BRAKES 27 (Exploded View of wheel cylinder) For identification, a contaminated seal can be compared with a new seal (but do not allow them to touch). If the old one is appreciably larger, seal contamination is indicated. Whenever wheel cylinders are serviced, replace seals and dust covers from appropriate wheel cylinder kit. FLUSHING BRAKE HYDRAULIC SYSTEM It is always recommended that entire hydraulic system be thoroughly flushed with clean brake fluid whenever new parts are installed in it. Period change of brake fluid is also recommended. BLEEDING OF HYDRAULIC SYSTEM: The process of removing air from the hydraulic pipelines and cylinder is known as “Bleeding”. The brake hydraulic lines are based on diagonal split system. Whenever any brake line or hose is disconnected at the wheel, bleeding operation must be performed at both the ends of the line of the removed pipe or hose. (I.e. if the rear left side brake pipe or hose is disconnected, both the rear left and front right side of the system is to be bleeded) When any joint part of the Master cylinder, other joint part between the master cylinder and each brake of the wheel is removed or the level of brake fluid in the reservoir has been allowed to fall so low that the air has been drawn into the system, then the hydraulic brake system must be bled at all 4 wheel brakes.
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