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rockwind1's avatar
rockwind1
Explorer II
Sep 03, 2017

rear axle hub flinging grease on rim and tire, need advice

i have a 2007 attitude fsakg33 fifth wheel, triple axle. i learned years ago about the little rubber cap that comes off the hub and there is a zerk. so i use quality synthetic grease and pump it till it starts oozing out of the bearing. been doing it for years but recently i noticed the grease on my back axle seemed to become very liquid and escape and gets flung all over the rim. i actually had one of the caps come off and that really made a mess. i fixed it though. but i have only noticed it on the back axle, but i also noticed this trip that my trailer brakes aren't working as effectively as they had in the past. see pics. any thoughts from folks?

since it is only the rear axle, on both sides it is odd. been treating all the axle's the same for years. my thought are that maybe the brakes are heating up more and liquifying the grease more so that it can escape the seals,,,,,but i am hoping someone here knows for sure. thanks! please see youtube video of the rims and tires here are two links to the same video https://youtu.be/lMn9JmVLbVE

kevin's rear axle rim with grease all over it
  • rockwind1's avatar
    rockwind1
    Explorer II
    Sep 05, 2017
    update on situation. just wanted everyone to know, although i have a lippert axle (has a sticker that says LIpper lc152) the hubs are obviously dexter. it is a 5200 lb axle. the ez lube system on these only has one hole that goes into the inner bearing, then the grease has to fill the entire void between inner and outer bearing before it goes thru outer bearing and i can see it oozing out, so this particular ez lube system requires a lot of grease gun squirts. my inner seal was not blown out, although it appears some grease, not a lot, has oozed thru, i think more because it got hot than being over greased via the zerk. i have been told that the heavier axles have a hole for both the inner and outer bearing and require less pumps. also, i do not have "auto adjusting" brakes so my reduce braking may also be a factor of me not having adjusted them (i thought the star wheel adjusted them when braking backwards) anywayjust putting this out there for what it is worth,,,,thanks again for all comments
  • fj12ryder's avatar
    fj12ryder
    Explorer III
    Sep 05, 2017
    Nope, you've been informed incorrectly: the EZ Lube just has one hole on the heavier axles too, unless maybe the 8,000 lb. axles have two holes. But my 7,000 lb. EZ Lube have just the one hole, and yes it does take a lot of grease to fill up that void the first time.

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