Zetor CRYSTAL 150, Operator'S Manual

Page: 165 / 182

Bleeding the rear brake system
FH12N018
- Check the quantity of brake liquid in the compensation tank; fill up new liquid to the maximum level.
- Slide a hose onto the corresponding brake cylinder screw and immerse its other end to the bottom of
a transparent container partly filled with the brake liquid.
- Depress the brake pedal, release the bleeding screw by 1/4 turn at the most, further depress the brake
pedal and tighten the bleeding screw.
- Release the brake pedal and repeat the procedure until air bubbles stop escaping from the hose.
Foot brake check
During the bleeding observe the liquid level in the
compensation tank to avoid aspiration of air (A).
Make sure that the hose end is continuously
immersed in the liquid and hold the container as high
as possible (B). After two years you must replace the
brake liquid in the whole brake circuit.
FH12N019
With the foot brake pedals disconnected depress the
pedal with the maximum force of approx 500 N. If the
pedal can be depressed almost to the stop consisting in
the boss on the bottom part of the console, the foot brake
must be adjusted.
F287
ADJUSTMENT
164