STEERING
B2420, WSM
7-S6
Relief Valve Setting Pressure
1. Open the bonnet and remove the front grille.
2. Disconnect the battery negative cable.
3. Remove the steering wheel (2) and then remove the meter
panel (1) and panel under cover.
4. Remove the plug (3) of power steering gear box and then set the
relief valve pressure tester (use adaptor D). (See page G-33)
5. Reassemble the meter panel (1) and steering wheel (2).
6. Connect the main switch connector.
7. Start the engine. After warming up, set the engine speed at
approx. 2600 min
-1
(rpm).
8. Fully turn the steering wheel to the left end to read the relief
pressure. After reading, stop the engine.
9. If the pressure is not factory specification, loosen the lock nut
and adjust by adjusting screw (4).
(Air Bleeding)
• Start the engine, then turn steering wheel slowly in both
directions all the way alternately a few times, and stop the
engine.
(Reference)
• Replace the hydraulic pump if pressure does not rise in 11.5 to
12.5 MPa (118 to 127 kgf/cm
2
, 1670 to 1810 psi).
Condition
• Engine speed
Approx. 2600 min
-1
(rpm)
• Oil temperature
45 to 55 °C (113 to 131 °F)
9Y1210436STS0006US0
Power steering relief
valve setting pressure
Factory specification
11.5 to 12.5 MPa
118 to 127 kgf/cm
2
1670 to 1810 psi
(1) Meter Panel
(2) Steering Wheel
(3) Plug
(4) Adjusting Screw
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