Checking the pressure in the hydraulic system TD6 (Range Rover 3)

Before disconnecting the battery, make sure that all requirements and conditions contained in the section on disconnecting the battery are met.

GENERAL INFORMATION, Precautions when working with electrical equipment.

Pressure check

1. Disconnect the negative terminal from the battery.

2. Pump out the working fluid from the power steering reservoir.

3. Place an absorbent cloth to prevent splashing of the working fluid.

4. Loosen the high pressure pipe from the power steering pump and remove the pipe.

CAUTION: Avoid allowing working fluid to come into contact with the generator.

5. Install the LRT-57-034A adapter onto the high pressure nipple of the power steering pump.



6. Connect the LRT-57-035 adapter to the existing high pressure pipe.



7. Attach the LRT-57-002 tube to each adapter.

8. Connect the LRT-57-005 pressure gauge to the LRT-57-001 test valve.

9. Connect the LRT-57-002 hoses to the LRT-57-001 valve and tighten the connections.

10. Connect the negative terminal to the battery.

11. Check for any leaks of power steering fluid from the steering system and test equipment connections.

12. During testing, maintain the required level of working fluid in the power steering reservoir.

13. Open the test valve and start the engine.

14. With the engine idling, slowly turn the steering wheel to the full lock position and hold it.

15. Repeat the operation for the other extreme position.

16. Record the system pressure readings.

17. With the engine idling, release the steering wheel. The pressure in the system should be less than 7 bar.

18. If the pressure is higher than specified, it indicates a malfunction.

19. To determine whether there is a fault in the pump or in the steering gearbox, close the valve for a maximum of 5 seconds.

CAUTION: Keeping the valve closed for longer may damage the power steering pump.

20. If the pressure values are outside the limits specified in the General Information section, replace the power steering pump.

21. If the maximum pressure in the hydraulic system is within the norm, the fault may be in the steering mechanism unit.

22. Complete the check, stop the engine, disconnect the ground wire from the battery and pump out excess working fluid from the power steering reservoir.

23. Dismantle the test equipment.



24. Clean the power steering pump and pipe connections.

25. Install a new sealing ring on the high-pressure pipe end, connect the pipe to the pump and tighten the union nut to a torque of 25 N·m.

26. Connect the negative terminal to the battery.

27. Add working fluid to the required level and remove air from the system.

STEERING, ADJUSTMENTS, Power assisted steering (PAS) - bleeding.