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Old 08-13-2007, 12:49 PM   #1
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I am planning a rather long trip leaving the end of September. The only thing left that I need to do is grease the RV wheels. There is a grease "zert" on each wheel. How do I know how much grease to put in? Can they be overfilled? Any help from you "wise one" would be appreciated!
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Old 08-13-2007, 12:49 PM   #2
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I am planning a rather long trip leaving the end of September. The only thing left that I need to do is grease the RV wheels. There is a grease "zert" on each wheel. How do I know how much grease to put in? Can they be overfilled? Any help from you "wise one" would be appreciated!
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Old 08-13-2007, 06:53 PM   #3
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I think the name for these are EZ-lube axles. My 5er has them, and I'll never use them. Yes you can easily over-grease them. Add too much grease and you can force it past the grease-seal and probably contaminate your brake shoes. I grease the wheel bearings the tried and true way. Like this: Scroll to bottom half of page-wheel bearings perform a vital service
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Old 08-14-2007, 01:10 AM   #4
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I also am not a big fan of using a grease gun on wheel bearings where drum brakes are involved.

If you do pump grease into the zerk, don't over do it.

Also, make sure you have some high quality grease in the grease gun that is suitable for wheel bearings. I prefer to use synthetic, and make sure it has the NLGI symbol and meets GC or GC-LB.
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Old 08-14-2007, 04:00 PM   #5
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It's not just the grease!

One of the primary reasons to repack wheel bearings is to inspect the interior of the hub and catch potential problems early.

This means
- removing the hub;
- cleaning the bearings and spindle and hub;
- inspecting the bearings, races and spindle for rust, pits and whatever;
- repacking the bearings, installing a new grease seal,
- inspecting the brake springs and wires and connections
- re-assembling
- adjusting the brakes
- and making sure the bearings are properly seated.

It's not just the grease!

And be sure to check the lug nuts torque after every few miles until you are sure they are set. Also keep an eye on hub temperatures to catch any problems early.

It's not just the grease!
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Old 08-14-2007, 05:11 PM   #6
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Do not use the zerts. Do it the old fashioned way.
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Old 08-19-2007, 08:03 AM   #7
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Thanks for the tips! I already have an rv tech lined up to come to my home and do all this for me. I appreciate your input. Carl
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Old 08-21-2007, 03:31 AM   #8
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Good call. There's just no replacement for hand packing and visual inspection of the bearings and brakes.

Preventative service is much easier to deal with than having a bearing lock up and weld onto the spindle on the highway somewhere.
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Old 09-03-2007, 02:21 PM   #9
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It's a good idea to inspect all your brake components while you have the hubs off. Springs can break, shoes can wear excessively and/or break, and the magnets can be worn as well and scoring the inside of the hub. And by all means replace all rear seals with new ones and throw the old ones away no matter how "good" the appear.
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