2005 SUZUKI JIMNY Steering bleed

Downloaded from www.Manualslib.com manuals search engine POWER STEERING (P/S) SYSTEM (If equipped) 3B1-1
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SECTION 3B1
POWER STEERING (P/S) SYSTEM
(If equipped)
CONTENTS
General Description ......................................3B1-2
Diagnosis .......................................................3B1-3
Diagnosis Table .......................................... 3B1-3
Steering Wheel Play Check ........................ 3B1-5
Steering Force Check ................................. 3B1-5
Power Steering Belt Check ......................... 3B1-6
Power Steering Belt Tension Adjustment .... 3B1-6
Power Steering Fluid Level Check .............. 3B1-6
Idle-Up System Check ................................ 3B1-7
Power Steering Fluid Leakage Check ......... 3B1-7Air Bleeding Procedure ............................... 3B1-8
Hydraulic Pressure In P/S Circuit Check .. 3B1-10
On-Vehicle Service ..................................... 3B1-12
Power Steering Belt .................................. 3B1-12
Power Steering (P/S) Pump ...................... 3B1-12
Power Steering (P/S) Gear Box ................ 3B1-18
Tightening Torque Specifications ............. 3B1-21
Required Service Materials ........................ 3B1-21
Special Tools ............................................... 3B1-21 WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System :
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
All steering gear fasteners are important attaching parts in that they could affect the performance of
vital parts and systems, and/or could result in major repair expense. They must be replaced with one
of the same part number or with an equivalent part if replacement becomes necessary. Do not use a
replacement part of lesser quality or substitute design. Torque values must be used as specified dur-
ing reassembly to assure proper retention of these parts.

Downloaded from www.Manualslib.com manuals search engine POWER STEERING (P/S) SYSTEM (If equipped) 3B1-3
Diagnosis
Diagnosis Table
Condition Possible Cause Correction
Steering wheel feels
heavy
(at low speed)Fluid deteriorated, low viscosity, different type of
fluid mixedChange fluid.
Pipes or hoses deformed, air entering through
jointCorrect or replace.
Insufficient air bleeding from piping Bleed air.
Belt worn, lacking in tension Adjust belt tension or replace belt
as necessary.
Tire inflation pressure too low Inflate tire.
Wheel alignment out of adjustment Adjust front wheel alignment.
Steering wheel installed improperly (twisted) Install steering wheel correctly.
Hydraulic pressure failing to rise (See NOTE
“A”.)Replace P/S pump.
Slow hydraulic pressure rise (See NOTE “A”.)
Steering wheel feels
heavy momentarily
when turning it to the
left or right.Air drawn in due to insufficient amount of fluid Add fluid and bleed air.
Slipping belt Adjust belt tension or replace belt
as necessary.
No idle-up (See NOTE
“B”.)Defective pressure switch Replace pressure switch
(terminal set).
NOTE:
“A” : Be sure to warm up engine fully before performing this check. Pump vanes are sometimes
hard to come out where temperature is low.
“B” : Acceptable if idling speed does not drop.
Condition Possible Cause Correction
Steering wheel returns
slowly from turns.
(See NOTE “C”.)Dust or foreign object mixed in fluid Change fluid.
Deformed pipes or hoses Correct or replace.
Steering column installed improperly Install correctly.
Wheel alignment maladjusted Adjust.
Linkage or joints not operating smoothly Correct.
Vehicle pulls to one
side during straight
driving.Low or uneven tire inflation pressure Inflate tire (s) as necessary.
Wheel alignment maladjusted Adjust.
Defective spool valve Replace gear box assembly.
Steering wheel play is
large and vehicle wan-
ders.Loose steering shaft nut Retighten.
Loose linkage or joint Retighten.
Loose gear box fixing bolt Retighten.
Front wheel bearing worn Replace.
Fluid leakage
Loose joints of hydraulic pressure pipes and
hosesRetighten.
Deformed or damaged pipes or hoses Correct or replace.
Gear box Replace gear box assembly.

Downloaded from www.Manualslib.com manuals search engine 3B1-8 POWER STEERING (P/S) SYSTEM (If equipped)
Air Bleeding Procedure
AIR BLEEDING FROM SYSTEM
1) Jack up the front end of vehicle and apply rigid rack.
2) Fill P/S fluid reservoir with fluid up to specified level.
3) With engine running at idling speed, add fluid up to specified
level.
4) When fluid stops reducing, stop engine and leave P/S sys-
tem as it is for about 10 minutes.
5) After running engine at idling speed for 1 minute, stop it.
6) As a final step, check to make sure that fluid is up to speci-
fied level.
7) Check steering condition and P/S system for fluid leakage.
AIR BLEEDING FROM GEAR BOX
1) Remove steering gear box from vehicle referring to “Power
Steering (P/S) Gear Box” in this section.
2) Install special tool as shown.
Special tool
(A) : 09945-35010 CAUTION:
When air bleeding is not complete, it is indicated by
foaming fluid on level gauge or humming noise from P/S
pump.
NOTE:
Bleed air from system when P/S system has been ser-
viced in any way other than replacement of steering gear
box (e.g., disconnection of piping, replacement of P/S
pump). Never operate steering system while servicing.
Or Air Bleeding from gear box must be performed.
NOTE:
Bleed air from gear box:
When steering gear box has been replaced with a new
one.
When entry of air into hydraulic circuit of steering gear
box is suspected.
1. Steering gear box 3. High pressure hose / pipe
2. Low pressure hose / pipe

Downloaded from www.Manualslib.com manuals search engine POWER STEERING (P/S) SYSTEM (If equipped) 3B1-9
3) After running engine at idling speed for 3 to 5 seconds, stop
it and add fluid up to specified level. Repeat this step a few
times.
4) Set steering gear box (1) to state [A] as shown.
5) With engine running at idling speed, turn input shaft by using
special tool in both directions as far as it locks till all foams
are gone.
Special tool
(B) : 09944-18211
6) Perform Step 5) but with steering gear box in state [B] this
time and then in state [C].
7) Set input shaft at neutral position (straight position).
8) Remove (special) tools and install steering gear box to vehi-
cle and P/S pipe / hose to steering gear box referring to
“Power Steering (P/S) Gear Box” in this section.
9) Bleed air in P/S system referring to “Air Bleeding Procedure”
in this section.
10) Install pitman arm and steering lower shaft to steering gear
box. NOTE:
Don’t operate steering system for this step.
NOTE:
Add fluid into P/S fluid reservoir whenever its level
lowers while servicing.
Turn input shaft till it locks, return it a little and turn it
again in the same direction till it locks. Repeat this
some times.
NOTE:
To change of state of gear box from [A] to [B] and from
[B] to [C], turn gear box in arrow direction in figures [A]
and [B].
NOTE:
As input shaft makes 4 full turns from lock to lock, neu-
tral position is obtained by turning it till it locks and turn-
ing it back by 2 full turns.
2. Vinyl tube (See-through tube)
NOTE:
Don’t install pitman arm and steering lower shaft to
steering gear box.
Installation of these parts will cause input shaft and/or
sector shaft to turn, allowing air to enter gear box.
Plug up opening after pipe or hose disconnection.

Downloaded from www.Manualslib.com manuals search engine 3B1-10 POWER STEERING (P/S) SYSTEM (If equipped)
Hydraulic Pressure In P/S Circuit Check
1) Clean where pipe is connected thoroughly, then disconnect
high pressure hose from high pressure pipe connector and
connect oil pressure gauge (special tool) as shown.
Special tool
(A) : 09915-77410
(B) : 09915-77420
2) Bleed air.
3) With engine running at idling speed, keep turning steering
wheel to the right and left till fluid in P/S fluid reservoir is
warmed to 50 to 60 °C (122 – 140 °F)
4) Back pressure check
With engine running at idling speed and hands off from
steering wheel, check hydraulic pressure.
If back pressure exceeds 980 kPa (10 kg/cm
2, 142 psi),
check control valve and pipes for obstruction.
Back pressure : 980 kPa (10 kg/cm
2, 142 psi)
1. To gear box 4. Union bolt
2. Attachment 5. Pressure hose
3. Washer
1. P/S fluid reservoir 5. Low pressure side
2. P/S pump 6. High pressure side
3. Steering gear box 7. Valve (open)
4. Oil pump pressure gauge

Downloaded from www.Manualslib.com manuals search engine 3B1-18 POWER STEERING (P/S) SYSTEM (If equipped)
INSTALLATION
Install components in reverse order of removal procedure noting
the following points.
Tighten each bolt as specified below.
Tightening torque
Oil pump mounting bolts
(a) : 25 N·m (2.5 kg-m, 18.5 lb-ft)
Oil pump high pressure union bolt
(b) : 60 N·m (6.0 kg-m, 43.5 lb-ft)
Adjust P/S belt referring to “Power Steering Belt Check” in
this section.
Connect pressure switch terminal.
Power Steering (P/S) Gear Box
REMOVAL
1) Take out fluid in P/S fluid reservoir with syringe or such.
2) Turn steering wheel fully counterclockwise and loosen sector
shaft nut of P/S gear box.
3) Return steering wheel to straightforward state and remove
pitman arm from P/S gear box by using puller.
4) Remove radiator (for left-steering vehicle) referring to “Radi-
ator” in Section 6B
5) Remove radiator support member.
6) Disconnect suction hose and return hose from P/S fluid res-
ervoir, and remove P/S fluid reservoir assembly (for left-
steering vehicle).
7) Remove steering lower shaft joint bolt (2).CAUTION:
After installation, fill A/T fluid (an equivalent to
DEXRON
®-II, DEXRON®-IIE or DEXRON®-III) and be sure
to bleed air referring to “Air Bleeding Procedure” in this
section.
1. Union bolt
1. Steering lower shaft

Downloaded from www.Manualslib.com manuals search engine POWER STEERING (P/S) SYSTEM (If equipped) 3B1-19
8) Disconnect high pressure hose (2) and return hose (3) from
gear box (1).
9) Remove gear box assy from vehicle.
INSTALLATION
Reverse removal procedure to install P/S gear box noting the fol-
lowing points.
Tightening torque specification.
Tightening torque
Power steering gear box mounting bolt and nuts
(a) : 80 N·m (8.0 kg-m, 58.0 lb-ft)
Gear box high pressure union bolt
(b) : 35 N·m (3.5 kg-m, 25.5 lb-ft)
Before servicing, set steering wheel and wheel / tire at
straight position. NOTE:
Plug up the section where hose disconnection.
CAUTION:
Never turn gear box input shaft. Otherwise, air goes into
gear box, which needs air bleeding for gear box.
NOTE:
Don’t disassemble P/S gear box.
For adjustment of worm shaft starting torque, refer to
item “Adjustment of Worm Shaft Starting Torque” in
Section 3B.
1. Steering gear box 4. High pressure hose
2. Bolt (long) 5. Return hose
3. Bolt (short)

Downloaded from www.Manualslib.com manuals search engine 3B1-20 POWER STEERING (P/S) SYSTEM (If equipped)
Install pitman arm (1) to sector shaft (2) of P/S gear box (3)
with match marks “A” and “B” aligned as shown in figure and
torque to specification.
Tightening torque
Pitman arm mounting nut
(a) : 135 N·m (13.5 kg-m, 98.0 lb-ft)
Install lower shaft by the following steps.
1) Align flat part of steering gear box worm shaft (1) with bolt
hole in lower joint as shown. Then insert lower joint (2) onto
worm shaft.
2) Be sure that front wheels and steering wheel are in straight-
forward state and insert upper joint onto steering shaft.
3) Torque lower shaft joint bolt to specification.
Tightening torque
Steering shaft lower joint bolt
(a) : 25 N·m (2.5 kg-m, 18.0 lb-ft)
Fill engine coolant to radiator.
Bleed air in P/S circuit referring to “Air Bleeding Procedure”
in this section.