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1. Start the engine, allow to it to work within two-three minutes, then muffle.
2. Some times squeeze out a pedal of a foot brake with normal effort, - at everyone to rolling the height of position of the squeezed out pedal should increase.
3. Keeping a pedal squeezed out, start the engine, - the pedal should fail considerably.
4. Without releasing a pedal, muffle the engine and keep a pedal squeezed out during not less than 30 seconds, - for stipulated time the height of position of a pedal should not to change. Insignificant lifting of a pedal will testify to presence of leaks in the amplifier, - check up serviceability of functioning of the control valve. If the valve is perfectly in order, replace assemblage of the servo-driver of the amplifier. |
