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Old 04-15-2016, 09:32 AM   #1
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No Zerk on my Ultra Lube axles

Hey all,
I just purchased a 2016 Salem Hemisphere 29BH. They have Dexter D44 axles, and they are supposed to have Ultra Lube axles.

A picture should be attached. How do I lube these axles. I don't see a zerk.
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Old 04-15-2016, 09:34 AM   #2
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That black disc in the middle should be a rubber plug that you carefully pull out ( do not tear it) The fitting is behind it. Be careful to add the grease slowly so you do not blow out rear seal. If the grease is cold, bring it inside to warm up for a few hours.
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Old 04-15-2016, 09:53 AM   #3
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There is no rubber plug. Underneath the cap, as you'll see in the pic, is another metal cover. My spec sheet doesn't list what axle type. Is it possible that I have to repack the bearings manually?
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Old 04-15-2016, 10:02 AM   #4
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Have you jacked the unit up and pulled a wheel? If not, who knows what the end of the axle looks like!
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Old 04-15-2016, 10:51 AM   #5
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They do also make metal caps that cover the ends of the axle. I agree with above, pull the wheel and look. If you were seeing the spindle of the axle, I would think, you should see the castle nut.
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Old 04-15-2016, 12:26 PM   #6
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My spindle has a metal dust cap with a rubber plug in the end. It looks like a regular dust cap on yours. Maybe the wrong caps?
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Old 04-15-2016, 12:47 PM   #7
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That looks like a Beauty Cap and you need to pull the wheel and that will expose the hub end. Then there will be a rubber disc you remove to expose the grease zerk.
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Old 04-15-2016, 12:52 PM   #8
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Ultra Lube axles

I suggest you check out thoroughly the benefits of this easy grease axle. I lost a wheel bearing which is no fun on the road. A knowledgeable (I believe) mechanic told me that pumping grease in that axle end zerk will lub the front bearing but it will be a frosty Friday before that grease makes it's way to the rear bearing. He suggested that one would need to fill the spindle cavity with grease and then one could easily push out the rear grease seal. To each his own but ......
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Old 04-15-2016, 05:33 PM   #9
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I question the "knowledgeable mechanic." The grease is pumped to the back of the assembly, then flows forward through the inner bearing into the outer bearing. Works just like the Dexter EZ-Lube system.

Just take one off and see how much grease has been packed into the inner bearing that was not there when the bearing was assembled.

And if the seal is put in properly, and a HAND PUMP is used while the wheel is turning, there is no problem. I've never had a problem.
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Old 04-15-2016, 05:58 PM   #10
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I agree with removing the wheel and pulling the hub. It not only answers your mystery but will allow you to check the magnets and brake shoes along with blowing out the hibernating spider webs if you have access to compressed air. The added benefit will be that you'll be readjusting your brake shoes which is paramount to safe operation yearly.
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