There is a lot of videos on u-tube showing this method, but I'll give you the gist of it. While hooked up, raise the legs all the way up. Then you should be able to release the stanctions and remove them. Then take a small section of hot water heater insulator (like a pool noodle, but smaller around. ) cut a slit in it lengthwise and use your grease gun to fill the insulator. Slowly run that tube up and down the shaft making sure there is extra grease on the top to get some on the top knuckle. Then remove the cap with a screw driver and pack that area full of grease. Reinstall the feet and run them up and down a few times and your good to go. I found this method on utube and do it once a season.
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