
The best bet is to pull the plug and fill it to just below centerline of the axle. Use a good 90 wt oil and it will be fine. A little seep by the plug is not bad.
What is the proper gear oil to put in my axle?
What is the proper gear oil to put in my 9,000 lb. oil bath axle. I recommend the Kodiak Synthetic Bearing Oil for Oil Bath Hubs - 8 oz Bottle # XLPROLUBE. It is a 90 weight synthetic oil. Dexter bought out Kodiak so this meets their specifications.
How do you fill up the oil in your trailer?
Best thing to do is jack the trailer up and put it on stands. Open up the caps and spin them around so they're pointing down so they'll drain. Then come back the next day to fill them up approx half way. It takes a LONG time to get the oil in that tiny hole, so be sure to give yourself plenty of time to do this project.
What to do if your drive axle is leaking oil?
Inspect for hub oil leaking from the inner seal onto the brakes and inner tire sidewall. Add STP to slow the leaks until you can get repairs. Drive axle seals will also leak onto the inner sidewalls but the source of wheel bearing lubrication is the drive axle itself. Keep the drive axle full to prevent the bearings from running dry.
How do you keep oil from leaking out of the hub?
Each hub has a rear (inner) seal which keeps oil from leaking out of the back of the hub. The spring-loaded seals used on your axle are the best available for the application. The axle spindles are equipped with permanent, polished stainless steel seal surfaces for the seals to rotate.

How do I add oil to my axle?
0:132:08Ford How to Add Gear Oil In The Rear Axle - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf you're gonna change the fluid there should be a drain plug on the bottom that you're gonna pullMoreIf you're gonna change the fluid there should be a drain plug on the bottom that you're gonna pull and drop some of them are on the front plate some are on the back plate.
How do you add oil to trailer hubs?
1:082:51How To Change Hub Oil on Trailers Hub oil change - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd make sure it's still in good condition. And if it is well then go ahead and continue putting onMoreAnd make sure it's still in good condition. And if it is well then go ahead and continue putting on the oil cap. And we'll move. On. Once this is fully tightened.
How do you check the oil in a trailer axle?
0:050:51QG - Checking Your Hub Oil - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou will need to see if the oil level is sitting flat and touching the full line. If the oil isMoreYou will need to see if the oil level is sitting flat and touching the full line. If the oil is touching the full line then it is properly filled if the top of the oil level is touching the ad line.
What kind of oil goes in a trailer axle?
oil bath axle. Expert Reply: I recommend the Kodiak Synthetic Bearing Oil for Oil Bath Hubs - 8 oz Bottle # XLPROLUBE. It is a 90 weight synthetic oil.
How much oil does a trailer hub take?
Mine took about 3/4 of a quart per side. Fill up slowly, then give it a couple of minutes for air bubbles to make it out and top it off. The trailer buddy manual includes instructions for maintenance and calls for SAE 50 oil.
How often should you change trailer Hub oil?
The common recommendation with oil bath hubs is to not mess with them at all as long as they aren't leaking or the oil isn't milky looking. Some say to change every two years but most will say that as long as everything looks good just leave it be. Also 50 weight gear oil is recommended.
How full do you fill oil bath hubs?
Jack up the tire and position the plug on the hub on top. Note where the oil level is, usually about 1/2 to 3/4 full.
Is oil bath better than grease?
The main reason people like oil bath hubs over grease hubs is the oil bath hubs have a less involved maintenance schedule than grease hubs. It is recommended to inspect and repack grease wheel bearings and seals every 12k miles. With oil bath hubs, Dexter recommends to periodically check and refill when necessary.
What oil goes in oil bath hubs?
0:204:07etrailer | Kodiak Synthetic Bearing Oil for Oil Bath Hubs Review - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo you can pry free the cap on our oil bathtubs. So the biggest question you're probably wonderingMoreSo you can pry free the cap on our oil bathtubs. So the biggest question you're probably wondering is how much you need. And that's going to be based on how many axles. And how many hubs we have now
How do you maintain oil bath axles?
0:444:11Which is better? Oil Bath #versus Grease - YouTubeYouTubeStart of suggested clipEnd of suggested clipMaintenance is amazingly simple on these axles literally unscrew the cap and drain the oil out. PutMoreMaintenance is amazingly simple on these axles literally unscrew the cap and drain the oil out. Put it back on and then fill up the reservoir.
How full do you fill oil bath hubs?
Jack up the tire and position the plug on the hub on top. Note where the oil level is, usually about 1/2 to 3/4 full.
How do you fill a bathroom trailer with oil hubs?
1:134:07etrailer | Kodiak Synthetic Bearing Oil for Oil Bath Hubs Review - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd then we're going to gently squirt it in our oil. While we're turning our hub at the same time.MoreAnd then we're going to gently squirt it in our oil. While we're turning our hub at the same time. And we don't want to make big squirts. I just want to slowly let it out as a rotating the hub.
How do you fill vault hubs?
Hub cavity is full when the HYBRID-OIL lubricant first appears around edge of spindle washer. Remove grease fitting. Fill a new VAULT protector cap (Do Not reuse old cap) with HYBRID- OIL lubricant.
Is oil bath better than grease?
The main reason people like oil bath hubs over grease hubs is the oil bath hubs have a less involved maintenance schedule than grease hubs. It is recommended to inspect and repack grease wheel bearings and seals every 12k miles. With oil bath hubs, Dexter recommends to periodically check and refill when necessary.
Do you dip threads in high heat sealant?
And yes, dip the threads in high-heat sealant before reinstalling. Otherwise it will leak everywhere.
Can you put 50 wt oil in a trailer?
And yes, it's 50 w t. Any kind will do. Best thing to do is jack the trailer up and put it on stands. Open up the caps and spin them around so they're pointing down so they'll drain. Then come back the next day to fill them up approx half way. It takes a LONG time to get the oil in that tiny hole, so be sure to give yourself plenty of time to do this project.
Can grease leak from wheel seals?
You need to regularly inspect the backside of your wheels for blown wheel seals. Grease won't leak as bad as oil when a seal fails. Oil will soak brake linings in addition to the danger of wheel loss due to the loss of oil. Drain tip: A hair dryer on 'high' heat setting aimed at the hub helps speed up drain time.
Is an oil bath bearing full?
Some "oil bath" bearings are COMPLETELY FULL others are HALF or MORE FULL, so make sure you consult with your boat manufacture, trailer manufacture, or bearing manufacturer. I have a Ranger that uses the Cool Hub system with a viewing window, my particular bearing requires that the ENTIRE bearing be filled up.
Do trailer bearings need oil?
I've never heard of trailer bearings that use oil. Unless you have some sort of exotic "Ferrari" type of trailer, you need to pack the bearings with a marine grade grease. Do a search on these forums for trailer bearings and you will find a wealth of information. Good luck!
How to bathe bearings in oil?
Rotate the hub by hand four to five complete turns to fully bathe the bearings in oil and to work any air bubbles to the top of the hub. Recheck the level in the hub window; if all you see is oil, hub maintenance is complete.
Where is oil level 4 on threaded hole?
The Oil level (4) should be visible at the bottom of the threaded hole.
Can you change oil in cool hubs?
Changing the oil in cool hubs can be an intimidating task for someone not comfortable with performing vehicle type maintenance. Hopefully these instructions and photos provide the confidence for anglers to perform their own cool hub maintenance and fluid change and save a few dollars to buy lures.
Do you need to replace the hub seal on a tire?
Don’t forget about the hubs; periodically look behind the tire at the back of the hub seal surface for evidence of leaking. Some “seepage” over time is normal. But if it is wet, dripping or slinging oil to the inside of the tire, the seal needs replaced. I will cover seal replacement in another article (watch for it very soon).
What is the purpose of oil in a hub?
The oil in the hub....just like the oil in the trans, and the differentials...not only serve to lubricate moving parts....It also helps to dissipate the heat generated since even though lubricated....there is still friction generated ....
How to check for hub oil leaks?
Inspect for hub oil leaking from the inner seal onto the brakes and inner tire sidewall. Add STP to slow the leaks until you can get repairs. Drive axle seals will also leak onto the inner sidewalls but the source of wheel bearing lubrication is the drive axle itself.
Do trailers have grease bearings?
Some trailers have grease packed bearings. Their caps will be solid with no plug, nothing to check until the wheel needs to come off.
How to tow a trailer?
As a minimum general rule, before towing any trailer, make sure to at least check the following items on the trailer: 1 Check cold tire pressures. Improperly inflated tires can cause catastrophic tire failure 2 Verify that the trailer is level to the ground with both the trailer and tow vehicle loaded with gear. 3 Make sure your wheel lug nuts are tight. Wheel lug nuts should be tightened to a specific torque using a torque wrench (see your owners manual). Never use an impact wrench to tighten lug nuts. 4 Be sure the coupler is secured. As insurance, insert the safety hitch pin or another locking device into the hole in the coupler to be sure it is properly latched and won’t accidentally pop open. 5 Be sure the trailer jack is raised and locked in place. Check that the trailer wiring is correctly hooked up and working. 6 Be sure the safety chains (or cables) and emergency brake cable (if equipped) are in place and properly secured so that they won’t fall off.
How often should you check bearings on a trailer?
To assure your bearings are in good working order, we suggest you check your bearing adjustment at least once a year by following this procedure. Jack up on the side of the trailer (make sure you use jack stands and chock the trailer wheels to keep the trailer from moving).
How to replace a nut retainer?
To replace the nut retainer, find a position where it will fit over the spindle nut at so that the cotter pin can be inserted without having to loosen or tighten the nut. Insert a new cotter pin. Recheck end-play. Spread the ends of the cotter pin to keep it in place.
Can Pacific Trailers replace parts?
Please contact Pacific Trailers for certified replacement parts. Although some parts look identical or have the same description, they may not have the quality or dimensional tolerances needed to assure trouble free operation and optimum performance.
Is it normal to have oil seepage on the rear wiper?
A slight amount of oil seepage at the rear seal is normal and necessary to lubricate the wiper lip of the seal for long life and sealing contaminants out. If excessive leakage is occurring, contact UFP for instructions.
