Service Manual

627333-A 4-5
Brakes
SERVICE BRAKE
Release pressure
m
WARNING: Before disconnect brake
lines. Be sure there is no pressure in the
brake system. Even when the engine is
not running there can still be high
pressure in the brake system.
To release the pressure of the brake system, do the
follow steps:
• Turn of the engine;
FIG. 3: Measure point (1) priority valve.
• Connect a pressure gauge to the priority valve.
Place the pressure gauge so it is readable for the
driver seat;
• Keep pushing down the brake pedal until the
pressure of the brake system is completely gone.
Bleed Brake
NOTE: When you loosen any brake system hydraulic
connection, you must bleed the brake to
remove all air from the system.
1. Make sure that the master cylinder is filled to the
specified level with the type of hydraulic fluid
specified by the equipment manufacturer. Keep the
master cylinder filling during bleeding so that you
do not pull air into the system through the master
cylinder. Make sure the master cylinder is filled
when you are done bleeding the system.
2. Put a clear tube on the bleeder screw. Submerge
the other end of the tube in a clear container of the
specified fluid.
3. Bleed brake.
• For full hydraulic system:
Slowly apply low hydraulic pressure to the
brake. Loosen the bleeder screw. Continue to
apply pressure until no air bubbles appear in
the container of fluid. Tighten the bleeder
screw 12 - 16 Nm (9 - 12 lb-ft), then release the
pressure to the brake.
4. Check for fluid leaks.
FIG. 3
Q000094S
1