The regulator increases stability of the loaded car at sharp braking and is mounted in a back part of a frame. Operation of the valve is defined by a tension of a spring which presses on the lever with a certain effort. On the unloaded car installed on the flat platform, the spring length measured across has to be 224–228 mm.

1. Disconnect a spring.

2. Designate and disconnect tubes.

3. Turn off bolts and remove the regulator.

4. At installation tighten the union of tubes with the moment 17 N. of m, adjust a spring and pump over brakes.

For adjustment release a bolt and move an arm.