Service Training
Section 4.4
Page 7
4.4.4.1 RENEWING THE WHEEL BEARINGS
- Jack up the truck.
- Remove the wheel.
- Remove the cap (8).
- Drive out the cotter pin (7).
- Loosen and remove the 55 mm nut (6).
- Drive out the wheel hub (1) out from the inside with a plastic hammer.
- Renew the outer bearing ring of taper roller bearings (2) and (5) and also the shaft seal (3).
- Pull the taper roller bearing (2) from the knuckle (4) and renew it.
- Fill the wheel bearing chambers around the taper roller bearing with grease (as illustrated).
- Position the wheel hub on the knuckle and drive on the bearing (5). Put the thrust washer (9) in place,
fit the screw (6) and tighten it to 150 Nm.
- Turn the screw back to the nearest cotter pin hole and secure with a cotter pin.
- Fill the cap (8) with lithium-based grease (Part No. 733 740 0160), place it on the wheel hub and secure
by tapping it with a plastic hammer.
WHEEL HUB
1 Wheel hub
2 Inner taper roller bearing
3 Shaft seal
4 Knuckle
5 Outer taper roller bearing
6 Crown nut
7 Cotter pin
8Cap
9 Thrust washer
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