How to Bleeding Your Jack with a Floor Jack is a video.
A bottle jack needs to be bleeding from time to time, especially if you use it frequently.The jack won't work if it has air in it.In most cases, if the system has air in it, the jack simply won't lift a load.The process of bleeding a jack can be done at home.
If you want to bleed a jack, you'll need a flathead screwdriver and an instruction manual, but you can do it without the manual.
If these air bleeding steps don't work for you, you can try the method that will get all the air bubbles out of the jack.
Thanks for the tip.The jack didn't work after I filled it.The directions were all I needed.