UAZ HUNTER 315148, Руководство по эксплуатации

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Change the brake fluid regularly for proper work of the brakes.
The recurrence of the change is indicated in the service book.
Drain old fluid via the bypass valves of the wheel cylinders and
proportioning valve, and then replace it with a new one.
fill the brake system as follows:
1. Check all couplings of the hydraulic drive of the brakes
for leakages and the condition of the flexible rubber pipes.
2. Clean the bypass valves and the protective caps of the
wheel cylinders from dust and dirt.
3. Clean the tank of the master cylinder from dust and dirt
around the cap and uncover it. Fill the tank with brake fluid up
to the MAX mark.
4. Press the brake pedal several times to eliminate effect of
the vacuum formation in the brake booster.
5. Bleed the brake system.
Bleed the system as follows:
1. Bleed successively the chambers of the right and left rear
wheel brake cylinders, the front circuit of the proportioning
valve and then the right and left front wheel brake cylinders.
2. Remove the cap from the bypass valve of the wheel cylinder
or from the proportioning valve and place a special rubber hose
(approx. 400 mm long) on the valve.
Drop the other end of the hose into a transparent vessel with
no less than 0.5 l capacity, which is half-filled with brake fluid.
3. Press the brake pedal 3-5 times abruptly, hold it in the
extreme position and simultaneously unscrew the bypass valve for
1/2-3/4 of a turn, in order to release the fluid portion from the
system to a vessel. After the pedal goes forward up to the stop,
screw the valve. Repeat the operation until bubbles stop coming
out from the hose, dropped into the vessel with brake fluid.
4. When the bleeding is over, press the pedal and hold it in
the extreme position, screw the bypass valve and remove the
hose. Dry the valve head and put on the protective cap.
5. Add brake fluid up to the MAX mark into the master
cylinder tank.
Cover the tank carefully to avoid breaking the cap.
While bleeding, add the fluid to the master cylinder tank in
time and do not let the fluid level decrease lower than 2/3 of
the tank volume. Hold the hose end dropped into the fluid.
Check the brake system when the vehicle is in motion. If the
working brakes and their drives are adjusted correctly and the