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Bleeding ABS Brakes

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Some info on how this is done...

Service should be performed by the dealer.

Bleeding Brakes pdf


GENERAL


WARNING
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)

CAUTION
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)

CAUTION
D.O.T. 4 brake fluid will damage painted and body panel surfaces it comes in contact with. Always use caution and protect surfaces from spills whenever brake work is per-formed. Failure to comply can result in cosmetic damage. (00239b)

CAUTION
Do not allow dirt or debris to enter the master cylinder reservoir. Dirt or debris in the reservoir can cause improper operation and equipment damage. (00205c)
Front brake hand lever and rear brake foot pedal must have a firm feel when brakes are applied. If not, bleed system as described.

PROCEDURE
PART NUMBER: HD-48650
TOOL NAME: DIGITAL TECHNICIAN II

PART NUMBER: SNAP-ON BB200A
TOOL NAME: BASIC VACUUM BRAKE BLEEDER

NOTES
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.
When removing or replacing a bleeder valve in the rear brake caliper or front banjo fittings. remove the o-ringfrom the bleeder valve groove or bore and discard. The o-ring is required only for brake bleeding at the factory Although not sold separately it may be present in certain assemblies as currently sold. If care is not taken to remove and discard the o-ring, it may become lodged in the caliper/banjo fitting bore during bleeder valve installation and prevent proper torquing or sealing.

After bleeding the brake system on ABS equipped motor¬cycles, confirm that the brake lines are properly connected if either the ABS module or more than one brake line was removed. To accomplish this, install master cylinder reservoir cover connect motorcycle to DIGITAL TECHNI¬CIAN II (Part No. HD-48650) and perform "ABS Setup- procedure in the "Toolbox" menu.
1.Remove bleeder valve cap. Install end of a length of clear plastic tubing over caliper bleeder valve. Place free end of tube in a clean container.
2.If bleeding rear brake system, stand motorcycle upright, so that rear master cylinder reservoir is level. If bleeding front brake system, rest motorcycle on jiffy stand and turn front wheel toward left fork stop until front master cylinder reservoir is level.
NOTE
Wrap a clean shop cloth around the outside of the master cyl¬inder reservoir to protect paint from brake fluid spills.
3.Remove two screws to release cover from master cylinder reservoir.
4.See Figure 1-24. Add D.O.T. 4 BRAKE FLUID to master cylinder reservoir as follows:
a. Front master cylinder reservoir: flush with step (marked MAX) cast at rear of reservoir or 0.20 in. (5.0 mm) from the top.
b. Rear master cylinder reservoir: flush with ledge cast at front of reservoir or 0.26 in. (6.5 mm) from the top.
5.Pump the brake lever/pedal to build up hydraulic pressure.
6.While holding the brake lever/pedal, open brake caliper bleeder valve about 3/4 turn. Close bleeder valve as soon as a loss of hydraulic pressure is detected (or when brake lever/pedal has moved 1/2 to 3/4 of its full range of travel). Allow brake lever/pedal to return slowly to its released position.
7.Repeat steps 4-6 until all air bubbles are purged and a solid column of fluid is observed in the bleeder tube. Pay careful attention to the level of the fluid in the master cyl¬inder reservoir. To avoid drawing air into the brake lines, always add fluid to the master cylinder reservoir before it empties.
8.Tighten bleeder valve to 80-100 in-lbs (9.0-11.3 Nm). Install bleeder valve cap.
NOTE
If bleeding the front brake system. repeat applicable steps to bleed the line to the second brake caliper.
9.Add brake fluid to the master cylinder reservoir as described in step 4.
10.Install master cylinder reservoir cover, but first verify that the cover gasket bellows is not extended or brake fluid will be ejected from the reservoir. Install two cover screws and alternately tighten as follows:
a. Front master cylinder reservoir: 7-10 in-lbs (0.8-1.1 Nm).
b. Rear master cylinder reservoir: 12-15 in-lbs (1.4-1.7 Nm).
11.If motorcycle is ABS equipped, and either the ABS module or more than one brake line was removed, confirm that brake system is properly connected. To accomplish this, connect motorcycle to DIGITAL TECHNICIAN II (Part No. HD-48650) and perform "ABS Setup" procedure in the "Toolbox" menu.
WARNING
After repairing the brake system, test brakes at low speed. If brakes are not operating properly, testing at high speeds can cause loss of control, which could result in death or serious injury. (00289a)
12.Test ride motorcycle. Repeat the bleeding procedure if brakes feel spongy.

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