1. Check the brake hoses for damage, contact with other components and leaks.
2. Check the brake pipes for pinching, kinking, damage, rust and fluid leaks.
3. Check that the hoses are not twisted at the connection points with the tubes and that there are no fluid leaks. If necessary, tighten the connections to the required force.
4. Check that the tubes are not twisted at the points of connection to the ABS modulator and that there are no fluid leaks. If necessary, tighten the connections to the required force.