PDF associated:
/BrakeMstrBleedngInstr042005.pdf
Brake Master Bleeding Instructions ATTENTION Refer to the appropriate shop manual for your vehicle to obtain specific service procedures for this part If you do not have a service manual or lack the skill to install this part it is recommended that you seek the services of a qualified technician Pay special attention to all cautions and warnings included in the shop manual Read and follow all instructions carefully ABS equipped cars may require special bleeding and installation procedures Consult the shop manual for specifics procedures WARNING This Brake Master Cylinder MUST be bench bled before installing on the vehicle This process will remove air from the cylinder bore Failure to bench bleed the cylinder will result in air being introduced into the rest of the brake system DO NOT OPERATE VEHICLE UNTIL A NORMAL BRAKE OPERATION IS OBTAINED WARNING Use only new brake fluid from a sealed container Do not reuse old brake fluid DO NOT USE DOT 5 rated brake fluid in ABS equipped vehicles Foaming of the brake fluid will take place during ABS operation Do not mix different DOT rated brake fluids Flush the entire brake system to remove all contaminated fluid BRAKE MASTER CYLINDER BLEEDING INSTRUCTIONS 1 Secure the master cylinder in a vise by the mounting ear on the casting DO NOT CLAMP THE BORE AREA OF THE CYLINDER DISTORTION OF THE BORE CASTING WILL OCCUR 2 Remove the protective plugs from the outlet ports 3 Install the bleeder plugs into the ports Tighten gently to seat Using a blunt instrument or wooden dowel to avoid piston damage slowly depress the piston into the bore using no more than 1 inch strokes Repeat the process until the piston cannot be depressed anymore than 1 8 inch and no more air bubbles appear in reservoir TECH TIP Gently tapping the casting with a plastic screwdriver handle or a wooden dowel will encourage the air bubbles to escape from the bore during the bleeding process Brake Master Bleeding Instructions IMPORTANT when bleeding step bore design master cylinders you must pause 15 seconds between strokes to avoid fluid aeration 4 Leave the plugs in the ports and install the master cylinder on the vehicle 5 Install one brake line at a time Apply light pressure to the brake pedal and break the line s loose to bleed the junction between the master cylinder and the brake line 6 Tighten brake line nuts to the specification found in the shop manual Do not over tighten Damage to threads may occur 7 After installing the master cylinder be sure to flush the entire brake system with fresh fluid from a sealed container 8 Refer to the shop manual for specific bleeding flushing procedures especially when dealing with split diagonal brake systems and ABS equipped vehicles 9 Check for leaks and maintain the proper fluid level 10 Check for proper brake operation before driving the vehicle TECH TIPS When bleeding the brake system be sure the master cylinder is level The rear of the vehicle may have to be raised if the master cylinder is mounted on an angle Use caution when handling brake fluid Prevent contact with skin face eyes and painted surfaces DO NOT under any circumstances introduce any petroleum based fluids gas engine oil power steering fluid transmission fluid etc to the brake system Failure swelling of the all rubber components will occur Brake fluid absorbs moisture Never reuse old brake fluid Always use fresh brake fluid from a sealed container
