Austausch der Radnaben bei einem LKW – The Parts Specialists

Austausch der Radnaben bei einem LKW – The Parts Specialists


Hi! It’s great that you’ve joined us again! Today we’re talking about wheel hubs. Today we’re going to give you important information and details about how you can avoid premature failure of your wheel hubs. Yeah, here we have the culprit. It’s this wheel hub on the left side that we want to renew today. Björn is already down in the pit and is raising the vehicle up, jacking it up so the necessary safety is ensured. Yeah, then let’s get started! I’m going to take off this wheel nuts and Lars is now going to remove the mudguard cover. Yes, no problem. We now have the wheels down, so now it’s on to the brake cylinders, the brake blocks, brake calliper bracket and the drive axle. Out the way now, we want to get started here. It’s very important to note that this vehicle, as is the case with almost all trucks, is equipped with a differential lock. This must be inserted before the drive shafts are pulled out to ensure the differential lock doesn’t drop down. Then we have to loosen the hub axle nut and take down the wheel hub. The important thing here is not to damage the thread. Do yourself a favour, use two people to take the wheel hub out and ensure that the threads remain intact. For our task we need a new wheel hub, brake disc, brake block, wheel bolts, wheel nuts and the ABS ring. The ABS sensor on this vehicle is also stiff, so we need the ABS sensor guide and the ABS sensor itself to carry out this repair work. Before we install the new parts, the most important thing is cleanliness. So, clean, clean, clean… Here is the new wheel hub in modified form; here is the old version. The modification has been made to the ventilation of the wheel hub, in the form of ventilation slits for better cooling of the bearings. Yes, and additionally we have here a vent valve, which sits on the axle. It is important that this is changed out, otherwise pressure can build up on the wheel hub, which can lead to leakages. Slowly over… We have now completed the new wheel hub with the individual components and when attaching to the axle, a suitable lifting implement must be taken in order to avoid damage to the axle, thread and bearing. We have now changed the relief valve on the axle and have tightened the brake disc with the corresponding torque. Now, it’s still important for us to also tighten the hub axle nut with the corresponding tightening torque, and then we’re finished with wheel hub itself. So, we still have to be aware of the mobility of the brake calliper, which can be effected by shifting the guide back and forth. If the cuffs are damaged or the guide becomes stiff, we have of course also repair kits, which you can use to mend the brake calliper. The important thing with the drive flange is to ensure you coat the surfaces with the appropriate surface sealant, so as to avoid leakages. So, we have now completely changed the wheel hub on the left-hand side. We’re now re-tightening the wheels. We’ll get on to the right-hand side now, and then after we’ve changed the right-side wheel hub we’ll change the oil of the rear axle and take another final test drive. It’s important to check the wheel bearing play again after the test drive, so as to avoid damage to the wheel bearings. You’ll find this and other vital tips to refer to in our assembly instructions. So, now you know how it’s done. Bye! Until next time! Yeah, take care till then!

About the Author: Michael Flood

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