![](../../../img/37/AC604168AD00ENG.png)
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1.Disconnect the power
steering oil pressure hose from the oil pump (Refer to ), and then
connect following special tools.
- Power steering oil pressure gauge
(MB990662)
- Oil pressure gauge adapter A (pump side)
(MB991548)
- Oil pressure gauge adapter B (hose side)
(MB991549)
2.Bleed air, and then turn the steering wheel
several times while the vehicle is not moving so that the
temperature of the fluid rises to approximately 50 -
60°C. 3.The engine should be
idling. 4.Disconnect the connector for the oil
pressure switch, and place an ohmmeter at the
switch.
caution |
The pressure gauge shut-off
valve must not remain closed for more than 10
seconds.
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5.Gradually close the shut-off valve of the
pressure gauge and increase the hydraulic pressure, then
check whether or not the hydraulic pressure that activates
the switch is the standard value. Standard
value: 1.8 - 2.4 MPa 6.Gradually
open the shut-off valve and reduce the hydraulic pressure,
then check whether or not the hydraulic pressure that
deactivates the switch is the standard
value. Standard value: 0.8 - 2.4
MPa 7.Remove the special tools, and then
tighten the power steering oil pressure hose to the
specified torque. Tightening torque: 57 ±
7 N·m 8.Bleed the system (Refer to
).
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