GENERAL INFORMATION
9.5
which can lead to early brake fade and the possibility of serious injury.
DUAL HYDRAULIC CALIPER
BLEEDING
Ill. 1
Left Hand Brake
Bleed Screw
Right Hand
Brake Bleed
Screw
DH CALIPER CUTAWAY VIEW
Piston
Dust Seal
Square Ring Piston Seals
Right Hand
Brake Line
Left Hand
Brake Line
This caliper is a stepped piston design, with two
independent
hydraulicsystems contained in the same
caliper body (see Ill.1). The caliper piston is
T-shaped, which allows both left and right hand brake
to use the same caliper piston, but remain separated
by seals. The left hand brake system applies
hydraulic pressure to both front calipers and only the
outer diameter of the rear caliper piston. The right
hand brake applies pressure to the inner portion of the
rear caliper piston. Because the left and right hand
brake hydraulic systems are separate, there are also
two bleed screws -- one for the outer fluid chamber
(left hand brake), and one for the inner fluid chamber
(right hand brake). The basic procedure for bleeding
the brake system is the same as outlined on Page 9.7
- 9.8; however, each system must be bled separately.
B
Inner Bleed Screw
Right Hand Brake
Outer Bleed Screw
Left Hand Brake
A
-- Upper most (outer) bleed screw and brake line (A) is
for the left hand brake system.
-- Lower (inner) bleed screw and brake line (B) is for the
right hand brake system.
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