. Most of the these tools can’t be used on the high pressure side of a direct-injection system because of higher pressures and changes in the injector location and technology. 

BMW Diagnostics: Low Airflow After Cabin Filter Replacement

Models:  F97 X3 M  F98 X4 M G01 X3 G02 X4 G20 3-Series SITUATION After replacing the microfilter during a previous service, the customer notices that the ventilation system airflow rate is noticeably less. This leads to perceived lower cooling power. The customer may also notice that external odors enter the vehicle. Related Articles –

Volvo Modular Engine Service

The Volvo Modular Series engine outlasted Ford and was retired by Geely. The Volvo modular design that can have four, five or six cylinders made its debut in 1990 in the 960 sedan as a six-cylinder and never stopped improving. Related Articles – Audi Active Suspension Service – How To Service BMW Tire Monitor Systems

BMW Dual Clutch Transmissions

BMW uses a wet clutch with separate inboard and outboard sections for the two sub-transmission.

BMW Cooling System Problems

Let’s take a closer look at this unique water pump, how to replace it efficiently and what other components should be replaced along with it.

Other Posts

ADAS Calibration Tips

Here are 10 tips to follow during ADAS Calibration.

ASE Education Foundation, Goodguys Continue Partnership

Goodguys is one of many industry relationships the foundation has developed to help solve the technician shortage.

Valvoline Celebrates Female Service Center Employees

As women make up more than half of all drivers in the United States, Valvoline is taking steps to increase their vehicle care confidence.

ADAS Calibration Aborts

Knowing the common “hiccups” can save you time and money.