"learned" Now you've 'learned' another. 👍

@Rick Wilson: kzfaq.info/get/bejne/Z797p8WprMm3mWw.html This guy demonstrates filling and bleeding a Duralast jack.

gravity dude

@@Z3n1tHL0rD mark it an 8 dude..lol woooooo

I know it’s a older reply but if your Jack does not lift and no oil leaks out then you just need to bleed the air out, with most floor jacks it’s either leaking oil or needs bleeding

​@@johnjkizer6399How do I bleed the air out?

To bleed this jack, 1. open the valve (on this particular jack), 2. remove the fill plug, 3. put pressure on the saddle (the arm that raises up), 4. use the handle and operate the mechanism up and down several times, 5. fill the reservoir with oil 6. replace fill plug. 7. test to make sure it raises and lowers and holds weight without sagging.

Harbor Frieght

7.8mm X 1.9mm = 0.307" X 0.075" However, you will mot have any difficulty finding metric O-rings in the US. redrok

Hi on the top of the cylinder is a rubber bung, remove that and with the cylinder down fill to the top with Jack oil. Job done!

kzfaq.info/get/bejne/Z797p8WprMm3mWw.html

@@kghwanadoo can you put a picture?

Thanks!

If you have calipers, you can measure the diameter and thickness..or if you buy a set like he did, you can match them up to the chart and the corresponding o ring compartment.

There is a rubber cap on top of the cylinder that you have to remove very carefully. I used a KZfaq video to do it today and it is back working!

Lol he means hydronic fluid i am guessing, or shoot, oil may work, but not as good.

On the big cylinder itself there is a bump the same colour as the Jack. This is actually a rubber bung just over painted. You should be able to pop it out and fill there. It's quite a tight fit to get it back in. I had to twist it in, even though it's just a rubber bung. Replace the release screw o ring whilst you are there. Mine leaked from both. As someone else mentioned, this is the same Jack as Hilka sell in the UK at Screwfix as well as other manufacturers.

@@makestuffwork9205 thanks 😁

@@makestuffwork9205 What size o-ring did you use for the release screw. I have the one he is talking about

All jacks have o ring seals, 100% guaranteed, your model made be made different

PENISRING

These go for $20 new

@@Your-Mom__ Maybe, but there’s no challenge in that.

yes and a hardware store sells O rings and all other wonderfull happy things lol

@@jefferywarburton2116 I was about to ask where I could get the O rings from.

ya i still have to fix my jack its the last jack i will buy from walmart thats for sure.

Split pin bruh

Then the o ring at the bleeder screw needs to be replace as well. It's much more thicker

Did you try bleeding the air from the jack and replacing the oil?

@@alexanderwebb680 Many times but it didn't help I think the seals were gone

Sorry to hear that. I'm not sure what to do about a blown out main piston seal. Seems like you can find replacements for more expensive jacks but with the smaller less expensive ones it's expected to buy a newer (better) one. I'm hoping to get mine working tomorrow, got leaks at the bleeder screw and pump piston. Going to replace both o rings, fill with fluid, bleed air and hope that works. If not there's a nice jack at home depot with my name on it.

@@alexanderwebb680 how can you bleed the oil or replace it please?

@@salamabod1975 To bleed the air out of the system you have to unscrew the valve that you normally unscrew in order to lower your jack. You don't want to remove it entirely though. Once the valve is unscrewed enough that the jack will not lift when you moving the handle up and down, you're going to want to continue moving your handle all the way up and down about 10 or 12 times. Then fully re-tighten the release valve, and jack it all the way up to check if it worked. To replace the oil, you have to remove the rubber plug, and turn the jack upside down over a bucket so the hydraulic fluid can leak out of the drain plug hole. Then you simply fill the reservoir back up with hydraulic jack fluid from the hardware store and bleed air from the system like I described. But you must be careful when bleeding air from the system after replacing the oil, because the rubber plug can pop out while you are attempting to move the handle up and down. This can spray hydraulic jack fluid into your eyes. It has happened to me, it makes your vision blurry and can injure your eyes. I had to flush my eyes with water for a long time before I could see clearly again.

Just fixed my Pittsburgh trolley jack by replacing this o-ring. Had the correct size in a HF o-ring kit.

I am glad you got it to work

You have to use wood block with the jack to bump up the height

@ ….. or buy a jack that lifts higher. Some people that all jacks work for all the same applications, which absolutely not true.

@ Be careful using a wood block. Doing so may not allow you enough clearance space needed to fit the jack with the block underneath.