Brake Caliper
a. The caliper fixing to the upright can be carried out with bolts or with gauged stud bolts and nut; this system allows a more rigid fixing and it is recommended for all the applications on calipers with the radial fixing.
b. Mount the caliper onto the knuckle such that the arrow marked on the inner half-caliper corresponds to the forward direction of rotation of the brake disc (the disc must enter the caliper through the side corresponding to the smaller piston and exit through the other side corresponding to the larger piston).
c. The caliper must be mounted in a symmetrical position with respect to the disc center line: the difference between the dimensions “a” and “b” must be 0,6 mm MAX (see fig. 2).
d. The disc and pads protrusion must be 0,3 mm MAX (see Fig. 3 and Fig. 4).
e. Check that in no working condition the pads touch the disc fixing bell or the upright.
f. Assembly and disassembly of the pads must occur without any force; the pads radial and lateral clearance inside the caliper must be 0,2 mm MIN; with the pistons in backward position, the clearance between them and the back plate must be 0,5 mm MIN (see Fig. 5).
g. The clearance between disc outer circumference and Caliper Bridge must be 2 mm MIN, with a difference between the two sides of 0.4 mm MAX (see Fig. 6).
h. The M 10x1 bleed screws tightening must be carried out with a torque of 12 - 16 Nm. Apply thermal tape on the external halfcaliper in order to monitor operating temperature these can be supplied by BREMBO under part number R 02.5168.10/25.
Choice of tubing
a. Where it is possible, we recommend the use of steel rigid pipes, since they do not increase brake fluid displacement.
b. In case, flexible brake hoses are used, it is necessary to use the Teflon type with braided steel sheath.
c. The hoses internal diameter must be 2.5 or 3 mm; the brake fluid displacement of 1 meter of these hoses is 0.2 cm MAX (for the type having internal diameter 2.5 mm), and 0.3 cm MAX (for the type having internal diameter 3 mm) at the pressure of 70 bar; hoses with a smaller diameter restrict fluid flow, while hoses with a bigger diameter would considerably increase the brake fluid displacement of the system.
Mounting
a. Pipe fittings must be tightened to the prescribed torque.
b. The pipe fittings seal must be sealed with annealed aluminum or copper seals; these seals can be used only once.
c. Check that tubes are not squashed or pinched and that they are not subjected to high temperatures (in the vicinity of the engine, exhaust pipes, etc.)
a. Bei einem Bremssystem, das von zwei parallelen Hauptzylindern gesteuert wird, die von einer Stange betätigt werden, blasen Sie einen vorderen und einen hinteren Bremssattel ab, um beiden Hauptzylindern einen vollständigen Hub zu ermöglichen.
b. Lassen Sie den Hauptzylinder nach jeder Pedalrückgabe mindestens 2 Sekunden lang nachfüllen, bevor Sie das Pedal betätigen.
c. Wenn die Blutung abgeschlossen ist, halten Sie den Druck mindestens 10 Sekunden lang auf Druck und prüfen Sie, ob undichte Stellen vorhanden sind.
d. Füllen Sie die Reservoirs wieder auf.
a. There must not be any interference between disc and caliper.
b. The max temperature reached by the calipers must be lower than 180°C (inspection to be carried out through the thermo tapes applied on the calipers).
c. Check the working temperature of the discs, verifying the changes occurred to the thermal paints applied on the external diameter of the discs.
If the braking system performance is not considered satisfactory, it is necessary to reduce the discs ventilation. Furthermore a rapid quick cooling could increase the risk of cracks on the discs. If discs reach high temperature, it is necessary to improve the cooling. A high working temperature of the discs causes a decay of the braking power and excessively high temperatures in the brake calipers.
