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1. Serviceability of functioning of the vacuum pump of brake system can be checked up by means of the vacuum gauge.
2. Disconnect from the pump a vacuum tube. To the released union by means of a piece of a suitable hose connect the vacuum gauge.
3. Start the engine and allow to it to work a little on single turns, then measure depth of depression developed by the pump. Roughly, after a minute, depth of depression should make about 500 mm hg At essentially smaller values the pump is faulty and requires replacement - address for the help to experts of the service-centre of company Skoda.
4. Regenerative repair of the vacuum pump is not obviously possible in view of absence on individual sale of necessary spare parts. In default it is necessary to replace all assemblage entirely. |