Checking the pressure characteristic of the steering pump | Checking the pressure characteristic of the steering pump |
Checking the pressure characteristic of the steering pump | Checking the pressure characteristic of the steering pump |
1. Illustrative material on the procedures for checking the pressure characteristic of the power steering pump is presented in illustrations, which include all references in the text.
2. Open the lid (30g) and pump out hydraulic fluid from the steering pump reservoir.
3. Disconnect the pressure expansion hose from the pump (30i) and connect to the last adapter (038a).
4. Connect the adapter to the pump nozzle (038b).
5. Connect the pressure gauge (039) between adapters (038a and 038b).
6. Fill the power steering reservoir with fresh fluid to the required level.
7. Start the engine and raise its speed to 1000 per minute.
8. Close the throttle valve (039a) and read from the pressure gauge the indication of the maximum working pressure of the power steering pump, - try to read the indication as soon as possible in order to avoid the risk of oil overheating. Compare the measurement result with the nominal value (see Specifications).
9. Stop the engine and pump out the oil from the power steering reservoir.
10. Remove the pressure gauge and restore the original connection of the hydraulic lines - do not forget to replace the O-ring of the expansion hose barb (30i).
11. Fill the reservoir with the required amount of fresh fluid (see chapter Checking fluid levels, leak control).
12. In conclusion, visually check the power steering hydraulic path for signs of leak development.