HOME 1.12 BLEEDING BRAKES GENERAL Any time the ABS module, either master cylinder, or any line between a master cylinder and the ABS module is disconnected or replaced, Digital Technician II must be used during the brake bleeding procedure to verify all air is removed from the system. Failure to do so could result in air in the hydraulic brake system, reducing brake effi- ciency, which could result in death or serious injury. (00585b) Use denatured alcohol to clean brake system components. Do not use mineral-based solvents (such as gasoline or paint thinner), which will deteriorate rubber parts even after assembly.
Deterioration of these components can cause brake failure, which could result in death or serious injury. (00291a) 1. Bleed front and rear brakes separately. Remove bleeder valve cap. Install end of a length of clear plastic tubing over caliper bleeder valve. Place opposite end in a clean container. Direct contact of D.O.T. 4 brake fluid with eyes can cause irritation. Avoid eye contact. In case of eye contact flush with large amounts of water and get medical attention. Swallowing large amounts of D.O.T. 4 brake fluid can cause digestive discomfort. If swallowed, obtain medical atten- tion. Use in well ventilated area. KEEP OUT OF REACH OF CHILDREN. (00240a) a.
Front brake bleeder valve-see Figure 1-37 . b. Rear brake bleeder valve-see Figure 1-38 . 2. Stand motorcycle upright. Clean and remove covers to master cylinder reservoir. 3. Add D.O.T. 4 BRAKE FLUID to master cylinder reservoir. D.O.T. 4 brake fluid will damage painted and body panel surfaces it comes in contact with. Always use caution and a. Front brake master cylinder reservoir: Fluid level should be at MAX LEVEL. See 2.15 FRONT BRAKE MASTER CYLINDER/RESERVOIR . reservoir. Dirt or debris in the reservoir can cause improper operation and equipment damage. (00205c) Do not fill above the rear brake reservoir above the top of the sight window at the rear of the reservoir.
Front brake hand lever and rear brake foot pedal must have a firm feel when brakes are applied. If not, bleed system as described. sm04781 PROCEDURE TOOL NAME PART NUMBER DIGITAL TECHNICIAN II HD-48650 BASIC VACUUM BRAKE BLEEDER SNAP-ON BB200A • For best results use the BASIC VACUUM BRAKE BLEEDER (Part No. Snap-On BB200a) or equivalent tool, particularly if the brake system was completely drained. Refer to the instructions provided with the tool. If a vacuum brake bleeder is not available, use the procedure which follows. BASIC VACUUM BRAKE BLEEDER (Part No. Snap-On BB200A) NOTES Figure 1-37. Front Brake Bleeder Valve • formed. Failure to comply can result in cosmetic da (00239b) mage. b.
Rear brake master cylinder reservoir: Fluid level should be 12.7 mm (0.5 in.) below reservoir's gasket surface. See 2.17 REAR BRAKE MASTER CYL- INDER AND RESERVOIR. ylinder NOTE Do not allow dirt or debris to enter the master c Hydraulic brake fluid blad can be used to fill brake bleeder valve. Remove ma that system cannot pres bleeding equipment when with master cylinder reserv der-type pressure equipment master cylinder through the ster cylinder reservoir cover so surize. Do not use pressure the hydraulic system is sealed oir cover and gasket in place. 2009 VRSC Se