Turn out the sensor of pressure of working liquid from the perepuskny valve.

Fig. 5.44. Extraction of the perepuskny valve

Unscrew perepuskny the valve and remove laying (fig. 5.44).

Fig. 5.45. Check of the perepuskny valve

Wash out the valve working liquid and check it for leak. For this purpose close the lower opening and force compressed air of 392-490 kPa in an opposite opening. Make sure that air does not come out from an otvestiya on the end of the valve. If there is a leak, replace perepuskny the valve (fig. 5.45).