Repairing a Leaky Shinn Fu (Pro-Lift) 2-1/2 Ton Floor Jack
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- čas přidán 2. 10. 2020
- My floor jack has been leaving a small puddle of jack oil after use. It's time to replace the seal and "O" rings.
If you are less adventuresome you should try replacing the hydraulic jack oil with some hydraulic jack oil containing stop leak. That may buy you some time.
UPDATE 3/25/23: Thanks for all the helpful comments, obviously, this was my first time repairing a hydraulic jack. To the folks that want to go directly to an "O" ring supplier for parts: Abom79 has a great video on how to measure grooves and order "O" rings from suppliers; Hercules Hydraulics or CRC, see the 19 minute mark at • Mahindra Hydraulic Cyl... All the best! - Jak na to + styl
![MUST HAVE TOOL! How To Fix or Rebuild a Floor Jack [BOTTLE JACK]](http://i.ytimg.com/vi/sk0FF6GFlqA/mqdefault.jpg)
Please edit video on how you tried to fill fluid. You did it wrong and wasted a lot of fluid and time. Ok just to help incase you EVER try this again. So with jack all the way down handle turned open fill fluid. Put PLUG IN and then pump jack all the way up and down about four times. Then with jack all the way down and handle open crack fill plug if there is air in there you will here it come out only takes a second or two then tighten back up and done. The way you did it you unsealed the system and kept letting it suck in air over and over and over and over..... and over again. When filled and sealed when you pump it any air will get pushed in the filler cap area. Why it finally worked for you is you SEALED it lol Also the sides can move when you take the pump out by you trying to put it back in on its side is why you had so much trouble, also hint of the day. Take the two big top bolts out (one on each side) and take the handle top part off first then pump then pump in first then handle top part in. You would of been done in half the time also without the risk of breaking your fingers with all the moving parts flying around like you were doing. Good video for you to learn from is from EdontheBeach Fill & Bleed a floor jack. He made a video for you to learn the right way.
THANK YOU
this guys is an idiot
Traduce al español
Now if only someone could post the same method but with the correct grammar that would be great. Save the time wasted from reading and trying to understand those instructions.
The feeling you get after fixing it yourself is very satisfying.
David, you are a very patient person. I would have spouted off some choice words when a couple of setback situations occurred but I really appreciate the time and effort you put into this video so we can learn from you. Thank you!!
That's for watching Eric. I appreciate the kind words!
I have an old Pro Lift like yours, bought it some 30 years ago. It’s been the best jack I’ve ever owned. Thanks for sharing the video. 👍
Yes, it's a great jack. Lately, mine has developed a leak again and I can't tell where it's coming from.
@@davidgpo maybe make another video of that repair 👍
Thanks for making this video! I already have the seal kit for mine and am ready to get the project done - I need to work on my fifth wheel brakes and my floor jack will be handy to have operational again!!!
Extremely informative video! Your patience is more than amazing! Thanks!
Glad it was helpful!
THANK YOU for that Drain Fill Plug identification
Thanks for watching!
OMG ! You have the patience of a saint.. !? My old 40 dollar jack was only lifting halfway. Chucked it in the garbage and bought a quick lift, two cylinder, 3" to 20" lift unit for 112 bucks at Home Depot. This video made me happy I did.
I was raised by Depression Era kids! Thanks for watching!
Guess what that new Chinesium jack's waiting to do to your skull?
Thanks for the video. I have the same floor jack Shinn Fu made in Taiwan G-489, about 25 years old. I got the Blackhawk kit out of Tennessee and studied your video and rebuilt my jack. The main ram piston seal was destroyed and broke apart. All the new seals fit. I left the white plastic rings and carefully inserted the new o-rings in the plunger. The old ram seal was green, the new is blue. Can’t believe parts are still available. Jack works good as new 😊 thanks again.
That's great! Thanks for watching!
Dzięki.Super pokazane i warte obejrzenia. Nareszcie przejrzę i naprawię swój podnośnik. Pozdrawiam z Polski.
Hello from Seattle. Good luck and thanks for watching!
these jacks are high quality and if taken care of properly will last a lifetime. always turn counterclockwise until it stops and can't turn any more. Keep in mind the handle has to be in the up right position. Then til the handle and turn completely clockwise till it stops and can't turn any more. Now pump and when finish with the handle up turn and decompress the pump by turning the handle completely counter clockwise.
Thanks for watching!
I just inherited this exact jack but it didn’t have labels. Thanks to you I know what I have and got my seal kit on order.
Best of luck!
Make sure the bastards put all the seals in not like this over priced kit this poor guy ordered. yep good luck
Very comprehensive video. Very good video & audio quality. Quite a project. Thanks for taking the time to put this video together. as I learned a bunch of things along the way. But after watching the entire job, I will not rebuild my leaky floor jack after all. I only need lifting 4-5 times a year. A simple & care free scissor jack does the job without leaking or any such hydraulic maintenance. I was stunned at the $40 price of simple O-rings & minor parts. Thank you again.
Hang on to that jack in the event you decided to rebuild it at some time in the future. The floor jack is much more stable than a scissors jack. Thanks for watching.
I just want to say thanks for the video I repaired the same that you have, I did the same as you did it and you know what??? It’s working perfectly thanks for the video
Great news! Thanks for the update!
To fill the reservoir, fill nearly full to to the top of the filler hole. Work the air out and top up.
When installing springs, notice that the end of one of the handles on your brake tool has a V slot cut into it. Put the spring hook around the tool handle, and rest the V on the spring post; tension the spring by prying back with the tool handle until the spring hook slides down the handle length onto the post. Give the tool a half twist and remove.
The backup washers are usually split with a bevel cut so they can be spiraled into the O ring groove.
Great video, I'm I the middle of a rebuild on same model.
Like you, I didn't know where that little screen came from and where it went back.
Thank you!
If I remember, I think that screen covers a port inside the large cylinder. Best of luck and thanks for watching!
If you are using your phone to record, once you properly get your item focused just hold your finger in the screen where you want it to focus until it locks your focus, then you don’t have to constantly try to refocus your video and we do t have to get a headache while our eyes try to constantly refocus on a blurry image.
I'm not using a phone to video. This video was about the time I stepped on my camera while replacing the oil pan gasket on the Ford Contour so I don't remember if I was using my old Sony camera or my Sony RX100. Both cameras are challenged when I try to get close to show you guys details. I don't always see the resolution from the small LED screen while I'm filming. Keeping details in focus is a challenge and will be until I upgrade to a new camera. The Sony can sure squeeze into some tight spaces. Thanks for watching!
I have the same Jack as you and your seal lid came off so easily, I spent bout 3 day hammering with pipe wrenches and adjustable and 1/2 inch impacts. I had my dad bring a 3/4 impact from work and even with that it took about 2 or minutes before it loosened up.😂
That is what I'm running into. I'm wondering if thread-locker was used by the manufacturer.
really appreciate the video. help me for sure.
Glad it helped
Good video on things not to do with a floor jack. Okay along with all the other good tips in the comments section here. I will add mine "do not use leak repair hydraulic jack oil" for assembling a new seal kit. It will do just as you expect and make them expand and you can't get your s*** back together. Now when you get the proper oil and it has a little spout on it. Put a piece of clear hose on there with a nice snug fit and then you won't spill a drop.
Thanks for sharing
Interesting video. I have a Pro-Lift 3000 lb that I have been trying to fix. I wondered if it was worth the effort. I gave up and bought a $30 jack from Home Depot. With encouragement from seeing your search, I just did another search and found the pump seal i probably need for ~$25 with shipping. I don't do a lot of car work myself now anyway. So, I think I did fairly well for my needs,
The repair was worth it to me. I do a lot of car work and am recently retired so I have the time to tinker. I hope your new jack works out well. Maybe someone in your community would like to repair your old jack?
The white washers are referred to as “back up washers”. They often have a beveled side and a flat side. Beveled side faces the o ring. O rings are on the pressure (bottom) while backups are opposite the pressure (on top). Back up washers prevent o ring extrusion, extending o ring life.
That's very helpful advice. Thanks!
@@davidgpo o9
Where did you get that kit it is identical to mine I need that kit
Very thorough and informative. Don't know if I would rather spend $35 or more on a kit, plus the time and aggravation or just scrap mine and find another at an estate sale for less.....
Yeah, I was raised by Depression Era kids! Thanks for watching.
I have 2 of these jacks, purchased from Trak Auto (in southern California) in 1987. They look identical to yours -- the allen-key bolt next to the pump, cylinder phillips-screw. Mine are orange color, white handles.
Both quit working, don't see any obvious leaks (ram cylinder, pump) 1 of them will raise..but doesn't stay up (lowers quickly). I tried adding hydraulic jack oil, do some bleeding..no change. I will try again tomorrow
I suspect the piston seal is leaking internally.
@@davidgpo I went back & did more tests. When I twisted the handle CCW to engage the release valve, it went down faster. I used a plier to tighten down the release valve at the sprocket (using a plier), it still "sinks"
The 2nd jack hardly even jacks up
See this animation
czcams.com/video/-KXaIXTavdA/video.html
2:00 mark, I can see how the jack works. On the 2nd jack (which hardly lifted), I opened the hex-screw (next to the pump). As I pumped the handle, I could see the big ball-bearing move up & down.
Fluid seems to be be pumping into the cylinder, against the u-cup seal.
@@jle540 On the 2nd jack, I assume you checked the fluid level in the reservoir. Has anyone tampered with the check balls and spring in the valve body. If those parts were removed the jack platform won't lift when you pump the handle. Otherwise, it sounds like it needs new seals.
A few amatuerish mistakes here and there, but a Good video, and thanks for posting. To Identify a jack as Shinn Fu brand, look at the logo on the power unit ( see 21:50) Its like an N in a circle.
Thanks for the info!
Hola está bien la explicación y una pregunta dónde puedo conseguir los empaques soy del estado de México y si me puedes decir te lo agradeceré mucho gracias
FOCUS! LOL....This jack looks exactly like the one I bought at Wal-Mart back in the 90's but mine is painted orange....Oh by the ay...instead of filling your cylinder with the jack laying flat, lift it up to where the wheels at the end where the pump bar that you use to jack pump up the jack is up vertical. Then fill the reservoir up with the cylinder vertical and you wont have to bleed it as much.
Glad i seen this my prolift jack same as that started leaking from plunger/arm bit. So replaced seal n wow its like new again
Great news! Thanks for watching!
@@davidgpo i was about to throw it out n buy a new one then the gods recommend me this video n well it worked
@@ba.skidderLOCKDOWN We don't throw things away on this channel! LOL! ;-)
Hey David, thanks for the video. I had this exact jack handed down to me but it doesn’t jack. The guy that gave it to me said he filled it but couldn’t get it working and I’m suspicious he made the same mistake you mention at ~4:30. Is there any way to confirm that the check ball/spring are not the issue before I buy this kit and reseal everything? If the check ball and spring have been tampered with, is there any way to repair the jack? Thanks again.
The repair kit doesn't come with check balls and springs. You can look in there to see if the check balls are there, don't lose them. If they are missing you can check with the company that sells the seal kit to see if they have check balls and springs. If they don't I suspect that the check balls and springs are common to other manufacturers. Don't give up!
No brother you fill it until it's full then jack it up and lower it which bleeds the air out then fill it up then jack it and release it again oil should be just below the fill hole
I got the same jack leaking in the same place but I have to say after looking for kits myself that I think they’re getting over on up big time cause I’d say there’s what $5-$10 worth of parts in those kits if that but I know,what are you going to do?I wanted to watch you or someone to see if I could fix just what was wrong and even use parts I have that are new but not from a kit but I gonna try.thanks for the video and info.oh my spring perch on the bottom that connects the spring at the ram end was bent and broke half off so I cut and welded a new one on,we’ll see
Yes, the repair kits are expensive. Good luck on your project. Thanks for watching!
Maybe the PO that shipped it was like mine. I spent extra with special delivery on a letter and it took longer than first class. Asked the person at the PO what happened. Explanation was they have a special run to the sort center and wail until they get enough first class pieces to move out the mail to the sort center.
You must be rural.
They do that all the time. Wait until they get a load.
Just wondering by the time you order and wait for the parts have to do all that work which I find interesting how much was saved from just buying a new one? Sure it's more, but time is money and there are some tedious parts to the repair like seating the Orings etc. and some dangers as well if done wrong ?
If I was running a production shop I would have replaced the jack with a new one but I have the time to wait for parts.
That was quite the battle! Was it worth the trouble?
You must be new here. This is my MO.
Me gustó la forma de purgar, despacio, despacio, 👌💚 saludos 🐶 desde Guadalajara jalisco Mexico ✌️
Thanks for watching Amigo!
have the same jack & will have to order the kit to fix. i was wondering if i can put fluid in the cylinder before i re-install it into the jack body ?
I think you can if your filler cap is tight. If it's loose it's going to leak all over the place.
I was hoping you could assist with more information about the two filler holes as you mentioned, as you stated not to drain the oil using those two. I did and the bearings springs fell out. I don't know where to replace them back into the correct holes now. can you assist with your resolve on information please.
The smaller ball goes in first. I can't remember if the spring goes in before or after the small ball. The diameter of the bore may dictate the order. The big ball goes in last. You may be able to find a parts schematic on the internet. I think the theory is the same among the various brands. Good luck!
@@davidgpo Thank you very much, I ended up getting it back together, and working after the bleeding process.
David do you know of any means by which to acquire that spring and ball that I lost as a result of draining my oil incorrectly?
I was very lucky to find mine in my oil drain pan. Try contacting Tools & Hydraulics Inc., Chattanooga, TN. This is where I got my rebuild kit.
@@davidgpo Thanks David!
Hej i have a similar shinn fu jack and i am trying to find the problem. I see small oil leak in small piston which is dry in your case.
Also when i push the small piston hard and very quick only then the jack goes up and only uptil the half way and then stop going up. With norm pumps it just doesn't go up.
I took out the whole mechanism and pressed the small piston with hand in quick motions, it goes up slowly and if i start pressing repetitively it just doesn't work.
Any ideas?
Sorry, I don't know what's causing this issue. Did you replace the seals for the small piston?
@@davidgpo thanks for the reply
I replaced the black o ring seal on small piston with the one i found from a big box of rings. Does it have to be very specific o ring? Can it be the faulty metal ball mechanism somewhere inside the jack?
@@adnansgarage You saw the trouble I had with the small o ring and wiper washer. What a head ache. There must be a tool to properly install them. About a year before I replaced the O rings I changed the fluid and stupidly drained it out through the valve body. I replaced the fluid with new fluid and I would jack jack jack and the platform would not rise. I discovered that the two balls and spring were in my oil drain pan. So now I know what those balls do and to drain the fluid through the main reservoir! I think if you match the size of the new O ring to the old you should be OK. Try consulting with the vendor that sold you the O ring kit. Good luck.
I have a jack just like this one except mine is a 2 ton. I didn't know who made it, I bought it in 1988 @ Kmart but Now I'm sure shinn fu made it because the screw next to the pump piston has to be taken out with an allen wrench like yours does, and other than mine and yours the rest of them have a screw that would be taken out with a flat blade screw driver. Can you tell me how many ball bearings are in that hole next to the pump piston? Most of them have 2 but mine only has one so I am wondering if it's supposed to have 2
My floor jack has two ball bearings in that hole. Good luck with your project.
@@davidgpo Thank you so much
I have the same jack: Sears floor jack, model 214.12000 (2 ton). Bought 1988 Sears.
My jack will be about 30 years old. After long doubts, the jack opened today. The large swivel does have a screw thread on me. There is a green ring on it, a nylon and a copper ring. I had to chisel loose that large swivel, too stubborn. The cylinder has not moved, paint streaks. My jack suddenly dropped a few times with the car on it, dangerous. So that green ring and the internal O ring of the swivel will be hard and worn out. I had already renewed the rings of the press piston, but the error remained. I have already got that far, now I have to find the right parts, the sticker is illegible. Perhaps I can now also measure the dimensions. Did you measure that to possibly compare, thanks in advance? You made a nice video!
Matching up an old part to a new part was a big worry for me. That's why I spent a little more money to buy a part specifically for my model of floor jack. Did you check the website Blackhawkparts.com? They might have what you are looking for. You will need the manufacturer name and model number. If that fails, its a matter of taking the old part to a hardware store and matching it. You might even have to buy several sizes that are close in size and try them all.
@@davidgpo It's almost the same jack as yours. America is too far away from Belgium, I have to do it via Ebay. I will measure it and if necessary obtain the correct parts via a drawing. And then you also have the new garage jacks at € 100, lower and just as strong.
@@den.staar124 I would contact them anyway. I'm sure they've had other requests from your area and they might have a solution for you. Good luck!
@@davidgpo A new one costs me 160 €(3 ton) , partly aluminum so that it is lighter and manageable and also lower. The weight of a car is too heavy to have any risks. A jack must be reliable!
@@den.staar124 I understand. The steel floor jacks run about $100 here. My channel is about repair and maintenance so we don't have to fill up the landfills with repairable equipment.
always put the flat of the plunger piston down, the max pressure is a down stroke of the handle, you want the flat surface sliding in the plunger groove on a down stroke where the pressure is bearing on the parts. And you want it greased.
Did I install it backwards?
@@davidgpo seemed like it to me from the video. You want the flat of the pin facing down so when it slides against the plunger piston U shaped thing, it offers the most support. And also grease it good.
Any idea how much this jack is worth in working order?
My Pro lift model # G-2593 raises up fine, but won't hold a load. Do you think it needs a total main cylinder rebuild, or just one of the easier to replace o rings. I already tried adding oil and bleeding it. It does seem to leak fluid out of somewhere, but not on top.
Are you sure you bled the air out properly? As you can see in my video I had problems bleeding it properly. It took me a long time. There are excellent comments on how to bleed properly. If you have properly bled the system, I think you may need to install a seal set.
@@davidgpo I'm not 100% sure I bled it correctly, but I tried it many times and it did not help it hold weight at all.
@@jimcapelli1431 When I lost my check balls the lift wouldn't even raise, so I think your check balls are in place. I think you either have air in the system or fluid is leaking around your piston seal.
@@jimcapelli1431 Try this: without lifting anything, pump up your jack until it reaches the top limit. Then pump it up about 7 or 8 times. Then release the valve to lower it. Now try jacking up the car and see if it holds.
@@davidgpo I'll try that. thanks
How to set up the e holes witch way to put the little ball bearings in hole
Small check ball goes in first then the larger check ball. I just can't remember where the spring goes.
David, I have that same car jack. It did not lift so I went the bleed route. That did not work and I raised the plate and filled the reservoir. Now the jack is half way up. OK I know that the reservoir is full and can not take any more. However when I pump the jack to go up some more it goes up when the handle is pushed down then goes down when the handle is raised. So each up and down of the handle cancels out. Any idea why that happens. Thanks. Richard
It sounds like the check ball(s) is/are missing. Did you make the mistake that I made and drained the fluid through the check ball opening and loose the check balls?
I will check into that and let you know... Thanks@@davidgpo
In the future it is a lot easier if you take the handle and handle gear assembly out of there. And separate the two, handle from gear assembly. Then when you get your power unit assembly back in place. You can install just the gear assembly - not the handle. There is a little protrusion on the gear assembly that may block you. To beat that I've had to use a (1x1)tick x12 inches long wood to prop up the saddle arm of the jack in the air to reinstall the gear assembly. Now to get that spring back on the gear assembly. I use vice grips. Put your vice grips on the spring to hold it, not crush it - just hold it, and have the front of your jack against a wall, or something solid, push the spring in forward toward the front and screw your bolt on the side it. I have found that to be the easiest way to get that spring back in there. Then reattach you handle to the gear assembly. Good video anyway.
And don't use brake cleaner. Brake cleaner will deteriorate your seals.
5 years ago, $3 a quart.
2022 $16.48
Como se llama ese gato o referencia con su marca, es que necesito el kit de orin
The cats are using the litter box.
hi, I have a floor jack identical to yours. I had to unscrew the screws you say not to remove and now I no longer know how the springs and balls are arranged, can you help me? I would be enormously grateful to you. Thanks in advance. Greetings from Italy, Matteo.
The small ball goes in first then the larger ball goes in. I can't remember if the spring goes in before or after the small ball. Try it both ways. It's possible the spring may be too large for the smaller bore size for the small ball?
@@davidgpo Thank you very much for your answer, I found the problem! There is no spring! Can you tell me what kind of spring it takes? The size or any other information to find a similar one? Thanks again!
@@GTman1972 I don't know what kind of spring that requires. Check with the company that provides the rebuild kits or check a schematic drawing.
@@davidgpo 😞😞😞😞
So for a full rebuild... Get 2 kits? Lol.
What to do if you already F'd up and removed the plug w? The spring n ball?
Put them back in.
As with most manufacturing, they want you to just buy a new one
Are you suggesting not to rebuild them? Because I bought a new one, I thought the seal kit was overpriced. It was close to half of the cost of the one I purchased, additionally my casters were shot. Judging from this person's response to some of the comments, he likes fixing things and keeping them for a long time. Don't get me wrong, there's nothing wrong with that, the more you learn them better.
I don’t buy new stuff
I look for older stuff to fix
Donde podria conseguir los repuestos de ligas
Check on line
De dónde vives
These floor jack rebuild kits got to be the biggest rip off. Charge people like almost 50% of the jack for some 99cent rubber seals. My old seals disintegrated causing my piston to just slide right on out entirely. I'm just going to invests in a newer jack. This Pro Lift wasn't that great of a jack to begin with.
The trick is finding the proper size O rings and seals. You may want to donate your old jack to someone who wants to spend the time to repair it. Best of luck!
Agree. Went on Amazon and ordered O-Ring kits for less than 10 bucks.
@@LCDRmikecorrigan do you have the link?
the white oring is teflon? orthe same material(different color) than the black one?
I don't know.
@@davidgpo teflon is hard and black oring is spongy, didnt you install those with your hands?
@@serchmarc Why don't you contact the supplier? They know their product much more than I do.
@@davidgpo nevermind son!!! seems you are the tipycal fame boy without the effort
The hardest part is getting the right rebuild kit
That's true, I wish we had the specs for the O rings. The value of the parts is only a couple of dollars.
I have one branded Taskmaster 2 1/4 ton, can't find a kit anywhere in the uk😢
@@johnblair2362 To the folks that want to go directly to an "O" ring supplier for parts: Abom79 has a great video on how to measure grooves and order "O" rings from suppliers; Hercules Hydraulics or CRC, see the 19 minute mark at czcams.com/video/oeBujPNH4gU/video.html
@@davidgpo if you just need the piston seal there are plenty of suppliers online with a huge range of sizes.
@@johnblair2362 This issue is determining the proper size. Thanks!
Диаметры шариков?
21:32 so tight
Do you leave the loquid wrench in the jack
what is the seal kit # for this jack ?
#OMG48903-0000 from Tools & Hydraulics Inc., Chattanooga, TN. It should be listed on their website.
@@davidgpo thank you
we need how to, on check-ball adjust. anyone can do everything else.
I don't think there is an adjustment for the check ball.
I mean NETFLIX 😁
Refilling oil to all Trolly jack is terrible...
Egg rolls
Im not too sure bout the nail polish
These jack o ring rebuild kits are price gouged to the price of a new jack. Bastards
I agree, If we had the specs for the "O" rings and seals we can get them for a few dollars.
@@davidgpo it's daylight robbery my man i got two jacks that need rebuilds and after watching this i might just chuck em out. i have to admit i admire your patience
just measure the orings with a caliper and go and buy them over the counter for pennies..........@@oldschoolfoil2365
Quand je lie la traduction je suis mdr
Quick fix here- place on side of road- go buy another!
You must be new here!
filling the oil back BEFORE reassambly could have been a good idea....
with 2 you get eggroll.
And 3's a crowd.
There just copy cat of American jacks
A 24 carat clown is my humble opinion.
Does this mean that you are not going to subscribe?