Hyundai Sonata LF: Front Axle Assembly / Front Hub - Axle Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Driveshaft and axle / Front Axle Assembly / Front Hub - Axle Repair procedures

Replacement
Front hub assembly
1.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the wheel cap (A).

   
Be careful not to damage to the wheel cap (A) when removing the it.
3.
Remove the front wheel and tire (A) from front hub.
Tightening torque :
88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft)

   
Be careful not to damage to the hub bolts when removing the front wheel and tire (A).
4.
Remove the brake caliper mounting bolts, and then place the brake caliper assembly (A) with wire.
Tightening torque :
78.5 ~ 98.1 N.m (8.0 ~ 10.0 kgf.m, 57.9 ~ 72.3 lb-ft)

5.
Remove driveshaft nut (A) from the front hub under applying the brake.
Tightening torque :
274.6 ~ 294.2 N.m (28.0 ~ 30.0 kgf.m, 202.5 ~ 217.1 lb-ft)

   
•
The front hub coking nut should be replaced with new ones.
•
After installation coking nut (A), stake the coking nut using a chisel and hammer as shown in the illustration below.

6.
Loosen the front brake disc mount screw and then remove the front brake disc (A).
Tightening torque :
4.9 ~ 5.8 N.m (0.5 ~ 0.6 kgf.m, 3.6 ~ 4.3 lb-ft)

7.
Loosen the bolt (A) and then remove the hub bearing (A).
Tightening torque :
78.5 ~ 98.1 N.m (8.0 ~ 10.0 kgf.m, 57.9 ~ 72.3 lb-ft)

8.
Install in the reverse order of removal.
Front axle assembly
1.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the wheel cap (A).

   
Be careful not to damage to the wheel cap (A) when removing the it.
3.
Remove the front wheel and tire (A) from front hub.
Tightening torque :
88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft)

   
Be careful not to damage to the hub bolts when removing the front wheel and tire (A).
4.
Remove the brake caliper mounting bolts, and then place the brake caliper assembly (A) with wire.
Tightening torque :
78.5 ~ 98.1 N.m (8.0 ~ 10.0 kgf.m, 57.9 ~ 72.3 lb-ft)

5.
Remove driveshaft nut (A) from the front hub under applying the brake.
Tightening torque :
274.6 ~ 294.2 N.m (28.0 ~ 30.0 kgf.m, 202.5 ~ 217.1 lb-ft)

   
•
The front hub coking nut should be replaced with new ones.
•
After installation coking nut (A), stake the coking nut using a chisel and hammer as shown in the illustration below.

6.
Loosen the front brake disc mount screw and then remove the front brake disc (A).
Tightening torque :
4.9 ~ 5.8 N.m (0.5 ~ 0.6 kgf.m, 3.6 ~ 4.3 lb-ft)

7.
Remove the tie rod end ball joint (C) from the knuckle.
(1)
Remove the split pin (A).
(2)
Remove the castle nut (B).
Tightening torque :
34.3 ~ 44.0 N.m (3.5 ~ 4.5 kgf.m, 25.3 ~ 32.5 lb-ft)

8.
Loosen the mount bolt and then remove the wheel speed sensor (A) from knuckle.
Tightening torque :
8.8 ~ 13.7 N.m(0.9 ~ 1.4 kgf.m, 6.5 ~ 10.1 lb-ft)

9.
Loosen the lower arm mounting and then remove the lower arm (A).
(1)
Remove the split pin (B).
(2)
Loosen the mounting nut and bolt.
Tightening torque :
98.1 ~ 117.7 N.m (10.0 ~ 12.0 kgf.m, 72.3 ~ 86.8 lb-ft)

10.
Disconnect the driveshaft (A) from the front hub assembly.

11.
Loosen the strut mount bolts and then remove the knuckle assembly (A).
Tightening torque :
137.3 ~ 156.9 N.m (14.0 ~ 16.0 kgf.m, 101.3 ~ 115.7 lb-ft)

12.
Install in the reverse order of removal..488.3
Disassembly
1.
Loosen the hub mounting bolt and remove the hub assembly from the axle.
Tightening torque :
78.5 ~ 98.1 N.m (8.0 ~ 10.0 kgf.m, 57.9 ~ 72.3 lb-ft)

2.
Loosen the dust cover monuting bolts (A) and then remove the dust cover from the axle.
Tightening torque :
6.8 ~ 10.7 N.m (0.7 ~ 1.1 kgf.m, 5.0 ~ 7.9 lb-ft)

3.
Reassembly in the reverse order of disassembly.
Inspection
1.
Check the hub for cracks and the splines for wear.
2.
Check the brake disc for scoring and damage.
3.
Check the knuckle for cracks.
4.
Check the bearing for cracks or damage.

    Front Hub - Axle Components and Components Location

    C..

    Driveshaft Assembly

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