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10-22-proverka-gidravlicheskogo-davleniya-gur.html
10.22. Check of hydraulic pressure of GUR
Check of hydraulic pressure of GUR
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Do not block the locking valve of a manometer more than for 15 seconds at the working engine! Do not hold a steering wheel in extreme provisions more than for 15 seconds! |
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- Check serviceability of a condition of a pulley and correctness of adjustment of a belt of a drive of the steering pump (see. Adjustment of effort of a tension of a belt of a drive of the steering pump).
- Modify properly pressure of a rating of tires.
- Disconnect from the steering pump a hose of the line of a high pressure, establish between the pump and the steering mechanism a transitional nozzle of KV48102500 (J26357-10), having connected to it a manometer of KV48103500/ST27091000 (J26357) (see an illustration Check of hydraulic pressure of GUR).
- Completely open the locking valve and remove from system air jams (see. Pumping of a hydraulic path of a steering drive).
- Check level of hydraulic liquid in the tank of the steering pump, in case of need make the corresponding adjustment.
- Start the engine on single turns for GUR hydraulic liquid warming up to temperature 60 — 80°С.
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The engine should work at completely open locking valve in order to avoid excessive temperature increase as a result of pressure lifting to a maximum level. |
- Lift engine turns to value 1000 in a minute and make pressure measurement, having quickly turned a steering wheel from an emphasis against the stop in both directions.
- If as a result of check the maximum nominal rate (is reached see. Specifications), therefore, the system functions normally. At excess by result of measurement of the maximum value check serviceability of a condition of the valve of management of a stream of the steering pump. If the indication does not reach the top border of an admissible range, slowly block the locking valve and repeat check, pressure lifting to a maximum level testifies to malfunction of the steering mechanism, otherwise believe the steering pump — do not block the locking valve more long than for 15 seconds in a row.
- Disconnect a manometer, remove a nozzle and restore initial connection of hydraulic lines.
- Pump over a hydraulic path of GUR (see. Pumping of a hydraulic path of a steering drive).
- Check level of hydraulic liquid, in case of need make the corresponding adjustment.
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