Bit by bit guidelines
Securely raising the trailer
Park the trailer on firm and level ground.
Block the trailer tires on the contrary side safely so that no forward or aft development is conceivable.
Raise the trailer adhering to the makers guidelines.
Secure the trailer bearing manufacturers jack stands of satisfactory limit front and back.
Eliminate the haggle
Fix the wheel nuts and eliminate the wheel
Pry off the residue cap utilizing a level bladed screwdriver
Fix the cotter pin that holds the bearing nut and eliminate it
Eliminate the bearing nut and washer
Tenderly force the brake drum forward while measuring the center opening with your hand to hold the front bearing back from tumbling to the ground. The external race stays in the drum, while the internal race and roller direction emerge as a gathered unit.
Place the front bearing, bearing nut and the bearing washer in a spotless compartment
Eliminate the oil seal and inward bearing
Place the brake drum face down with the goal that the rear of the drum is open
Pry out the oil seal. This will be supplanted in a further step.
Lift out the back bearing and spot it in the compartment with the other parts
Try not to stir up the direction assuming that you are doing more that each wheel in turn – each bearing should mate with its unique race (no bias expected). The course wear in by a specific sum and should be coordinated with their particular partners.
Clean and review the heading and races
Completely perfect the orientation and different parts in a dissolvable (not gas!) until everything the old oil is taken out. Put the aside to dry totally or blow dry with compacted air. Try not to utilize the gaseous tension to turn the bearing, as harm could result to the bearing or to your individual!
Clean the center point and shaft.
Examine the bearing races for heat staining, pitting, scoring and any lopsidedness.
Examine the bearing for harm as above. Any out of round rollers, broke roller enclosures and harsh running will show substitution is required.
The bearing and both inward and external races should be supplanted as a set.
Review the brake drum for pitting and extreme wear particularly on the off chance that the brake shoes were permitted to wear out to uncovered metal.
Review the brake magnet surface for inordinate or lopsided wear.
On the off chance that the brake drum and magnet have been immersed with oil from a bombed seal, supplant the shoes and magnet, and have the drum turned or machined to recharge the surfaces.
Hand pressing the orientation
Place a pecan estimated gob of wheel bearing oil in one palm.
Handle the holding on for the other hand so the more extensive end is confronting the oil.
What you believe should do is force the oil into the hole between the internal race and the external enclosure so it presses up through the rollers and out the top.
Press the pushing ahead into the oil in a shaking movement and go on until the oil overflows up.
Pivot the bearing 1/4 turn, at an at once, until the bearing is totally loaded up with oil.
Or then again utilize an economical bearing packer – there are some that you use with an oil firearm loaded up with wheel bearing oil and different sorts that you drop the bearing into and apply hand or foot strain to compel the oil through the bearing
Reassembly
Put some oil into the inside of the center point with your fingers. A pecan measured sum is adequate. Spread it around the circuit of the center.
Place the inward pressed bearing into its spot in the center point.
Put another seal on the center and tap it into place with a sledge until it situates completely.
Make certain to clear off any oil that tracks down its direction onto the external level surface of seal.
Supplant the drum onto the hub shaft, embed the external bearing, push washer and pivot nut.
Preload the bearing
Fix the hub nut by hand until it is tight. Fix another 1/4 turn with pincers or wrench.
Turn the drum a few times to disperse the oil equally in the direction.
Ease off the nut with the pincers or wrench, until free and afterward re-fix finger tight.
Embed another cotter pin to secure the nut and curve it over the shaft.
Re-introduce the residue cap, haggle, and hubcap.
This present time is a generally excellent opportunity to change the brakes. See my article Changing RV Brakes for more data.
Wash hands vivaciously for 15 minutes!
Supplanting an orientation The bearing should be supplanted with a total new holding on for the inward and external races.
The internal races are squeezed into place in the center and should be driven out.
Utilize a metal punch to get the edge of the race by going it through the rearranged center. A couple of good whacks with a mallet ought to drive out the old race.
Place the new race into position and tap it in with the mallet and punch. Take care not to damage the outer layer of the race.
Pack, reassemble and preload the bearing as above.
Les Doll – Ensured RV Professional
