6
Bleeding the Hydraulic Brake System
HYDRAULIC BRAKE AND PARK BRAKE
SYSTEMS
2038
Figure 6-7
Master Cylinder Rod and Brake Pedal
BLEEDING THE HYDRAULIC BRAKE SYSTEM
See General Warnings, Section 1, Page 1-2.
WARNING
• Do not bleed the brakes in the same manner as a DOT 3 system. Failure to bleed the brakes as
instructed in this manual will result in decreased braking performance due to air being trapped in
the hydraulic system.
• Use only DOT 5 brake fluid to fill the master cylinder. NEVER mix DOT 3, DOT 4, or DOT 5.1 with
DOT 5 as it IS NOT compatible.
The hydraulic system must be free of air. Air enters the hydraulic system whenever the system is opened and will
result in a “spongy” brake pedal.
The master cylinder controls two separate hydraulic sub-systems. The front two wheels are connected to the front
portion of the master cylinder and the rear wheels to the rear portion. One or both sub-systems may require bleeding,
depending on where the hydraulic system was opened.
Pressure or vacuum bleeding, with preference given to the pressure bleeding method, is the recommended way to
remove air from a brake system filled with DOT 5 silicone brake fluid. If a pressure or vacuum brake bleeding tool is not
available, manually bleeding the system can be accomplished when done carefully.
BLEEDING BRAKES ON A DOT 5 FLUID FILLED SYSTEM
1.
Remove all cargo from the cargo bed (including accessories) in preparation for lifting the vehicle. Turn the key
switch OFF and remove the key. Place the Forward/Reverse handle in NEUTRAL.
2.
Check the brake pedal and master cylinder push rod for proper adjustment before the brake system is bled.
See Brake Pedal Adjustment, Section 5, Page 5-3.
Page 6-18
2016 Carryall 1500/1700 and XRT 1550 Maintenance and Service Manual
Summary of Contents for Carryall 1500 2016
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