Camper Trailers Tech Tips

axle inspection



axle inspection

I'm not saying that broken axles are a common event on camper trailers, but I would like to draw your attention to something that could happen & can easily be avoided with a proper check.

This check should be included as part of your regular maintenance schedule & could well prevent a stranding on the side of the track in the middle of nowhere or a serious accident on the highway.

It doesn't matter what type of suspension you have, all types of suspension have been known to break.

Always think safety first & never climb under your camper trailer when it is supported on stands alone.

safe jacking

1 park the trailer on firm level ground.
2 block the trailer tires on the opposite side securely so that no forward or rearward movement is possible.
3 jack up the trailer following the manufacturers instructions.
4 secure the trailer on jack stands of adequate capacity front and rear.
5 undo the wheel nuts & remove the wheel.

removing wheel & hub

Please refer to servicing wheel bearings for the procedure to remove the wheel & hub.

axle inspection

The area in question is where a 'step' has been machined on the stub to receive the wheel bearings. This is the most likely place for a fracture to occur, however it is also important that you check all machined steps on the stub.

The fracture usually starts on the bottom so it is often not seen until it is too late. Pay particular attention to all underneath areas of machined 'steps'.

Another area may also be where the 'weld ring' is welded if you have brakes on your trailer. You will have to remove the backing plate to get a better look at this suspect area, usually four or six bolts, but it will be well worth the effect.

Best way to feel a crack in a machined surface is by running your finger nail over the area. Not be afraid to get your magnifying glass out to be sure. An axle failure at highway speeds in not much fun.





by Rob