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Old 06-15-2013, 02:21 PM   #1
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Grease

How often do people with ez-lube hubs add grease every month every trip certain milage. Just curious
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Old 06-15-2013, 02:33 PM   #2
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At the beginning of the season and every 5000 miles. My preference.
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Old 06-15-2013, 03:26 PM   #3
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Before first trip of the season and before the last trip of the season. I use Mobil 1 red grease.
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Old 06-15-2013, 08:37 PM   #4
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Hand pack mine
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Old 06-16-2013, 09:40 AM   #5
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At the beginning of the season and every 5000 miles. My preference.

I flush out the bearings using the Zerk fittings during de-winterization and every 2,500 miles. I also remove, inspect, and hand pack every three years (refilling the hubs after assembly. (I know the manufacturer says yearly - overkill if you flush the hubs with grease every 2,500 miles)

Last time I checked them they looked brand new and hubs can easily be held in the hand after 4 hours of highway driving.
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Old 06-16-2013, 07:13 PM   #6
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I flush out the bearings using the Zerk fittings during de-winterization and every 2,500 miles. I also remove, inspect, and hand pack every three years (refilling the hubs after assembly. (I know the manufacturer says yearly - overkill if you flush the hubs with grease every 2,500 miles)

Last time I checked them they looked brand new and hubs can easily be held in the hand after 4 hours of highway driving.
Could you define "flushing out"? I probably need to do some bearing work but but have been nervous of blowing out a seal or overfilling and getting grease into my brake drums from over pumping at the Zerk. I probably have 2 1/2 years and 4k miles on my current bearings with nothing other than added grease.
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Old 06-16-2013, 08:32 PM   #7
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Could you define "flushing out"? I probably need to do some bearing work but but have been nervous of blowing out a seal or overfilling and getting grease into my brake drums from over pumping at the Zerk. I probably have 2 1/2 years and 4k miles on my current bearings with nothing other than added grease.
Added grease is what I was referring to. I use a hand grease gun (no air or electric) and slowly pump just until the black grease is replaced by the clean red and then stop. (This is just the dirty grease from the OUTSIDE bearing initially. It will be a short push until the INNER bearing's dirty grease works its way through to the outside; then there will be quite a bit of dirty grease as the hub's outer race flushes out till fresh red shows up again.) See the graphic.

It should go in easy. If it squirts out the side or won't take grease with an easy pump, the Zerk is plugged and needs to be removed and cleaned or replaced. Trying to force grease into the Zerk will over pressure the hub and you risk seal damage.

Removing the hub to repack the bearings by hand can actually increase the risk of a damaged seal if the seal surface comes in contact with the axle's threads; scoring it.

I have found that using the EZ-Lube (or Ultra-Lube) system regularly, reduces the risk of seal damage and increases bearing life. Obviously, your experience may differ. Not promoting it; just saying you paid for it when it was shipped with the trailer, so you might as well use it.
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Old 06-16-2013, 09:18 PM   #8
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Herk thanks for that description. I was trying to figure out how to hook my air compressor up and envisioning a big greasy mess in my pole barn. I did that this spring. Pumped the new red high temp (don't have brand right now) in black old came out when red was coming out figured I was good. Leaving next week for maine from Michigan so I may give a quick squirt before we go as I did take one 50 mile trip last week.
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Old 06-16-2013, 09:29 PM   #9
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Herk thanks for that description. I was trying to figure out how to hook my air compressor up and envisioning a big greasy mess in my pole barn.


Putting the grease in under air pressure will definitely pop the seals.
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Old 06-16-2013, 10:17 PM   #10
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Hey Herk, do I need to remove the wheel to lube from the zerk and will the grease come out the front by the zerk or out the back toward axle?
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