Help Bleeding a Floor Jack?

[Ryan.2288]

I'm brand new here and could really use some help. I went to bleed my Pittsburg 1.5 ton floor jack (part # 40506), and could not for the life of me figure it out. I've searched and searched and there's no videos or anything about this specific jack. Similar jacks, yes, but no information I can use on mine. Any help is much appreciated and I'm excited to join this site.

 

[Wamsutta]

All you do is pump the handle about 10 times with the valve in full release. Some people think you have to bleed it like a grease gun but you don't.

 

[HCRCnow]

Your jack will bleed just like all other jacks. I have included a copy of a webpage.

If your jack is acting 'spongey' the major reason generally is that you have a BAD SEAL that is sucking air into the system or else your kids (or some bugwit neighbor) played around with it and tried jacking it upside down. Whatever the reason - Here we go:
Jack the jack all the way up/out. Release the release and retract all the way down. Open the filler plug and you should get a little psssst. Voilá! That's IT! But MAKE SURE you open the filler plug and NOT a CHECK VALVE - This will introduce air INTO your system!
Also you may lose the prime of your jack. - Set the release valve closed and PULL THE PISTON OUT or UP, open release valve and push back down. This should force oil through the system and catch the prime again - You may have to do it a couple of times.


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[Ryan.2288]

I know for a fact I have opened the check valve (unfortunately) because I have toyed with all 3 so much trying to figure it out :/ I understand how to bleed it once I know the correct filler plug. Which of the three shown do you feel is the fill plug? Thanks for the priming tip!

 

[HCRCnow]

I know for a fact I have opened the check valve (unfortunately) because I have toyed with all 3 so much trying to figure it out :/ I understand how to bleed it once I know the correct filler plug. Which of the three shown do you feel is the fill plug? Thanks for the priming tip!

The hex nut is the filler plug.


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[Ryan.2288]

Ok great, thank you!

 

[trekgod3]

Ok, silly question. Did you look at the manual that came with it ( assuming you got it new)? Info on bleeding and filling should be there. If you don't have the manual, did you know you can just download it from Harbor freight's website?

 

[Ryan.2288]

Unfortunately, I can't locate the manual at home, nor can I find the version to download on their site. The jack is roughly 10 years old or so. I'm saving for a decent floor jack, but until then I need this one to work.

 

[bubinga]

All you do is pump the handle about 10 times with the valve in full release. Some people think you have to bleed it like a grease gun but you don't.

So, you don't have to "burp it" at the fill plug, after pumping the handle then?