Originally Posted by Neal
..When you say adjust them could you give some more details please.
I did, in post #9!
Once i take them appart does that break a seal to stop them going back.
No, you don't break a seal.
I dont mind spending the money on new but want to learn from this.
I like your attitude...
Before you start, find a container of some description to put the parts into. An old margarine or ice cream tub does nicely. You'll need a roll of kitchen towel and/or a pile of rags. Pre rip it into separate towels. You'll also need a replacement split pin and hub grease as a minimum.
1 slacken the wheel nuts.
2 jack up the trailer and rest it on an axle stand.
3 remove the wheel nuts and the wheel.
4 lever off/tap off the black cover from the end of the hub.
5 bend the ends of the splitpin as straight as possible and remove it. Wipe it clean and place it into your tub so as not to loose it. You're going to do this with everything else too.
6 unscrew the large nut and store it.
7 remove the thrust washer.
8 remove the outer bearing race.
9 remove the hub by pulling it straight off the stub axle.
10 clear out the grease from the hub. If you use your finger, be careful, there are sharp edges in there.
Now is the time to judge whether you need to replace the bearings. Rinse the outer race in a solvent - white spirit or something similar- and wipe clean. Look at the rollers for signs of rust or pitting. The outer part of the bearing is still in the hub. Look at this for similar damage. There will be slight marking where the surfaces have been running together but they should be smooth. If there is any sign of damage, replacement is the solution.
Now, the rear bearing can't be inspected without removing the grease seal. However, if the first bearing is good and the grease shows no sign of water ingress then it is worth leaving the bearing and seal in place and testing it. Do this by laying the hub onto its studs, put two fingers through the seal and press them onto the bearing. Rotate the bearing by hand feeling for any roughness as you go. Get the bearing turned a couple of times to settle it before you decide. It should feel smooth with no roughness or catching.
I'm going to have to leave this cos I've got an appointment but I'll come back and complete it later....