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Replacing the front hub bearing
NOTES Bearings recommended to change on both sides of the vehicle simultaneously. When replacing bearings it is destroyed and can not be reused. |
Set to stand front of the car, remove the wheel. Remove the two screws on the brake caliper, remove it without disconnecting the brake hose and secure in the wheel arch.
| Fig. 5.9. Backing Extrusion wheel bearing A - Tool for pulling out of the hub; B - Tool for removing and installing hub bearing; B - Tool for fitting cuffs
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If your car is equipped with anti-lock braking system (ABS), loose wire gauge and remove the gauge. Lock the rotation of the wheel hub. Remove the cotter pin and loosen the lock nut nut hub. Remove the nut ball joint tie rod to the steering knuckle with special tool, remove the hinge pin from the steering knuckle. Loosen the nut of the lower ball joint and with the help of a stripper remove the hinge pin from the steering knuckle. Remove the brake disc. Remove the two screws strut front suspension to the steering knuckle and remove the knuckle assembly to the hub. Xpress with a mandrel (Fig. 5.9, a) hub from the knuckle. Using a stripper gripper for external engagement, remove the hub bearing inner ring. A thin screwdriver to remove the bearing sleeve. Remove a lock ring of the bearing. Press out with a mandrel (Fig. 5.9, b) the outer ring of the bearing from the steering knuckle. Before installing the new bearing, thoroughly clean the hub and bearing seat in swivel. Check the technical condition of the working surfaces - they should not be signs of wear and tear. Apply a thin layer of grease on the outer ring of the new bearing.
| Fig. 5.10. Pressing the bearing in the knuckle 1 - mandrel; 2 - wheel bearing; 3 - knuckle; 4 - Stand
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With the help of the press and the press in the mandrel to lock the bearing in the knuckle, resting on the outer ring of the bearing (Fig. 5.10).
| Fig. 5.11. Pressing hub into the knuckle 1 - mandrel; 2 - wheel bearing; 3 - knuckle; 4 - Stand; 5 - wheel hub; 6 - outer sleeve; 7 - inner cuff
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Replace the retaining ring. Press in the outer first, then the inner sleeve bearing with a mandrel (Fig. 5.9, B), causing a pre-layer of grease on the edge of the cuff. Put the emphasis under the inner bearing ring and using a press in the press in the hub knuckle (Fig. 5.11). The rest of the operations are performed in reverse order, replace all self-locking nuts and cotter pins securing the hub locknuts. Observe the specified tightening torques of threaded connections. After the end of the assembly, check and if necessary adjust the angles of the front wheels.
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