Power steering pressure check - diesel models (page 2 of 2)

Make

Land Rover

Model

Discovery II (UK)

Section

Adjustments

SteeringPower steering pressure check - diesel models · page 2 of 2

13. Remove bolt from steering box pipe retaining clip. Leaving the PAS reservoir oil pipe in place, release pipe retaining clip and PAS cooler pipe from steering box, discard the seal.

14. Fit tool LRT-57-041 to steering box housing.
15. Fit seal to PAS oil cooler pipe.
16. Fit PAS cooler pipe to LRT-57-041 align the retaining clip to pipes and tighten bolt to 24 Nm (18 lbf.ft).

17. Connect test hoses LRT-57-002 to LRT-57- 041 and tighten unions. Ensure all pipes and fittings are clear of engine rotating parts.
18. Hang pressure gauge in a safe position under bonnet.
19. LHD only: Fit turbocharger intercooler feed pipe and vacuum connection and fit PAS reservoir to mounting bracket. Fit air intake hose to turbocharger and air cleaner and connect multiplug to MAF sensor. The above parts must be refitted in order to run the engine.
20. Fill PAS reservoir, connect battery earth lead. Start engine and allow air to bleed from PAS system, by turning steering from lock to lock. Stop engine and check PAS fluid level.
21. Ensure steering system is free from leaks and maintain maximum fluid level during test.
22. Open the test valve on LRT-57-001 and start the engine.
23. With the engine at idle and normal running temperature, slowly turn the steering wheel and hold on lock.
24. Note reading on pressure gauge.
25. Repeat pressure check on opposite lock, again noting the reading on the pressure gauge.
26. The test pressure should be between 21 and 62 bar, (300 to 900 lbf/in². Pressure will rise to 62 bar (900 lbf/in²) when held on full lock.
27. With the engine at idle, centralise the steering wheel. Pressure should read 7 bar (100 lbf/in²) or below.
28. Pressure outside the above tolerance indicates a fault.
29. To determine if fault is in steering pump or steering rack, close the valve on LRT-57-001 for a maximum of five seconds. Pump damage may occur if test valve is closed for longer periods.
30. If the gauge does not register between 75 and 103 bar, (1500 lbf/in²) (maximum pump pressure), the pump is faulty.
31. If maximum pump pressure is obtained, suspect the steering box.
32. On completion, stop engine, disconnect battery earth lead and syphon fluid from PAS reservoir.
33. LHD only: Disconnect multiplug from MAF sensor, remove air intake hose clips and move hose aside.
34. LHD only: Release PAS reservoir from mounting, for access to turbocharger intercooler pipe.Remove vacuum hose from turbocharger intercooler pipe.Release clips and disconnect intercooler pipe from turbocharger.
35. Remove test equipment from tool LRT-57-041.
36. Remove bolt and clip from steering box.
37. Release PAS cooler pipe from tool LRT-57-041 and discard seal. leaving PAS reservoir oil pipe in place, release tool LRT-57-041 from steering box and discard seal.

29 Steering & suspension