Mazda 3 since 2003
1. Operation and car maintenance
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
5.1. General information
5.2. General checks
5.2.1. Check of working liquid of the hydraulic booster of a steering
5.2.1.1. Check of level of working liquid
5.2.1.2. Check of leakage of working liquid
5.2.1.3. Check of pressure of working liquid in hydrosystem
5.2.2. Check of a steering wheel and steering column
5.3. Working operations with the steering mechanism
5.4. Tables
6. Brake system
7. Onboard electric equipment
8. Body
 







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5-2-1-3-proverka-davleniya-rabochejj-zhidkosti-v-gidrosisteme.html

5.2.1.3. Check of pressure of working liquid in hydrosystem

Fig. 5.4. The special device for measurement of pressure of working liquid in hydrosystem


Collect special adaptations, as is shown in drawing 5.4.

Fig. 5.5. Device connection to hoses of the pump of the hydraulic booster


Disconnect the pressure head pipeline from the pump of the hydraulic booster and connect special adaptations (fig. 5.5).
Inhaling moment: 29,4–44,1 N · m.
Remove air from system.
Completely open the valve.
Start the engine and turn a steering wheel to the left and to the right against the stop for temperature increase of working liquid to 50–60 °C.

Fig. 5.6. Pressure check at the closed valve


Completely close the valve. Increase frequency of rotation of the engine to 1000–1500 mines-1 and measure the pressure created by the pump (fig. 5.6).
If pressure does not correspond to norm, repair or replace details of the pump of the hydraulic booster.
Pressure of working liquid: 10,80–11,29 MPA.

ATTENTION
If to leave the valve closed during more than 5 with, the temperature of working liquid considerably will increase that will adversely affect operation of the pump of the hydraulic booster.


Fig. 5.7. Pressure check at the open valve


Completely open the valve of a manometer and increase frequency of rotation of the engine to 1000–1500 mines-1 (fig. 5.7).
Turn a steering wheel to the left and to the right against the stop, then measure pressure of working liquid in the case of the steering mechanism.
If pressure does not correspond to norm, repair or replace details of the steering mechanism.
Pressure of working liquid: 10,80–11,29 MPA.
Remove special adaptations. Establish the pressure head pipeline and tighten it the ordered moment.
Inhaling moment: 29,4–44,1 N · m.
Remove air from system.

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