FAQ for Brake Disc Repair
Q: How many bolts does the brake caliper bracket have?
A:
The brake caliper bracket has a total of 2 bolts.
By BobGM Specialist
01/11/2022 Q: What information needs to be documented on the Repair Order?
A:
Any claim that is submitted using the labor operations in this bulletin, must have the Original Rotor Thickness and Refinish Rotor Thickness (if refinished) documented on the repair order. For more information, refer to the °Repair Order Required Documentation° section of this bulletin.
By BobGM Specialist
01/11/2022 Q: What is the removal procedure for the Rear Brake Rotor (JH7)?
A:
The procedure is to release the parking brake, raise the vehicle, remove the tire and wheel assembly, remove the hub and rotor assembly, mark the relationship of the hub to the rotor, place the hub and rotor assembly on a hydraulic press, press the wheel studs out of the hub and rotor assembly and separate the hub from the rotor.
By BobGM Specialist
01/11/2022 Q: Is it okay to leave the caliper/pads installed while cutting rotors using an on-car lathe?
A:
On-car lathes should never be used with the pads and calipers installed on the vehicle. The debris from cutting the rotors can contaminate the brake pads/calipers which can lead to other brake concerns and comebacks.
By BobGM Specialist
01/11/2022 Q: How do you install the Rear Brake Rotor (JH7)?
A:
You can align the hub and the rotor, install each of the new wheel studs into the hub and rotor assembly, install the hub and rotor assembly to the vehicle, install the tire and wheel assembly and lower the vehicle.
By BobGM Specialist
01/11/2022 Q: What is the recommended torque when you tighten the brake caliper bracket bolts?
A:
You can tighten the bolts to 300 Nm (221 lb-ft).
By BobGM Specialist
01/11/2022 Q: What tools can be used to clean any rust or corrosion from the mating surface of the hub/axe flange?
A:
You can use the J 42450 - A Wheel Hub Resurfacing Kit.
By BobGM Specialist
01/11/2022 Q: What tools can be used to clean any rust or corrosion from the mating surface of the brake rotor?
A:
You can use the J 41013 Rotor Resurfacing Kit.
By BobGM Specialist
01/11/2022 Q: What should you do before replacing the Front Brake Rotor (JD9, JF3, JF7)?
A:
You should raise and support the vehicle and remove the tire and wheel assembly.
By BobGM Specialist
01/11/2022 Q: Which lathe is essential for performing brake work, the bench or the on-car?
A:
Dealers must have a well-maintained bench lathe and a well-maintained on-car lathe. These lathes need to be calibrated monthly. BOTH lathes are essential to providing quality brake service.
By BobGM Specialist
01/11/2022 See more FAQs (5)