Dual Hydraulic Brake Caliper (Dh Caliper); Dual Hydraulic Caliper Bleeding - Polaris Trail Blazer Service Manual

Hide thumbs Also See for Trail Blazer:

Table of Contents

Dual Hydraulic Brake Caliper (DH Caliper)

This caliper is a dual opposed piston design, with two independent hydraulic systems contained in the same cali-

per body (see Ill.1). The caliper pistons are T-shaped, which allows both hand and foot brake to use the same

caliper piston, but remain separated by seals. The hand brake system applies hydraulic pressure to both front

calipers and only the outer diameter of the rear caliper pistons. The auxiliary (foot) brake applies pressure to the

inner portion of the rear caliper pistons. Because the hand and foot brake hydraulic systems are separate, there

are also two bleed screws -- one for the outer fluid chamber (hand brake), and one for the inner fluid chamber

(foot brake). The basic procedure for bleeding the brake system is the same as outlined on page 9.8 - 9.9; howev-

er, each system must be bled separately.

Hydraulic Auxiliary Brake inspection and adjustment is outlined on page 9.7.

DH CALIPER TOP VIEW

NOTE: Caliper style and location of brake lines and bleeder screws may differ

Upper bleed screw and brake line (A) is for hand brake system.

Lower bleed screw and brake line (B) is for auxiliary (foot) brake

Hand Brake Bleed

Sealing "O" Rings

Bleeder (Hand Brake) positioned

innermost (higher) on caliper

Bleeder (Foot Brake)

is outermost (lower)

Brake Lever (Handlebar

Brake Pedal (Foot)

Cutaway View Of DH Caliper

Upper Bleed Screw

Lower Bleed Screw

Auxiliary Brake

Line in from

Polaris Sales Inc.