Suzuki SY413 Service Manual page 1503

3B1-6 POWER STEERING (P/S) SYSTEM
1. Orifice A
2
2. Relief valve spring
3. Steel ball
4. Chamber A
5. Chamber B
RELIEF VALVE
The relief valve located in the flow control valve controls the maxi-
mum hydraulic pressure.
The steel ball in the relief valve is under the hydraulic pressure in
the circuit coming through orifice A
turned and the hydraulic pressure increases higher than 8000 kPa
2
(80 kg/cm , 1137 psi), it compresses the relief spring to push the
steel ball which then allows the fluid to flow to the P/S pump.
Such relief valve operation causes a pressure difference to occur
between chambers A and B.
Then the flow control valve moves to the right to make opening in
orifice A narrower, maintaining the hydraulic pressure constant.
1
. When the steering wheel is
2