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Old 07-25-2014, 10:26 PM   #15
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Lubricating the Dexter E-Z Lube Axle by Bug Smacker - YouTube
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Old 07-26-2014, 01:14 PM   #16
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The main problem with the zerk fittings is that most people figure if 2 or 3 pumps are good then 10 or 15 will be better. It isn't. More damage will be caused by over greasing.
I don't carry a separate jack for my trailer. I use the screw jack from my Ford truck and place it under the springs. The head of the jack is surrounded by the 4 nuts and it won't slip off. If you jack on the frame you need to jack up the side of the trailer a Loooong way. If you jack on the spring plate you need to go up maybe 2 or 3 inches.
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Old 07-26-2014, 01:40 PM   #17
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Before going on the trip he has planned, I agree he should have a jack. In his situation I would hookup and tow it to the nearest good brake shop. And repack. Here is the consequence of using the zerk should the grease follow one path of least resistance, i.e a seal that offers less resistance than the needed path going through all the bearing interstices.

Bob
AAAANNNDDD there is a new brake asy. and why pumping grease is no replacement to a correct bearing repack.
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Old 07-26-2014, 03:43 PM   #18
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OK, I don't want to greeze my brakes but Dexter says if the seals are good and you use the correct grease with a hand lube pump and don't go nuts the system should work. But, if I decide to correctly clean and hand pack the bearings with top quality grease and I don't drive through or store my TT in a river, say about 5,000 miles a year on them. Do I really need to do a re-pack every year? I am thinking more like every 3 years. That would be about 15K miles and should be no issue. maybe I am missing something that demands every year.
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Old 07-26-2014, 04:01 PM   #19
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OK, I don't want to greeze my brakes but Dexter says if the seals are good and you use the correct grease with a hand lube pump and don't go nuts the system should work. But, if I decide to correctly clean and hand pack the bearings with top quality grease and I don't drive through or store my TT in a river, say about 5,000 miles a year on them. Do I really need to do a re-pack every year? I am thinking more like every 3 years. That would be about 15K miles and should be no issue. maybe I am missing something that demands every year.
Just a thought. The idea is to keep the rollers in the bearing engorged in grease as much as possible, because that's what lubricates the surface between the races and the rollers. The grease that remains against the rollers looses it's lubricating capacity over time and use due to many factors, including heat. Not hot enough to seize the bearing, but hot enough to degrade the grease, even high temp disc brake quality. Got to think about the diameter of the roller and how many revs it makes in 5,000 miles. So repacking resupplies those rollers with grease with lubricating qualities.

A solution is oil bath bearings and seals as it keeps the lubricant where it needs to be all the time. Problem is for TT, 5ers, not sure there is a good system available.

Also after 3 years the end play on the wheel bearing assembly, inner and outer, will be greater than if adjusted every year in a wheel bearing repack.

Not an expert, just trying to help.
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Old 07-26-2014, 04:20 PM   #20
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How often does everyone repack the bearings on your tow vehicle?
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Old 07-26-2014, 04:30 PM   #21
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How often does everyone repack the bearings on your tow vehicle?
My recommendation is check your manufacturers warranty/owners manual and follow it.
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Old 07-26-2014, 05:53 PM   #22
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How often does everyone repack the bearings on your tow vehicle?
Good point as well. Most never do.
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Old 07-26-2014, 06:44 PM   #23
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How often does everyone repack the bearings on your tow vehicle?
Check your TV's manual but I believe you will find there is no maintenance recommended for wheel bearings. In nearly all modern vehicles the bearings are in a sealed cartridge. Not serviceable. Unless you have a 1948 truck.

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Old 07-26-2014, 06:50 PM   #24
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OK, I don't want to greeze my brakes but Dexter says if the seals are good and you use the correct grease with a hand lube pump and don't go nuts the system should work. But, if I decide to correctly clean and hand pack the bearings with top quality grease and I don't drive through or store my TT in a river, say about 5,000 miles a year on them. Do I really need to do a re-pack every year? I am thinking more like every 3 years. That would be about 15K miles and should be no issue. maybe I am missing something that demands every year.
4X4. You have Alko axles. Before adding grease, read the manual, or the sticker on the trailer sidewall, and ONLY use the grease with the specifications Alko specifies.

In answer to your 15K or every year repack question, just retire and travel close to 10,000 miles a year and repack at the end of your travel season. Otherwise, I would be comfortable with a repack after 2 years. But to each his own.

Bob
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Old 07-26-2014, 06:55 PM   #25
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A solution is oil bath bearings and seals as it keeps the lubricant where it needs to be all the time. Problem is for TT, 5ers, not sure there is a good system available.

Have you ever heard of this kind of system on a RV?

Bob
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Old 07-26-2014, 07:08 PM   #26
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How often does everyone repack the bearings on your tow vehicle?
I repack every year! Better safe than sorry. Have not had a bearing problem yet!!
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Old 07-26-2014, 07:14 PM   #27
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Have you ever heard of this kind of system on a RV?

Bob
I have never personally seen one, but have replaced grease type front wheels with Stemco covers and oil bath seals.

Check this link for info. Appears there are some available.

Search results for: 'oil bath hub cover'
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Old 07-26-2014, 07:14 PM   #28
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I repack every year! Better safe than sorry. Have not had a bearing problem yet!!
Very wise.

Earlier this year I was going to replace all my factory original wheel bearings with US made. I'll start a new thread for this.

Bob
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