In this article, we will look at how to remove the axle shaft, replace and adjust the rear wheel bearings
Removing the rear wheel drive axle
Preparing the car for the task.
We install the car on a lift or a viewing ditch.
Loosen the bolts of the rear wheels on the side to be performed
Jacking the rear wheels on the side to be performed.
Unscrew and remove the wheels from the side being performed
You don't have to remove the wheels to remove the axle shaft. But it is better to remove it for the convenience of removing the axle shaft.
Using a 19 head, we unscrew the eight bolts securing the axle shaft to the wheel hub
With light blows of a hammer on the flange of the axle shaft, we move it from place
We place a container under the hub for draining oil from the axle shaft and pull out the axle shaft
Install the half shaft in reverse order. It is advisable to lubricate the cardboard gasket with sealant
Tighten the axle shaft bolts with a torque of 90-125 Nm. We check and, if necessary, restore the oil level in the rear axle housing (article - Checking and changing the oil in the gearbox and rear axle GAZelle Next)
Replacing wheel bearings and axle shaft seals
Release the handbrake by placing stops under the front wheels.
Remove the rear wheels from one side of the car.
We take out the axle shaft, as described above.
We unscrew the three screws securing the brake drum (if available, you can use an impact screwdriver)
Remove the brake drum
Unscrew the locknut with a special key from the standard "62" set
Remove the locknut from the hub.
We remove the lock washer by prying it with a hook or two screwdrivers
Unscrew the bearing nut with the same head and remove it.
Note that it is installed with the pin facing out.
Pulling it towards you, remove the hub with bearings and cuff from the axle housing
Remove the inner ring of the outer roller bearing.
Use a screwdriver to remove and remove the cuff
Remove the thrust washer.
Remove the inner ring of another bearing with rollers.
With a soft metal drift, we knock out the outer rings of the outer and inner bearings
We wash the inner cavity of the hub and other parts with kerosene or diesel fuel.
Lubricate the bearing seats with gear oil.
By hammer blows through the soft gasket, we press in the outer rings of the new bearings.
We lubricate the rollers and the separator of the inner bearing with Litol-24 and put its inner ring into the outer one.
After installing the thrust washer, lubricating the edges of the new cuff with Litol-24, using the old cuff as a mandrel, we press in the new cuff
We put the hub on the axle housing, after which we install the inner ring with the outer bearing rollers lubricated with Litol-24.
We turn the adjusting nut and adjust the bearings.
We install the axle shaft, then fill the wheel hub with oil (see Checking and changing the oil in the gearbox and rear axle GAZelle Next).
Wheel bearing adjustment
Jacking the rear axle of the car until the wheels are off the ground.
Remove the wheels.
Remove the axle shaft.
Unscrew the outer nut, remove the lock washer and loosen the bearing nut by ⅓ of a turn.
Checking the ease of rotation of the hub.
If the brake pads touch the drums, we eliminate this malfunction, and then repeat the adjustment.
We tighten the bearing nut with a special head from the standard set with a torque of 7–10 kgf.m, constantly rotating the hub to self-align the rollers in the bearings.
Unscrew the bearing nut at an angle of 22–45° (1–2 slots on the lock washer, no more).
Install the lock washer so that the locking pin of the nut fits into its slot.
We install and tighten the outer nut with a torque of 15–20 kgf.m with the same head.
After that, the hub should rotate Xia freely without play, clicks and jams.
Install the remaining parts in reverse order and fill the hub with oil
We check the adjustment after driving about 10 km.
Heating the hub above 70 ° C (the hand does not tolerate) is considered unacceptable.
Repeat the adjustment, then recheck the hub temperature after the same run.