PPTF Newsletter 4_Aspire

IMPORTANCE OF CHANGING FULL SET DISCS AND PADS In some instances brake discs are sold in packs of one, but it is important for customers to change brake discs in pairs. This ensures the customer’s car remains as safe as possible on the road.

Always recommend replacing brakes to customers in pairs because:

■ Due to the difference in thickness, one sides caliper piston will be far more extended than the other. Overextending the piston can cause contamination build-up to the stretched seal ■ Replacing only one brake disc is clearly a safety concern. Should the vehicle be involved in an accident this could lead to criminal charges for the repairer.

■ An imbalance can be created as the brake discs will have a difference in wear – the difference in thickness might cause the brakes to pull ■ A thinner brake disc will have decreased capability of dissipating heat, hence lower resistance against cracking of the disc or vapour bubbles in the brake fluid

DON’T FORGET TO CHANGE

WHY CHANGE BRAKE PAD FITTING KITS? Old parts increase the risk of: ■ Brake noise (brake pads and bolts rattle) ■ Uneven and disproportionate load on the brake disc ■ Uneven braking can affect the brake efficiency of the brakes ■ Significantly reduced spring force.

WHY CHANGE BRAKE SHOE FITTING KITS? Old parts increase the risk of: ■ Brake noise (the brake shoes rattle) ■ Uneven and disproportionate load on the brake shoes cause risk of damaging the drum ■ Can affect the brake efficiency of the brakes ■ Lost spring tension and pull effect.

It’s recommended you change the parts when changing brake pads. This is to ensure an even braking ability function and efficiency of the brakes.

It is therefore recommended you change the parts when changing brake shoes. This is to ensure an even braking ability function and efficiency of the brakes. Within 1–2 years the spring tension is reduced by at least 30%.

Within 1–2 years the spring tension is reduced by at least 50%.

Spring tension Before change

Spring tension After change

Spring tension Before change

Spring tension After change

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