Claas K5D00100, Repair Manual

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AXLES & STEERING 1.52
Brake system - bleeding brake system
pressure
General
Bleed the brake system after a brake system
component change and when air in the system is
suspected. Air in the system will not allow the
brakes to release properly and may cause damage.
1. Start the engine and allow the accumulator to
fully charge.
2. Stop the engine. Slowly apply and release brakes
until they will not apply, waiting for one minute
between applications. Repeat this operation three
times.
3. Start the engine and allow the accumulator to
fully charge then stop the engine. Operate the
engine as necessary to maintain accumulator at
working pressure throughout the bleeding
procedure.
4. Attach a bleed tube to the bleed screw (1) on the
brake unit nearest to the brake valve (front right)
and put the bleed tube into a suitable container.
Carefully open bleed screw (1), apply brakes until
all air is bled out of line then close bleed screw (1)
and remove bleed tube. Bleed the other brake units
and the trailer brake valve in the order that follows:
A. Front left (2)
B. Rear right (3)
C. Rear left (4)
D. Trailer brake valve (5)
5. Release brake pressure for at least one minute.
6. Apply brakes, hold pedal down for ten seconds
then release pressure for one minute. Repeat this
operation two more times.
7. Bleed the brakes one more time.
8. Check the system components and brake lines
for leaks.