Nissan Titan. Instruction — part 568
ST-8
< REMOVAL AND INSTALLATION >
STEERING WHEEL
REMOVAL AND INSTALLATION
STEERING WHEEL
On-Vehicle Inspection and Service
INFOID:0000000009883505
CHECKING CONDITION OF INSTALLATION
• Check installation condition of power steering gear assembly, front suspension, axle and steering column.
• Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.
• Check if the nuts for power steering gear assembly are loose.
.
CHECKING STEERING WHEEL PLAY
1. Turn tires straight ahead, start engine, then turn steering wheel to the left and right lightly, and measure
steering wheel movement on the outer circumference when steering wheel is turned up to the point where
tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
• Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to
.
1. Turn tires straight ahead, check if steering wheel is in the neutral position.
2. If it is not in the neutral position, remove steering wheel and reinstall it correctly.
3. If the neutral position cannot be attained by repositioning the steering wheel two teeth or less on steering
stem, loosen tie-rod lock nuts of steering outer sockets, then adjust tie-rods by the same amount in the
opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level, dry surface and set parking brake.
2. Start engine.
3. Bring power steering fluid up to operating temperature of 60
°– 80°C (140°– 176°F).
4. Tires need to be inflated to specified pressure. Refer to
5. Check steering wheel turning force using Tool when steering
wheel has been turned 360
° from the neutral position.
6. If steering wheel turning force is out of specification, inspect
steering column. Refer to
ST-17, "Removal and Installation"
.
End play of the axial direction for steering wheel
: Refer to
LGIA0024E
Steering wheel play on the outer circumference : Refer to
Tool number
: (—) (J-44372)
Steering wheel
turning force
: Refer to
WGIA0035E
STEERING WHEEL
ST-9
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7. If steering column meets specification, repair steering gear. Refer to
ST-27, "Disassembly and Assembly"
.
CHECKING FRONT WHEEL TURNING ANGLE
When checking front wheel turning angle, refer to
ST-10
< REMOVAL AND INSTALLATION >
POWER STEERING OIL PUMP
POWER STEERING OIL PUMP
On-Vehicle Inspection and Service
INFOID:0000000009883506
CHECKING RELIEF OIL PRESSURE
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect Tool between power steering oil pump discharge con-
nector and high pressure hose and then bleed air from the
hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50
°– 80°C (122°– 176°F).
CAUTION:
• Warm up engine with shut-off valve fully opened. If engine is started with shut-off valve closed,
fluid pressure in power steering oil pump increases to maximum. This will raise power steering
fluid temperature excessively.
• Be careful not to contact hose with belt when engine is started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressure gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly.
• If relief oil pressure is outside the specification, disassemble and repair power steering oil pump. Refer
ST-24, "Disassembly and Assembly"
5. After inspection, disconnect oil pressure gauge and oil pressure gauge adapter from hydraulic circuit, con-
nect power steering oil pump discharge connector and high pressure hose and copper sealing washers.
Add power steering fluid and bleed air from hydraulic circuit thoroughly. Refer to
CAUTION:
DO not reuse copper sealing washers.
Tool number:
Pressure gauge and shut-off valve
KV48103500
(J-26357 and J-26357-10)
Power steering
oil pump side
Connector A and O-
ring
KV48105300-4 and
5295262U10 (
—
)
Eye-bolt and O-ring
KV48105300-3 and
5295262U00 (
—
)
High pressure
piping side
Connector B and O-
ring
KV48105300-1 and
5295262U00 (
—
)
Nut
KV48105300-2 (
—
)
SGIA0570E
Relief oil pressure
: Refer to
HYDRAULIC LINE
ST-11
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UNIT REMOVAL AND INSTALLATION
HYDRAULIC LINE
Removal and Installation
INFOID:0000000009883507
Refer to the following illustration for hydraulic line removal.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing
AWGIA0233ZZ
1.
Power steering reservoir tank
2.
Suction hose
3.
High pressure hose
4.
Fluid cooler
5.
Steering gear assembly
6.
Power steering reservoir tank bracket
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