Grease 7000# axles

PretendFarmer

Well-known Member
I greased my trailer axle hubs but I have no idea if it's enough grease or not. Nothing moved. I put about 7 pumps or less. Less if it was hard to squeeze the handle on the grease gun. Is there some way to know if I put enough in ?
Sorry if it's a stupid question, none of my trailers before this one had a zerk fitting behind that rubber cap.
 
You are surposed chock one side of trailer and jack up other side(under frame only) till wheels are off ground. Then take rubber plug out and put grease gun on. Then turn wheel slowly while pumping in grease till you see new grease (grease wiil come out same hole were plug was taken out) and then wipe off old grease and put plug back in. It may take up to a tube of grease per wheel.
 

Thanks. That helps put it into perspective. I will drive the rear axle onto ramps, do the front axle then reverse the process for the rear axle.
 

I was giving mine about three shots once a year unless I went to Delaware or Ohio or some long trip, and when I had it in the shop the guy told me that I was over greasing it.
 
That's how it's designed to work.

In my experience, when the hubs get slightly warm from running, the grease expands, and it pushes out around the rubber plug, making a greasy mess.

If the inner seal is weak, you'll pump your brake drum full of grease.

You are far far better off taking the wheels off once every 3000 miles or so and repacking the bearings the old fashioned way.
 
My car hauler has the same set up,I just pop the whole dust
cover off & then grease it.I pump it til grease starts to come
thru the bearing & this seams to work good.Not a bunch of
excess grease inside dust cover to run out once everything is
warmed up either.
 
If you trailer has Dexter EZ Lube axles you lub them once every 12 months or every 12,000 miles which ever comes first. You are not to mix greases this can have an effect on bearings and seals this has to do with the differant types thickners in grease( they say to use lithium grease). As I said below to do in right you have to get tire off ground and rotate wheel slowly while pumping in grease.
 
Mine has a grease zerk centered on the axle. The hole through the center of the axle goes to the between the rear seal and bearing. On the front side is a hole in the seal and I pump till I get clean grease. It forces grease through both bearings and fills the cavity in between. That trailer is 7 years old and, so far, no problems.
 

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