wsm M108S - Power Steering Relief Valve

7-S5
M108S, WSM
STEERING
Hydraulic Flow Test (Continued)
Condition
• Engine speed : Approx. 2600 min
-1
(rpm)
• Rated pressure : 16.5 MPa
168 kgf/cm
2
2390 psi
• Oil temperature : 45 to 55 °C
113 to 131 °F
W1015188
(2) Power Steering Relief Valve
Power Steering Relief Valve Setting Pressure
1. Disconnect the power steering hose from pump port (5) on the
steering controller (6) and set a pressure gauge (3) (Code No.
07916-50321) between them using power steering adaptor (1)
(Code No. 07916-50331), joint (Code No. 07916-50401) and
cable (2) (Code No. 07916-50331).
2. Start the engine and fully turn the steering wheel to the left or
right and read the pressure when the relief valve operates both
idling and maximum engine speed.
3. If the measurement is not within the factory specifications, adjust
the relief pressure by the adjusting plug (4).
IMPORTANTQ
• (Air Bleeding)
Start the engine, then turn the steering wheel slowly in both
directions all the way alternately a few times, and stop the
engine.
(Reference)
• One full turn of the adjusting screw changes the relief setting
pressure by approx. 2.9 MPa (30 kgf/cm
2
, 430 psi).
Condition
• Oil Temperature ......... 45 to 55 °C
113 to 131 °F
W1027018
Hydraulic pump delivery
at rated pressure
Factory spec.
48.9 L/min.
12.9 U.S.gals/min
10.8 Imp.gals/min
Allowable limit
39.1 L/min
10.3 U.S.gals/min
8.6 Imp.gals/min
Relief valve setting
pressure
Factory
spec.
At idling
engine
speed
Above 15.5 MPa
158 kgf/cm
2
2250 psi
At
maximum
engine
speed
Below 16.5 MPa
168 kgf/cm
2
2390 psi
(1) Power Steering Adaptor
(2) Cable
(3) Pressure Gauge
(4) Adjusting Plug
(5) Pump Port
(6) Steering Controller
KiSC issued 05, 2012 A