Nissan Pathfinder (2012 year). Manual — part 567

ST-28

< UNIT DISASSEMBLY AND ASSEMBLY >

STEERING COLUMN

Install new tamper resistant self-shear screws.

INSPECTION AFTER ASSEMBLY

When the steering wheel does not turn smoothly, check as follows:
1. Check the steering column for the following:

• Damage to the column tube or bearings

• Wear around the seal edges

• Corrosion or pitting around the seal sliding area

Replace the steering column as an assembly, if necessary.

CAUTION:

• Do not exert any axial load or impact to the steering column.

• Replace the column if it is depleted of grease, worn, damaged, or if any scratches or coating

separation is present on the shaft seal area.

2. If the vehicle has been in a collision, or if noises are heard com-

ing from the steering column, check column length (L) as shown.

If out of specification, replace the steering column as an assem-

bly.

3. Check the tilt device for proper operation range.

WGIA0009E

Steering column
length (L)

Refer to

ST-34, "Steering Column"

.

AWGIA0147ZZ

Range (A)

Refer to

ST-34, "Steering Column"

.

WGIA0083E

August 2012

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2012 Pathfinder

POWER STEERING OIL PUMP

ST-29

< UNIT DISASSEMBLY AND ASSEMBLY >

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POWER STEERING OIL PUMP

Disassembly and Assembly

INFOID:0000000007356589

VQ40DE ENGINE

VK56DE ENGINE

AWGIA0137GB

1.

Connector

2.

Suction pipe

3.

O-ring

4.

Bracket

5.

Pulley

6.

Lock washer

7.

Body assembly

8.

Copper sealing washers

Apply Genuine NISSAN PSF or equivalent

LGIA0038E

1.

Bracket

2.

Spring washer

3.

Pulley

4.

Power steering pump

5.

High pressure bracket

6.

O-ring

7.

Suction pipe

Front

Apply Genuine NISSAN PSF or equivalent

August 2012

2012 Pathfinder

2012 Pathfinder

ST-30

< UNIT DISASSEMBLY AND ASSEMBLY >

POWER STEERING OIL PUMP

INSPECTION BEFORE DISASSEMBLY

Disassemble the power steering oil pump only if the following items are found.

• Deformed or damaged pulley, bracket, connector or suction pipe

• Oil leakage from the suction pipe or connector.

DISASSEMBLY

NOTE:

Mount the power steering oil pump in a vise as needed.
1. Remove the connector bolt, connector and copper sealing washers.

CAUTION:

Do not reuse the copper sealing washers.

2. Remove the suction pipe and O-ring.

CAUTION:

Do not reuse the O-ring.

3. Remove the pulley nut and pulley.
4. Remove the bracket bolts and bracket(s).

INSPECTION AFTER DISASSEMBLY

Body Assembly Inspection

Check the power steering oil pump body assembly for damage. If any damage is found, replace with a new

power steering oil pump assembly.

ASSEMBLY

Assembly is in the reverse order of disassembly.

CAUTION:

• Do not reuse O-ring or copper sealing washers.

• Apply a coat of Genuine NISSAN PSF or equivalent to the O-ring. Refer to

MA-18, "FOR USA AND

CANADA : Fluids and Lubricants"

(United States and Canada),

MA-20, "FOR MEXICO : Fluids and

Lubricants"

(Mexico).

August 2012

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2012 Pathfinder

STEERING GEAR AND LINKAGE

ST-31

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STEERING GEAR AND LINKAGE

Disassembly and Assembly

INFOID:0000000007356590

CAUTION:

• Secure the gear housing assembly with a vise. Use copper plates or equivalent to prevent it from

being damaged. Do not grip the cylinder with a vise.

• Before performing disassembly, clean the gear housing assembly. Be careful not to allow any

cleaner to contact the discharge and return port connectors.

DISASSEMBLY

1. Remove the cylinder tubes from the gear housing assembly.
2. Loosen the lock nuts of the outer sockets, then remove the outer sockets from the inner sockets.
3. Remove the boot clamps from the boots, then remove the boots from the inner sockets and gear housing

assembly.

CAUTION:

• Do not reuse the large-diameter boot clamps.

• Do not damage the boots, inner socket or gear housing assembly. If they are damaged, replace

them.

4. Remove the inner sockets.

INSPECTION AFTER DISASSEMBLY

Boot

Check boot for tears, cracks and deformation. Replace if necessary.

1.

Boot clamp

2.

Inner socket

3.

Boot

4.

Boot clamp

5.

Outer socket

6.

Cylinder tubes

7.

Gear housing assembly

8.

Connector

AWGIA0139GB

August 2012

2012 Pathfinder

2012 Pathfinder

ST-32

< UNIT DISASSEMBLY AND ASSEMBLY >

STEERING GEAR AND LINKAGE

Gear Housing Assembly

Check gear housing assembly for dents, cracks or damage. Replace as an assembly if necessary.

Outer Socket and Inner Socket

SWING TORQUE

• Measure the swing torque, using Tool. When ball stud and inner

socket start moving the measured value must be within the specifi-

cation. If the reading is outside the specification, replace the

socket. Refer to

ST-34, "Steering Gear"

.

ROTATING TORQUE

• Measure the rotating torque, using Tool. If the value is outside the

specification, replace the outer sockets.

AXIAL END PLAY

• Apply a load of 490 N (50 kg-f, 110 lb-f) to the ball stud axially. Use

a dial gauge to measure the amount of the movement that the stud

makes. If the value is outside the specification, replace the sock-

ets.

ASSEMBLY

1. Install the inner sockets.

Tool number

:

—

(J-44372)

AWGIA0153ZZ

Item

Outer socket

Inner socket

Measuring point

Cotter pin hole of stud

Refer to

ST-34, "Steering Gear"

Swing torque

Refer to

ST-34, "Steering Gear"

Refer to

ST-34, "Steering Gear"

Measuring value

Refer to

ST-34, "Steering Gear"

Refer to

ST-34, "Steering Gear"

Tool number

: ST3127S000 (J-25765-A)

Outer socket
rotating torque

Refer to

ST-34, "Steering Gear"

.

WGIA0132E

Outer socket Refer to

ST-34, "Steering Gear"

.

Inner socket

Refer to

ST-34, "Steering Gear"

.

SGIA0057E

August 2012

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2012 Pathfinder

STEERING GEAR AND LINKAGE

ST-33

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2. Install the large-diameter side of the boots to the gear housing

assembly.

3. Install the small-diameter side of the boots to the groove of the

inner sockets.

4. Install the boot clamps to the boots, as shown.

CAUTION:

Do not reuse the large boot clamps.

5. Crimp the large boot clamps, using Tool.

6. Install the cylinder tubes to the gear housing assembly.
7. Install the lock nuts and outer sockets to the inner sockets.

8. Thread the outer sockets onto the inner sockets to the specified

length (L) and a minimum thread depth of 18 mm threads. Then

tighten the lock nuts to the specified torque. Refer to "Disassem-

bly and Assembly". Reconfirm that the tie-rod length (L) is within

specification.

SGIA0550E

AST139

Tool number : KV40107300 ( — )

RAC1133D

Maximum inner socket
length (L)

Refer to

ST-34, "Steering

Gear"

.

SGIA0167E

August 2012

2012 Pathfinder

2012 Pathfinder

ST-34

< SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Steering Wheel

INFOID:0000000007356591

Steering Column

INFOID:0000000007356592

Steering Gear

INFOID:0000000007356593

End play of the axle direction for steering wheel

0 mm (0 in)

Steering wheel turning force

39 N (4 kg-f, 9 lb-f) or less

Steering wheel play on the outer circumference

0

−

35 mm (0

−

1.38 in)

Steering column length

553.0 mm (21.77 in)

Tilt range (A)

18

°

- 21

°

of tilt range

AWGIA0147ZZ

WGIA0083E

Steering gear type

PR26AM

AWGIA0153ZZ

August 2012

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2012 Pathfinder

SERVICE DATA AND SPECIFICATIONS (SDS)

ST-35

< SERVICE DATA AND SPECIFICATIONS (SDS)

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Oil Pump

INFOID:0000000007356594

Steering Fluid

INFOID:0000000007356595

Outer socket

Swinging torque

0.3

−

2.9 N·m (0.03

−

0.29 kg-m, 3

−

25 in-lb)

Measurement on spring balance
• Measuring point: cotter pin hole of stud

4.84

−

46.7 N (0.50

−

4.7 kg-f, 4

−

34 lb-f)

Rotating torque

0.3

−

2.9 N·m (0.03

−

0.29 kg-m, 3

−

25 in-lb)

Axial end play

0.5 mm (0.020 in) or less

Inner socket

Swinging torque

1.0

−

7.8 N·m (0.11

−

0.79 kg-m, 9

−

69 in-lb)

Measurement on spring balance
• Measuring point: L mark see above,

L=84.0 mm (3.307 in) max.

12.1

−

93.7 N (1.3

−

9.5 kg-f, 9

−

69 lb-f)

Axial end play

0.2 mm (0.08 in) or less

Maximum inner socket length (L)

84.0 mm (3.31 in) max

Steering gear type

PR26AM

SGIA0167E

Rack sliding force

Standard

280

±

30 N (28.6

±

3.1 kg-f, 62.9

±

6.7 lb-f)

Minimum

210 N (21.4 kg-f, 47.2 lb-f)

Oil pump hydraulic relief pressure

VQ40DE engine

8.3 + 0.5 - 0.3 mPa (84.66 + 5.10 - 3.06 kg/cm

2

, 1203.5 + 72.5 - 43.5 psi)

VK56DE engine

9.3 + 0.5 - 0.3 mPa (94.86 + 5.10 - 3.06 kg/cm

2

, 1348.5 + 72.5 - 43.5 psi)

Fluid capacity

Approx. 1.0 (2 1/8 US pt, 1 3/4 Imp pt)

Fluid type

Refer to

MA-18, "FOR USA AND CANADA : Fluids and Lubricants"

for United States and Canada,

MA-20, "FOR MEXICO : Fluids and Lubricants"

for Mexico.

August 2012

2012 Pathfinder

2012 Pathfinder