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06-15-2014, 06:40 PM
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#1
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Member
Join Date: Sep 2013
Posts: 38
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Axle Bearing Service Interval?
How often to the axle bearings need to be greased? Mine were done last year at a shop, but I've put some distance on them since. Just wondering if I need to jack the trailer up and repack them before moving on.
I might as well ask what the torque spec is on the bearing adjustment nut. I assume they are packed in the same manner as an automotive bearing.
It's a 2001 All American Sport.
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06-16-2014, 12:19 PM
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#2
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Guest
Join Date: Jun 2013
Posts: 273
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I go every other year, my dealer's recommendation. Typical mileage is 1000-1400 miles per year on the trailer.
Moisture is the bearing enemy. If I racked up 10K+ a year, then I would have them serviced every spring.
Some like to have them re-packed every year regardless. I've been doing it this way for the past seven years, no problems. Everytime my dealer re-packs, everything checks out fine (I admit I have a good dealer, both trailers, of different makes, have been trouble free. Same for their service.)
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06-16-2014, 05:58 PM
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#3
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Explorer
Join Date: Sep 2012
Location: CA
Posts: 342
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I like to check my bearings yearly but I put miles on my TT and my boat sees salt water(w/bearing buddies). I have not found many problems with bearings but I do find issues with brakes and grease seals. As well, I like to grease the suspension and do an overall look under the trailer(welds, tanks, wires, pipes ,insulation, strapping, spare tire,……just anything I can see down there). Looking under my trailer just gives me that warm and cozy feeling knowing what’s going on.
I am nothing more than a home mechanic and would only do my families bearings so I can watch them afterwards to do any adjustments if needed. I always recommend a 10-20ml trip after adjusting bearings and brakes, then jack up each tire and check for any extra play(must be less then 1/8inch of play wiggling tire from side to side) or tire not spinning easily enough(too tight). On my trailers(boat, camper or utility) I put my hand on my lug-nuts/rim/hub to feel for any extreme heat buildup at every gas fill, a warning too bearing or brake issues(what else do I have to do while filling).
I just use a home mechanics approach(no torque numbers). I tighten spin, tighten spin, tighten spin, tell it doesn’t want to spin much(setting the bearing), then back off 18%-25% of a turn(45-90deg), should spin freely but be no noticeable play. I imagine its easy to get it wrong: to tight, to loose, to much grease, not enough grease, grease seals, spindle issues, brake issues, jacking up the trailer issues, type of grease, judgment of what is a warn bearing, race issues, drum issues, tire wear….. Now we have these new axles with grease fittings so I am still learning how to use those to my bearings best advantage.
This is where the tire hits the road and there is a lot going on it is no where near rocket science but its important.
Good luck, be safe
John
__________________
John
2011 Wildwood T26BHXL
2004 Yukon XL Denali
43yrs of camping; one lucky guy
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06-16-2014, 06:34 PM
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#4
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Plain Old Member
Join Date: Nov 2012
Location: Full Timing in South Louisiana
Posts: 1,938
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I was kind of curious as well with the EZ lube hubs / Dexter axles. We don't rack up a huge amount of miles like we used to, but I still add a shot here and there, at least enough to see the grease coming out where it's supposed to.
In this case, how often should one completely remove and inspect?
__________________
John and Rebecca Dickson
Emma-7 / Little John-5 / Iva-1
Full Timing Again, Rev B
2013 Ford F-350 Lariat CC LB PSD
2015 SOB TT - With OC's Awning Poles (#8)
At least in Heaven, RVs will be perfect, and I won't have to keep fixing them.
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06-16-2014, 06:45 PM
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#5
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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If you have the EZ Lube or Ultra-Lube axles, you can get away with lubing before every trip. I pump until fresh grease appears.
NEVER just "pump a few squirts" as you may not be moving enough fresh grease to flush the bearing out.
Every so often you will need a LOT of grease to get fresh grease appearing because the back bearing dirty grease moves forward each time until it meets up with the front bearing dirty grease. You will then need to clear ALL the dirty grease out.
The manual still says to inspect the bearings every year.
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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06-16-2014, 07:09 PM
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#6
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H2oski
Join Date: Dec 2008
Location: Hartford, AL
Posts: 639
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Quote:
Originally Posted by wantahertzdonut
How often to the axle bearings need to be greased? Mine were done last year at a shop, but I've put some distance on them since. Just wondering if I need to jack the trailer up and repack them before moving on.
I might as well ask what the torque spec is on the bearing adjustment nut. I assume they are packed in the same manner as an automotive bearing.
It's a 2001 All American Sport.
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Per LIP Sheet - 0132 revA
The Lippert manual reads every 12000 miles or 1 year, which ever come first.
Bearing Adjustment
1. Tighten spindle nut to approximately 50 ft-lbs and rotate hub.
2. Stop hub, back off nut so you can tighten by hand.
3. If spindle hole aligns with slot in nut, install cotter pin or bend over locking tab of tang washer .
4. If it doesn’t align, back nut off until it does, never go in the tighten direction.
I think there is an axle manual in the "Library".
__________________
Wife
2007 Chevy 2500 HD 6.6
2012 Sabre 31RETS
(LA) Lower Alabama
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06-16-2014, 07:10 PM
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#7
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Senior Member
Join Date: Aug 2012
Location: Adrian, MI
Posts: 111
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My manual says to spin the hub while adding grease, does anyone do that?
__________________
Mark & Barb
2013 8289WS Platinum Pkg
2008 F350 King Ranch CC 6.4
2013 nights camped 35
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06-16-2014, 07:41 PM
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#8
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Senior Member
Join Date: Apr 2013
Location: Idaho
Posts: 2,058
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The first time I lubed the bearings via the EZ lube system, I did spin the wheel. It took quite a bit of grease to fill the system the first time. This year (second year for the trailer), I did not spin. I pumped until grease started to come out the front, and it only took a few pumps to get the grease to start coming out.
I was planning on doing this for three years, then in the start of the fourth, pulling it all apart and replacing the seals. Then start the cycle over again. However, I have decided that next spring I will be replacing the current brake system with a self-adjusting system, so seals and bearings will be replaced at that time.
Dealer told me that unless you are doing 10K or more miles per year, one lube per year is ok.
__________________
Trailer: Lifted 228BH, heavy duty springs and Yokohama tires DELAMINATED ROOF
TV: 2016 GMC Sierra Z71 4x4 CC, SLT
Spare TV: Two Alaskan Malamutes
Living somewhere in ID; previously lived in Moab UT; previous to that, don't ask!
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06-16-2014, 08:53 PM
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#9
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Member
Join Date: Sep 2013
Posts: 38
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Quote:
Originally Posted by h20ski
Per LIP Sheet - 0132 revA
The Lippert manual reads every 12000 miles or 1 year, which ever come first.
Bearing Adjustment
1. Tighten spindle nut to approximately 50 ft-lbs and rotate hub.
2. Stop hub, back off nut so you can tighten by hand.
3. If spindle hole aligns with slot in nut, install cotter pin or bend over locking tab of tang washer .
4. If it doesn’t align, back nut off until it does, never go in the tighten direction.
I think there is an axle manual in the "Library".
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Thank you for that, it's exactly what I was looking for. I have a little less than a year of time since the last service, but just a few more miles than 12k on the whole mess. We're staying put for a little while so I'll get to it before we go.
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