Infiniti QX56 (JA60). Manual — part 551

FSU-10

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UPPER BALL JOINT AND LOWER BALL JOINT

UPPER BALL JOINT AND LOWER BALL JOINT

Inspection

INFOID:0000000005148110

• Check the ball joint for excessive play. Replace the upper or lower link assembly if any of the following

exists:

- Ball joint stud is worn.

- Ball joint is hard to swing.

- Ball joint play in axial directions or end play is excessive.

Swinging Force

NOTE:

Before checking the axial forces and end play, turn the lower ball joint at least 10 revolutions so that the ball

joint is properly broken in.
1. Measure the ball joint swinging force using a suitable tool.

• Measure at the cotter pin hole for upper ball joint as shown.

• Measure at the groove for lower ball joint as shown.

2. Verify the ball joint swinging force is within specification.

Turning Force

Check the turning torque using a suitable tool.

NOTE:

Before checking the axial forces and end play, turn the lower ball

joint at least 10 revolutions so that the ball joint is properly broken in.

Vertical End Play

Check dust cover for damage. Replace it and the cover clamp if necessary.

NOTE:

WEIA0076E

Swinging force (A)
Upper ball joint

: 8.1 - 103.2 N (0.8 - 10.5 kg-f,
1.8 - 23.2 lb-f)

Lower ball joint

: 11.4 - 145.5 N (1.1 - 14.8 kg-f,
2.5 - 32.7 lb-f)

SFA858A

Turning torque (B)

: 0.5 - 6.4 N·m (0.05 - 0.65 kg-m, 4
- 57 in-lb)

SFA858A

UPPER BALL JOINT AND LOWER BALL JOINT

FSU-11

< ON-VEHICLE MAINTENANCE >

C

D

F

G

H

I

J

K

L

M

A

B

FSU

N

O

P

Before checking the axial forces and end play, turn the lower ball

joint at least 10 revolutions so that the ball joint is properly broken in.

Vertical end play (C)

: 0 mm (0 in)

SFA858A

FSU-12

< ON-VEHICLE MAINTENANCE >

KNUCKLE

KNUCKLE

On-Vehicle Inspection and Service

INFOID:0000000005148111

Make sure the mounting conditions (looseness, backlash) of each component and component status (wear,

damage) are within specifications. Refer to

FSU-24, "Ball Joint"

.

FRONT SUSPENSION ASSEMBLY

FSU-13

< ON-VEHICLE REPAIR >

C

D

F

G

H

I

J

K

L

M

A

B

FSU

N

O

P

ON-VEHICLE REPAIR

FRONT SUSPENSION ASSEMBLY

Component

INFOID:0000000005148112

1.

Dust cover

2.

Shock absorber

3.

Upper link

4.

Steering knuckle

5.

Cotter pin

6.

Bolt

7.

Jounce bumper

8.

Washer

9.

Lower link

10. Stabilizer bar

11. Stabilizer bar bushing

12. Stabilizer bar mounting bracket

13. Connecting rod

14. Coil spring

15. Upper seat

16. Upper spring seat

17. Shock absorber bushing

18. Shock absorber mounting insulator

19. Spacer

20. Washer

Front

AWEIA0142GB