PCCB Removing and installing front brake pads
WM 463420 -PCCB Removing and installing front brake pads
Information on PCCB brake pads
Since the production launch, Pagid-P40-2 brake pads with brake piston damping plates have been fitted on the front axle for PCCB brakes.
Damping plates in brake pistons
With the introduction of modified brake pads - Pagid P40 -3- the brake piston damping plates are no longer used.
Brake piston damping plates no longer used
Preliminary work
Remove wheel.
Removing front brake pads - PCCB brakes
The core of the warning contact wire must not be left exposed. Worn insulation is not important.
If necessary, remove a little brake fluid from the reservoir by suction in order to prevent an overflow when the disc brake pads are pushed back!
1. Remove fastening screw at the retaining pin. Then screw the M8 auxiliary screw into the retaining pin. Hold down the expanding spring with a screwdriver and remove retaining pin.
2. Remove warning contact wire at the brake caliper and expanding spring. Remove warning contacts from the disc brake pads.
3. Brake piston resetting fixture 9472 (for 6 piston brake caliper) must be positioned on the brake caliper between the disc brake pads. Then press the pads back evenly -Direction arrows-.
4. Remove disc brake pads.
Removing brake pad
Installing front brake pads - PCCB brakes
Warning
Installation of brake pads with the wrong brake pad quality
Longer braking distance
More wear on brake pads
-> Only use the Porsche type-specific brake pads.
-> Replace the brake pads when the brake pad wear indicator light comes on, but no later than when there is a residual pad thickness of 2 mm on each axle.
-> Replace the brake discs on each axle upon reaching the wear limits.
Warning
Old mounting parts fitted on the brake caliper
Reduced braking effect
Risk of damage to the brake caliper
-> Fit new expanding spring, new retaining pin and securing clip on the brake caliper.
Make sure the retaining pin is inserted at the correct position. The side levelling surfaces prevent the retaining pin from twisting in the brake caliper.
Do not grease the back of the disc brake pad. Check disc brakes for wear.
The core of the warning contact wire must not be left exposed. Worn insulation is not important.
Use a new repair kit.
1. Before installing the brake pads, check the amount of wear on the brake discs.
2. If necessary, push the brake pistons back into their original position using the brake piston resetting fixture 9472 (for 6 piston brake caliper).
Brake piston resetting fixture
3. Fit new disc brake pads.
3.1 If you are using Pagid P40-2 brake pads, insert new damping plates into the pistons.
The protective film on the damping plates must be removed before installation. When fitting the damping plates on the small pistons, position the cut out on the damping plate at the brake pad guide pins to prevent the damping plate from becoming deformed.
Damping plates in brake pistons
3.2 Do not fit brake piston damping plates if you are using the modified brake pads (Pagid P40-3)!
Brake piston damping plates no longer used
4. Install expanding spring. Center the retaining pin in the bore using the M8 auxiliary screw. To do this, push the retaining pin back with the auxiliary screw and then push the retaining pin through. Remove auxiliary screw and tighten new fastening screw at the retaining pin to 30 Nm (22 ftlb.).
5. Fit warning contact wire on the disc brake pads, expanding spring and brake caliper -arrows-.
6. Position disc brake pads by operating the brake several times.
7. Check the brake fluid level and correct it if necessary. The brake fluid level must be between the MIN/MAX marking.
Brake fluid level
Bedding in the brake pads
New brake pads require a slightly longer bedding in period for PCCB brake discs than cast iron brake discs.
In general, the following applies: New brake pads must be worn in (bedding in period), their optimum braking effect is not reached until after a few hundred kilometers. The slightly reduced braking effect must be compensated for by increased pressure on the brake pedal. The same also applies after changing brake discs.
Subsequent work
Fit wheel.