Documentation of a disc brake repair

Documentation of a disc brake repair

Mintex Serviceline

Your hotline to the producer! Our telephone number +49 (0)2171 703 2397 is the way to get the answer to your questions regarding product and technology on workdays.

Mintex Serviceline

Your hotline to the producer! Our telephone number +49 (0)2171 703 2397 is the way to get the answer to your questions regarding product and technology on workdays.

Basic requirement for every repair

Clean all components and then lubricate the necessary points in the area of the pad / liner guide shafts, as well as the contact points of the brake shoes with a non-conductive, high temperature-resistant, solids-free (metal-free) paste suitable for ABS vehicles (Mintex Cera Tec).

Do not use copper paste!

All worn and damaged components are to be replaced in strict accordance to vehicle, system and brake manufacturers’ guidelines.

Following of the instructions helps to avoid technical problems and complaints.

1. Start of brake repair

Visually check the brake disc and/or pads for sign of reaching their wear limit. Before starting the brake repair, all relevant components in the area of the axle and the hydraulic system must be checked.

It is important to replace any defective parts.

2. Remove rust from the contact surfaces and hub

After dismantling the old brake discs, remove rust from the contact surface and the hub edge using appropriate tools (e.g., a wire brush, Emery paper, etc).

Attention: Do not damage the wheel hub!

The caliper, which is still connected to the hydraulic system, must be fastened so that no tensile load is exerted on the brake hose.

3. Cleaning the contact surface and hub

Use a brake cleaner to clean the bright metal contact surface.

We recommend checking the cleaned hub with an appropriate measuring gauge (measuring dial with stand) for possible lateral run-out deviations).

4. Remove rust from the guide shafts of the caliper bracket

Depending on the design, remove rust and residues from the guide shafts of the dismantled caliper bracket using a wire brush and/or caliper file.

Attention: Do not damage the caliper bracket!

Visually check the bracket for damage.

5. Greasing the guide surfaces of the caliper bracket

Grease the cleaned guide surfaces of the
caliper bracket with a non-conductive, heat-resistant and solids- free (non-metallic) agent.

Do not use copper paste!

It is important to replace any defective parts.

6. Fitting the brake disc

Fit the new brake disc on the wheel hub and – depending on the type and system – fasten with the retaining screws. We recommend measuring the newly fitted brake discs for lateral run-out approx.15 mm below the maximum radius using a dial gauge. Ideally, this measurement is performed with a properly mounted wheel.

7. Moving back the brake piston

The brake piston must always be moved back using appropriate adjusting tools in order to prevent the piston jamming or twisting. In doing so, attention is to be paid to the different versions of the caliper and/or the brake system, as well as to the manufacturer-specific requirements and special tools.

8. Greasing the contact points

Where damping lacquer coatings or damping shims are fitted metal free anti-squeal lubricant is not required. Only use the metal free anti-squeal lubricant (Mintex Cera Tec) in the area of contact of the pad on the guide shafts. Lubrication is only vital in the area of the contact points of the pad and on the guide shafts. The torque settings and specifications/guidelines of the vehicle and system manufacturers are to be observed in all steps of the repair process.

Important!

Please pay attention to the instruction leaflet in the Mintex disc brake pad packages. This contains information on special installation regulations, such as

  • directional disc brake pads
  • coloured markings on the backing plate and their meaning
  • warnings regarding work on the electrohydraulic brake system
  • disc brake pads with removable foil on the backing plate for glued attachment, etc.

Attention! In the case of vehicles with an electrohydraulic brake (e.g., SBC-Sensotronic Brake Control). Never change the pad / lining and brake fluid at the same time! Work on the electronic brake system is only to be performed by trained personnel.

Please note! The instructions of the vehicle and brake system manufacturers regarding repair and maintenance must always be observed.