Before demolition bearing, should do the preparatory work of the bearing maintenance, the car came to a complete stop and set up the axle, in order to ensure the maintenance of the security of a job.
(1), remove the bearing head decorative cover, dust cover;
(2) Remove the wheel nuts and tire, be careful not to bruise the tire bolt threads. If the disc brakes, should remove the brake, and then for pliers remove the lock ring or locking pin.
(3) with a special tool to remove the bearings;
(4), scrape the bearing, journal and the bearing cavity old grease, cleaning agent bearing and journal and dried with a cloth, and finally wipe with a cloth bearing cavity.
(5) Check the bearings and bearing races, cracks, fatigue spalling and bearing roller loose phenomena such should replace the bearings. If pitting on the bearing race, should also replace the bearings.
(6), with the situation of the check the bearing inner diameter and the journal, with the gap should not be greater than 0.1Omm measurement journalled in the two upper and lower parts of the vertical ground (where the maximum wear portion) measurement. When combined with the clearance exceeds specified limits, replace the bearings, make it return to normal with the gap. Hit a glitch, pitting the journal is not allowed to narrow the gap.
(7), wait until all parts have to meet the requirements will be greased inner bearing release the bearing.
(8), the bearing cavity applicator the grease should note, should the grease squeeze bearing until the grease from coming out the other side of the bearing. Apply a thin layer of grease within the bearing cavity axis bonnet, to play the role of anti-rust. Note that the bearing cavity grease smear too much, otherwise it will affect the cooling and braking.
(9), the bearing and outer bearing back onto the journal axis head adjustment nut by hand, and then the required torque shaft wrench tighten the adjusting nut. Tighten the nut, turning left and right bearing a few laps to see if the bearing installation; On the other hand, by turning the bearing with the seat correctly. The bearing tightness appropriate, the wheels rotate freely and feel no axial gap.
(10), the final order to install the locking plate fixed nut, tires, dust cover and decorative cover and other parts.
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