Silent, Superior Stopping Power - Repco · PDF fileSilent, Superior Stopping Power Premium...
Transcript of Silent, Superior Stopping Power - Repco · PDF fileSilent, Superior Stopping Power Premium...
FOR ALL YOUR BRAKING NEEDS
Silent, SuperiorStopping Power
Premium tier brake Pad
90% Car Parc Coverage92% Repco Demand Coverage
92%Repco DemanD
coveRage
90% Car Parc Coverage92% Repco Demand Coverage
90%caR paRc coveRage
Revolutionary One-Piece Brake PadsRepco ThermoQuiet (TQ) Brake Pads have a revolutionary one-piece brake pad design with an unique IMITM Sound InsulatorTM developed and patented by the world leader in brake friction, Federal-Mogul.
This revolutionary one-piece brake pad incorporates the friction material, the backing plate and the insulator into a single, high strength component. This enables the heat and vibration to be spread over a larger area resulting in quiet performance and longer pad life.
OEM Quality at a Better Price
ThermoQuiet Benefits• Shim integrated with friction
as one-piece design – No shim movement
eliminates rattling, vibration and noise
Ü Quieter braking
• Friction material emits light grey dust Ü Visibly
no dust
• Globally developed ceramic friction material Ü
Superior stopping power
• One-piece brake pad spreads heat over a greater surface Ü Enhanced
durability
FOR ALL YOUR BRAKING NEEDS
IMITM Sound InsulatorTM spreads out and absorbs heat and energy over a greater surface area for longer brake pad life and quiet performance
Friction material is post-cured to facilitate break in
Superior friction formulations engineered to pass O.E. manufacturer-developed stopping test
Disc Brake service
FOR ALL YOUR BRAKING NEEDS
Brake Caliper PreparationTo ensure correct caliper and pad movement and to maximise brake performance, the cleaning and lubrication of the caliper slides and mounting points must form part of every brake service.
Failure to remove rust, and the omission of suitable lubricant on caliper slides, pins and boots, can lead to brake noise, irregular wear characteristics, and longer stopping distances.
Use a wire brush to remove rust from caliper brackets and guides (wet-down to minimise dust)
Thoroughly clean and inspect, and/or replace mounting hardware
Lubricate Metal-to-Metal contact surfaces (eg. Brackets, guides, pad edges, etc) with a Molybdenum Disulfide lube (use Moly-Lube or PBR Caliper Guide Pin Grease – P/No CG50G)
Lubricate Rubber-to-Metal contact surfaces (eg. guide pins, boots, etc) with Rubber or Silicon (use Moly-Lube or PBR Rubber Grease – P/No RG17 or RG500G)
Rotor PreparationRotor surface preparation and cleaning is critical to overall braking performance, and the correct surface-finish is important in reducing or eliminating brake noise. The smoother the rotor surface the better the rotor performs.
Most new rotors require no additional machining prior to installation however, when re-using existing brake rotors, prior to machining measure the rotor to ensure that after machining, the rotors will comply with the minimum dimensional specifications for the vehicle.
Final preparation following machining on most on-car or in-shop lathes will require a secondary procedure to break off the “peaks” produced by these machines. Block sanding with 120 grit emery cloth, followed by 150 grit emery cloth will ensure a suitable rotor surface. If not performed, the “peaks” break off during initial brake applications and end up trapped in the “valleys”. Over time, the particles migrate into the friction pads and contribute to vibration and noise issues. Additionally, conditioning the rotor with grit paper will lessen the occurrence of grooving. Grooves prevent contact of the full rotor surface with the disc pad and result in overheating and hardening at the rotor “high” points, contributing to vibration and noise.
Rust Jacking – No Pad Movement
Pad Rust Buildup
Lubed Guide Pins
Pad Guide Rust/Corrosion
Cleaned Caliper Bracket Properly Lubed Guides
Note: DO NOT lubricate
or apply any
compounds to the
backing plate of the
Friction Pads
Technical
Tips
FOR ALL YOUR BRAKING NEEDS FOR ALL YOUR BRAKING NEEDS
Brake Lathes
Better results are achieved using the newly designed but more expensive “round” bits – rather than the traditional “triangular” design.
Older lathes should be inspected for bearing wear – worn bearings cause the rotor to rotate untruly. Adaptors should also be inspected for damage and machined true to prevent run-out.
Cleaning the Rotor:
Proper cleaning of re-surfaced rotors is one of the most overlooked areas.
The proper way to clean a resurfaced rotor is to use soap and hot water and a stiff scrubbing brush. This will clean most of the particles out of the “valleys”.
Wheel Bearings and Road Wheels:
Finally, check for proper wheel bearing adjustment and road wheel nut torque.
Brake System Bedding-In (or Burnish) ProcedureAn effective bedding or burnish cycle to correctly “bed-in” the friction surfaces can require 100’s of stops. The following burnish procedure is based on a method recommended by the Society of Automotive Engineers (SAE) and should be used for brake system conditioning, notably when installing new materials
NOTE : Brake Cleaner spray often does not
clean fragments from the “valleys”. Try the two
methods (brake cleaner spray vs. soap/water)
using a “white paper towel” after each cleaning
method. You’ll observe that the soap and water
method is the most effective – just like with
engine cylinder bores.
NOTE: It is critical
to allow at least 60 seconds between
stops to ensure sufficient cooling and
avoid damage to the
friction material and/
or rotor.
Conduct 20-30 stops from approx 50 kph to 5 kph with moderate pedal pressure (deceleration to be 0.4G to 0.5G)
After each stop, slowly accelerate up to 50 kph and maintain for 600m (or 35 seconds) before conducting the next stop – this distance/time allows the heat to dissipate from the brake system
Using the above procedure, the friction materials will conform to the surface of the rotors for improved stopping performance. In addition, the thermal conditioning of the friction materials will increase the stability of braking effectiveness over a greater range of temperatures, and promote a significantly longer service life.
NOTE: Specific vehicle manufacturer recommendations should also be taken into consideration
NOTE : NO PANIC STOPS (greater than 0.6G) – which inputs too much heat
NO DRIVING WITH FOOT ON-BRAKE – which inputs too much heat
To ensure quiet braking and promote a longer service life:
Inspect rotor for lateral run-out, parallelism and minimum thickness. Compare to the manufacturers specification
Replace or Machine Rotor if outside manufacturer’s specification
Ensure the brake lathe is in good operating condition and tool bits are sharp – after machining, conduct rotor surface conditioning with 120 grit emery cloth and mild pressure for 60 seconds on each side. Repeat with 150 grit
Wash all rotors with soap and hot water using a stiff scrubbing brush
Use a wire brush to remove rust from caliper brackets, guides and slides (wet with water to reduce dust)
Clean or replace attaching hardware, slides and clips
Lubricate “metal to metal” friction points (brackets to guides, guides to pads) with a Molybdenum Disulfide lube (use Moly-Lube or PBR Caliper Guide Pin Grease – P/No CG50G)
Lubricate “metal-to-rubber” friction points (guide pins to boots) with Rubber or Silicon lube (use Moly-Lube or PBR Rubber Grease – P/No RG17 or RG500G)
For those Friction Pads with loose shims, lubricate the piston to shim contact surface. DO NOT apply lubricant or adhesives directly to the backing plates of Friction Pads
diSc brake check LiSt