Those “do not adjust screws” are often called the overload bypass and speed bypass valves. The overload bypass is a safety feature that prevents the Jack from lifting if the load is too heavy for the Jack. Adjust the screw too far one way, the jack will no longer lift its rated capacity. Turn too far the other way, the jack will attempt to lift higher than its rated capacity, and then risks blowing seals if overloaded. In these “rapid lift jacks”, The speed bypass switches the jack from “rapid lift” to “power lift” when it encounters a load- I.e. the jack lifts fast when there is no load, and then it changes to lift slower but give more power (I.e. more hydraulic/mechanical advantage) when a load is applied (starts to lift car). Adjust the screw too far one way you lose the “quick lift” feature. Turn too far the other way and the jack will lose its power lift, so when loaded it will be much harder to lift, plus you risk blowing the quick lift seal.

@TunerwithKids

3 жыл бұрын

Thanks. Good to know. I have to make some adjustments to get that craftsman jack back to normal than. Right now it works and holds but takes some muscle to do it.

@thaddeuskevin1972

2 жыл бұрын

i dont mean to be so off topic but does any of you know a way to get back into an Instagram account..? I was dumb lost my account password. I would love any tips you can give me.

@denveralan4663

2 жыл бұрын

@Thaddeus Kevin Instablaster =)

@thaddeuskevin1972

2 жыл бұрын

@Denver Alan Thanks so much for your reply. I found the site on google and im trying it out atm. Seems to take a while so I will get back to you later when my account password hopefully is recovered.

@thaddeuskevin1972

2 жыл бұрын

@Denver Alan it did the trick and I actually got access to my account again. I'm so happy:D Thank you so much you saved my ass !

People who don't know what they are doing should not make videos. You would be better off watching videos from people who know what they are doing to fix your jack.

@TunerwithKids

2 жыл бұрын

Hey, I fixed mine using that snake oil so, yea.

@johnjkizer6399

Жыл бұрын

@@TunerwithKids all u did was replace oil rings, that’s not rebuilding it, u just had air in the system

@d711van1

Жыл бұрын

False repair. You have no clue

@aresident7745

4 ай бұрын

or sell the old one for scrap and get a new one. rather not die today kinda thing ya know? the hockey puck at the end on his jack was just the icing on the fucking cake for me. find a fucking proper spot to use a proper low profile jack or just use the fucking one in the spare compartment with your fancy impact wrench and socket sets. fucking kids these days man. and always use a secondary jack if you're going to work under a car that rides at 1" height unless you want to become a pancake the first time you find enough strength to break the seal on the oil plug, only to find out a little late that you didn't fix shit and are now either dead or clinging to life desperately only to die the second they lift the car.

@aresident7745

4 ай бұрын

@@TunerwithKids he never called it snake oil and no, you are wrong. you're probably seriously not even joshing responsible for at least one but i'd put money on more, serious injuries. people are thanking you for showing them how not to do something. have some self respect, delete the video and apologize for it like a real man.

I have the red Sears craftsman one had it about 20 years. Picked up an arcan low profile one about 7 years ago. Only drawback is that it's heavy. Thanks

Firstly I appreciate your effort, and I don't want to pick at your work. I didn't see if you put that one hard nylon o-ring back, it needs to be exactly where you had removed it from. People who work with pressure devices would know that it's for reinforcement of the o-ring. In some industries, it would be referred to as a "Back-Up" You shouldn't stack o-rings like that, would most likely cause o-ring extrusion and loss of pressure, or worse regarding safety. I do like the change out of fluid, I need to do this also. Again, I don't mean to come off as someone who just knocks someone's effort. I'm just thinking safety.

@TunerwithKids

3 жыл бұрын

There so many that I don’t remember. These jack seals are garbage on these. Most of my leaks appear to be the piston seals since it leaks after a few months from the bottom. I thinks it’s time to toss these and get some better ones. Probably pick up a low profile Daytona from HF.

@OddJobFix

Жыл бұрын

@@TunerwithKids That's the answer, mess up your jack and buy a new one.

@aresident7745

4 ай бұрын

pick at his work? he did the entire job wrong. this video is one of the only ones showing how to 'fix' this type of jack and it's completly wrong

Hi. I have exactly the same jack. I disassembled the middle screw with the 3 bearing. When I have pump all is go out and I don’t know how it was assembled :/ I tried some mounting but it didn’t work. When I lift it’s ok but when I lift a car it don’t keep the height. Can you give me assembly order? (I have 3 balls, one spring and a little hexagonal cylinder. I can give you photos if we can do this per mail. Thx

Maintenance General Periodically lubricate the Jack as described below. 1. Lubricate the joints and Ram (A5) with a light oil as needed. 2. Remove Handle and grease the lower end of the Handle where it rotates in the Handle Base (29). 3. Oil all lift arm linkages, front wheels, and rear casters. 4. Clean the outside of the Jack with a dry, clean cloth. 5. If the Jack is exposed to moisture, wipe dry with a clean cloth and lubricate. 6. Store Jack with piston Ram (A5) withdrawn (Saddle down), and in a clean and dry location. Purging Air from the Hydraulic System Air bubbles can become trapped inside the hydraulic system thereby reducing the efficiency of the Jack. Purge the air from the system if lift efficiency drops. 1. Turn the Handle 1-1/2 turns counterclockwise. 2. Remove the Breathing Screw (A37) by turning it counterclockwise. 3. Rapidly pump the Handle assembly several times to purge the air from the hydraulic system. 4. Close the release valve by turning the Handle completely clockwise. 5. Replace and tighten the Breathing Screw. 6. If efficiency is still low, remove Oil Plug (A39), and top off fluid reservoir in the Aluminum Base (A13) with hydraulic oil. 7. Replace the Oil Plug (A39) and repeat steps 1 ~ 5, above. 8. Wipe up any hydraulic oil overflow with a cloth. 9. Test the Jack as described under Operation, step 1 on page 4

@aresident7745

4 ай бұрын

wait.. are you telling me i shouldn't just wing it while also making a video acting like i know what i'm doing, putting hundreds if not thousands of people in danger inadvertently? 😆

Mine is leaking from the valve adjustment/ spinning thing. Is it the piston seals? It is weird because it worked couple months back and now just leaks.. Usually these fail gradually.

@aresident7745

4 ай бұрын

if it's aharborr freight take it back for replacement. if it's not and you want to fix it yourself, at least attempt to find a user's maintenance manual.

Hey there! Just wondering where you found all those O rings from?

@TunerwithKids

2 жыл бұрын

Harbor freight has boxes for like $7 or $9. The green ones are for R134a AC lines, I had some laying around.

does anyone know how to remove the piston on this jack? Mine is leaking from the piston. thanks.

@qivarebil2149

Жыл бұрын

Go to the gym for three years, then pull it out.

I bought some of those o ring from harbor freight but i don't know exactly the exact o ring i need and the one i match with the old one is not doing nothing every time i bleed the jack the o ring came out too so i don't know if im doing something wrong

@TunerwithKids

2 жыл бұрын

It’s crap shoot on O ring size. If all fails, try one that’s in it thicker but fit inner diameter.

cool, my HF slim fast jack is not leaking but bleeds down internally so it would be piston seal just like a cars master cylinder ,oil leaks back past a seal so you get leak down not from those little seals....good luck

I have a blue point 1.5 I need the schematic same as the aluminum your working on blue points diagram doesn’t have names to parts

I have the same blue jack I filled it and it stoped working . why. ??

@TunerwithKids

Жыл бұрын

Overfill or overtighten the valve.

It’s plain he dosent know what is what..

@TunerwithKids

3 жыл бұрын

Trial and error.

@thehiddentruth5665

3 жыл бұрын

@@TunerwithKids Half the fun it the T&E!

@RandomNameThatIsAvailable

2 жыл бұрын

@@TunerwithKids trial and error until the car falls on top of you. Please do more research and figure out this stuff before making KZread videos. That said if I ever took a Jack apart I would never get under a car with that Jack again.

@TunerwithKids

2 жыл бұрын

There’s your error, never get under a car with jack only, that’s why they make jack stands. A hydraulic jack for lifting, not supporting or to hold a car. 🤷🏻‍♂️🤷🏻‍♂️

@robertinman2530

Жыл бұрын

"Farmer method", "I haven't worked on one of these, but I can fix it".

Black toenails waiting to happen any day now!

Jeeeeez….I think I’m worse off after watching this.

Hello guys. I have a small Chinese 2 ton floor jack that serve me well the last 5 years. The problem (I think i have) is that it doesn't stay up. What I mean.. with no load I lift it and the next day Is down. It drops about 1-2cm every 20 minutes. I change the oil and do the bleeding procedure already. Also when I turn anticlockwise the pressure valve to lower the jack,the silicone filler cap pop up. I press the side of it with a flat screwdriver and always push air out,no matter how many times I do bleed it before. I pull oylut some oil and now the filler plug stays in strong but again when I press it air goes out. There is no leak outside. Is that normal or I should something else?

@TunerwithKids

3 жыл бұрын

Sounds like a bad seal or oring. Common for these cheap jacks.

Thank you. I have a similar problem and this helped.

@TunerwithKids

Жыл бұрын

Great to hear!

I work on hydraulics everyday, this guy is clueless! 😂

@robertgarrett7007

10 ай бұрын

He’s learning as he goes.

@robertgarrett7007

10 ай бұрын

He seems of normal intelligence. This just looks like his first rodeo, as far as jack repair goes.

Good Lord, dude, really?!!

That jack will never work again

This video was not helpful. Bihn seems very nice, but did not actually service these floor jacks. I was hoping to see piston and or HYD mechanism

This video could have been SO much better, if he just would have done a little bit of preparation and studying beforehand! Lots of “I’m not sure” and “I don’t know.” He didn’t even know which screw was the bleeder in advance!

What are you doing ?

@TunerwithKids

2 жыл бұрын

Filling oil and replacing leaking o-rings.

@eddiereyna1155

2 жыл бұрын

@@TunerwithKids be safe

You did not rebuild the jack, you simply replace o rings but your main problem was that you had air in the system, the o rings were not the issue to begin with

@qleap99

Жыл бұрын

Air in the system is responsible for the oil leaking out of the jack, moreso than o-rings?

@aresident7745

4 ай бұрын

@@qleap99 if the screws hold in the fluid and don't let air in, ie: if the machined parts were machined perfectly to spec like we are talking +/- .0001" (never gonna happen on a product this price range) you probably wouldn't need an oring and just some regular sealant grease would work just fine. now, china makes fine parts for the most part due to heavy demand and instead of trying to machine them perfectly (never gonna happen still) an oring is a cheap and effective solution rather than scrap out 99.9% of parts.

DUDE IFMBLEEDER IS OPEN AND YOUR PUMPING YOUR SUCKING AIR INTO THE SYSTEM THATS WHY WHEN YOU BLEED BRAKES SOMEONE HOLDS PEDAL DOWN SO NO AIR GETS SUCKED IN WHEN RELEASING THIS MUST FUNCTION IN SIMILAR WAY...

This is confusing as hell. First, it's one valve and then it's something else and then it's something else altogether. I'll go watch another vid and see if they have their terminology correct.

@TunerwithKids

2 жыл бұрын

Trial and error

Come on man why wouldnt you say dont take the middle valve out before the video started.

If you're going to tell people how to fix a floor jack, at least first figure out how to do it yourself. The screws along the base of the jack are not for filling.

Looks like you have no idea what you are doing!!! 😅

If you don't know what you're doing don't make a video pretending that you do!

@TunerwithKids

11 ай бұрын

Fake it til you make it.