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Inspection and Adjustment
Pump Pressure Check
C h e c k t h e f l u i d D r e s s u r e a s f o l l o w s t o d e t e r m i n e
whether the trouble is in the pump or gearbox.
N O T E ; F i r s t c h e c k t h e p o w e r s t e e r i n g f l u i d l e v e l a n d
pump belt tension.
CAUTION: Disconnect the pump outlet hose (high-pres-
sure line) with care so as not to spill the power steering
fluid on the frame and other parts,
1 . D i s c o n n e c t t h e p u m p o u t l e t h o s e ( h i g h - p r e s s u r e )
from the pump outlet fitting, then install the P/S
joint adapter (pump) on the pump outlet.
P/S PRESSURE GAUGE
07a06 - 001mo1
OUTLET HOSE FITTING
HOSE ATTACHING BOLT
11 N.m (1.1 kgt.m 8lbl.ft)
PRESSURE
CONTROL VALVE
P/S
AOAPTER IHOSEI
07NAK - SR30124
6 x 1,0 mm BOLT
lP.n ol tooll
'| 1 N.m
11.1 kgi.m,8lbtftl
PUMP
FITTING
Connect the P/S joint adapter (hose) to the power
steering pressure gauge, then connect the pump
outlet hose (high-pressure)to the adapter.
Install the power steering pressure gauge to the P/S
joint adapter (pump).
Open the shut-off valve fully.
Open the pressure control valve fulli.
1 .
Start the engine and let it idle.
Turn the steering wheel from lock-to-lock several
times to warm the fluid to operating temperature.
Measure steady-state fluid pressure while idling. lf
t h e p u m p i s i n g o o d c o n d i t i o n , t h e g a u g e s h o u l d
read less than 1500 kPa (15 kgflcm' ,213 psi).
lf it reads high, check the outlet hose or valve body
unit (see General Troubleshooting 17-101.
C l o s e t h e p r e s s u r e c o n t r o l v a l v e , t h e n c l o s e t h e
s h u t - o f f v a l v e g r a d u a l l y u n t i l t h e p r e s s u r e g a u g e
needle is stable, Read the pressure.
lmmediately open the pressure control valve fully.
CAUTION: Do not keep the pressure control valve
closed more then 5 seconds or the pump could be
damaged by over-heating.
lf the pump is in good condition, the gauge should
read at least 6,400 - 7,400 kPa (65 - 75 kgflcm',924
- 1,067 psi). A low.eading means pump output is
too low for full assist. Repair or replace the pump.
P/S PRESSURE GAUGE
07i.{)6 - (x)l(xrol
9 .
1 0 .
SHUT.OFF VAI.VE
1 7 - 2 2
{
I
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Table of Contents
Troubleshooting
