Hydraulic Pressure In P/S Circuit Check - Suzuki Liana RH413 Service Manual

6C-5 Power Assisted Steering System:

Hydraulic Pressure in P/S Circuit Check

1) After cleaning joint of high pressure hose and P/S
pump (3) thoroughly, disconnect hose from pump
and install special tool (oil pressure gauge,
attachment and hose). Tighten each flare nut to
specified torque.
Special tool
(A): 09915-77411
(B): 09915-77420
1. P/S fluid reservoir
2. Gauge valve (open)
4. P/S gear box
S3RH0A6304005
I3RH0A630003-01
5. High pressure side
6. Low pressure side
2) Check each connection for fluid leakage and bleed
air referring to "Air Bleeding Procedure".
3) With engine idling, turn steering wheel and warm up
engine till temperature of fluid in tank rises to 50 – 60
°C (122 – 140 °F).
4) Check back pressure by measuring hydraulic
pressure with engine idling and hands off steering
wheel.
When back pressure is higher than specified values,
check control valve and piping for clogging.
Back pressure
Lower than 1000 kPa (10 kg/cm
1. P/S fluid reservoir
2. Gauge valve (open)
3. P/S pump
5) Check relief pressure.
• Increase engine speed to about 1500 r/min. (rpm).
Close gauge valve (2) gradually while watching
pressure increase indicated by gauge and take
reading of relief pressure (maximum hydraulic
pressure).
• When it is higher than specified values, possible
cause is malfunction of relief valve.
I2RH01630008-01
2 , 142 psi)
I2RH01630009-01
4. P/S gear box
5. High pressure side
6. Low pressure side