Remove front wheel.
Attach the brake disc to the hub with two wheel bolts.
Without damaging the lining surface, move the brake pads away from the brake disc.
Remove the hub cap using an impact puller as shown in fig. 214.
Pic. 214. Removing the hub cap using an impact puller.
1 - front wheel hub,
2 - puller,
3 - trunnion.
Remove the spring contact to eliminate radio interference.
Loosen the hexagon socket bolt on the split nut (2) pic. 215 and, turning the hub, tighten the split nut.
Pic. 215. Adjusting the axial clearance of the hub bearings.
1 - front wheel hub,
2 - split nut,
3 - trunnion,
4 - support washer.
From this position, unscrew the split nut by ⅓ of a turn and a few blows of a hammer with a plastic head on the trunnion (3) relieve tension in the bearing rollers.
Install the indicator on the hub as shown in fig. 216, move the indicator tip by 2 mm.
Pic. 216. Measurement of axial clearance in the front hub bearings.
1 - indicator stand,
2 - split nut,
3 - washer,
4 - front wheel hub.
By pressing with force on the hub in two directions, measure the axial clearance. Rotate the hub several times between measurements.
Tighten the split nut bolt to 12 Nm and re-measure the axial clearance in the bearings. With the axial clearance properly adjusted, the washer located between the outer roller bearing and the slotted nut can be turned with a finger. Adjustment of the axial clearance in the hub bearings must always be carried out using an indicator only.
Install a spring contact to eliminate radio interference.
Before punching, fill the hub cap with the required lubricant and press it into the hub using a tool.
Install the front wheels and put the car on wheels.