Bobcat Hydraulic Cylinder Repair

My first how to video showing how to replace hydraulic seals on a Bobcat 743
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/ fitzsfixes

[@alvinconner9004]

Thank you for your help, I replaced all my rings with no problems at all.

[@rdavit]

Thank you for posting this!!!! I just re did the seals on my Bobcat 753 tilt cylinder. The use of boiling water on the inner seal is the way to go!!! What a pain in the butt that was. Took about 3 hours total, but solved a leak we've had for 6+ months.

[@crcdistribution878]

Happy to help you with your next cylinder rebuild. Check us out: www.crconline.com/

[@LifestyleRenovations]

Thanks buddy, I'm not looking forward to doing this on my backhoe, but anyway this video is very helpful for me to know what I'm up against, I appreciate you taking the time to make it.

[@Mahindra4550Repair]

Way to go man! I giggled when you mentioned the crucifixion part. You got it done & that's all that mattered! Great video!

[@MDHVP]

Thanks for the video; made it easy to rebuild my own. No surprises.

[@diazaa]

You did good. The nomenclature is incorrect, but not necessary. Awesome job man!!! I'm familiar with cylinders, more so than my wowen!!! OUCH. Good vid.

[@bucko60]

I used to assemble those directly at the factory about 10 years ago

[@unassuminggentleman]

Good Video; a few recommendations... Second, when disconnecting hoses, you should have two sets of caps (female) and plugs (male) with the most common sizes on BCT Double Acting Cylinder being JIC (a fitting standard) 3/8", 1/2", 3/4"; this will aid to minimize a messy, hazardous work area and harm to your environment...

[@italocardenas5456]

Thanks for the video. this will be very useful for me

[@judeseamus]

Thanks for posting!!

[@mirza6611]

Your videos are realy helpful. I am facing problem with fuel gauge on s130 the pointer stops on red point and never goes up even the tank is full

[@MrR2WW]

When I did the seals on the front tilt cylinders of my bobcat, the torque spec from bobcat was 100 foot pounds + 135 degrees or two flats on the nut, my bobcat has two cylinders but they look identical to this one.

[@panchovillaz8004]

Thanks amigo 🙏 I need fixing me

[@Musicano88]

Very helpful. ... thanks

[@unassuminggentleman]

Good Video; a few recommendations... First, the author is correct that removing a hydraulic cylinder can (and will) cause the actuated lever (ie arm, bucket, etc) to shift - this is where most violent accidents happen and I have had articles that end sadly posted in our lobby to attest; don't be a cowboy on this, block and secure your actuated lever with something more than a 2X4 board...

[@skynet000001]

Thank you, please make more videos!!!

[@LottsaLasagna]

I this guy still alive

[@fitzsfixes]

That was the point of this video. To be able to do it yourself without spending a ton of money and time at the shop. I would love to hear how taking it to a shop will save time and money??

[@unassuminggentleman]

Note: Mentioned hydrolysis, most common cause for seal failure; if hydraulic oil is milky, cloudy the sytem's oil should be changed with waste oil properly disposed with local waste mgt authority or a oil reclamation service; while factory recommended oil is PC, suggest the same weight but in a non-detergent option that is "friendlier" to seals; run the machine for twenty-thirty minutes every couple of weeks so condensation that's accumulated in the hydraulic system can be minimized...

[@RexSnoww]

Just a tip for next time your working under a load, secure it above and below to the ground in a way that is impossible to slip. It only takes one mistake when working on heavy equipment to enter permanent retirement.

[@dennisgunia7694]

A guy near me got killed when bobcat loader came down on him have to be careful I would put more than a 2x4 under arms I would rather be safe than sorry

[@crcdistribution878]

@@dennisgunia7694 Wow that's terrible. So sorry to hear that. Safety first, y'all!

[@Mattessj]

the control valve has a pilot to open check valve on the boom lift cylinders so there should be no creep when that tilt cylinder is removed...personally i use something to support the boom regardless...saftey

[@ALEXXTAR1]

Hi, you have some info about repair garage lift cilinders? Thanks for your help

[@pukki34]

Mine is leaking too. Seems pretty straightforward to service.

[@goa884]

Hi! Need your advice about your bobcat. I have tcm bobcat 533, and on my left back wheel oil smudges, so i think need a replacement hydraulic oil seal, but we find problem - we dont know how to how to disassemble hydraulic motor, maybe you can help us.

[@cbnx82703]

A safer method is to extend the boom then lower it extended , then relax the hydraulics with the machine off. Your 2x4 method is highly unsafe support. Known to fail without notice anytime besides not being sucured in position. Need to use safety rated chains or J-Bars or an F- Bar...

[@fitzsfixes]

first, nose hair and now concern for my safety. mom, is that you? jk, that was my first video years ago. I've come up with safer ways of working on my equipment. the nose hair on the other hand, I'll try harder next time

[@unassuminggentleman]

Good Video; a few recommendations... Third, when disassembling the cylinder, needed is a Pin Spanner Wrench (not BCT exclusive) ; removing the ALUMINIUM gland head (part rod passes through) with a pipe wrench, channels, punch can damage the head (even though not visible) compromising rod seal that take the shape of the seat they are seated; if your head is in the condition in the video, recommend having a made from Ductile Iron from a reputable machine shop as BCT aluminum option is ****.

[@crcdistribution878]

We sell pre-machined ductile head glands if you need them. Also, we sell solid ductile material if you want to machine it yourself.

[@unassuminggentleman]

Fourth, Do Not place your chromed shaft directly in a vise (remember the seals have to ride along a smooth surface), use nylon or 2X4 blocks inside your vise to secure the shaft assembly; you will need a O ring pick set or just pick set; Lowes and Sears Craftsman have sets with four useful angles for about $8usd; don't use a screwdriver; clean the gland head thoroughly (brake cleaner is popular with road mechanics) wipe down and let dry completely..

[@crcdistribution878]

Happy to help you with seals and cylinder components in the future. Check us out: www.crconline.com/

[@fitzsfixes]

@BanjoSpecial there isn't 1 scratch or pit on the whole thing. I think the video might just make it look bad.

[@rubenmartinez2525]

Have you ever replace the seals on the arms? Mine is leaking

[@dr420nrg]

I baught a rebuild kit on ebay with all seals and the outer cap for like $20. Hope that helps someone, think the outer nuts gets screwed all the time

[@crcdistribution878]

If you get tired of eBay... We would love to supply you seals. www.crconline.com/

[@unassuminggentleman]

Fifth, never boil seals. Seals are made from powder in an injected mold process so when you boil the seal...well common sense; the glass-filled teflon seal in BCT's (Usually gold color ring backed by Oring energizer) should be stretched at a minimum, use Ring Compression tool (Craftsman) lined with Shim (made from file folder) used to compress the seal approximately 20 min; that, with taper on tube end will assisting when "stabbing" reinserting the rod/gland/piston assembly into the cylinder...

[@crcdistribution878]

Would love to discuss other seal installation methods with you. Very knowledagable!

[@brandondodds4439]

What’s the part number for the seals

[@jonathanhuisman2144]

your front right tire (if you looking at the machine) is on backwards

[@BillOtinger]

Thank you

[@YerenaArturo]

Where do I buy the cylinders?

[@Ygggdrasill]

Are you in a submarine with diesel engine or a rocket Saturn V?

[@user-gi4lj4kj5j]

👍👍

[@loretolaurente5369]

How to replace seal cylinder

[@jamelofrazier]

Did have any problems with the bucket not holding a curl position after repacking the cylinder ?

[@fitzsfixes]

jamelofrazier not with the curl. But my lift arms wouldn't stay up. It ended up being the spool valve

[@jamelofrazier]

Thank you for the reply! I replaced the seals in the spool valve body already. I have problems with the machine before and after the spool valve repack.I was told it could be a loose nut in the tilt hydraulic ram.

[@isaacstro5911]

My wrench is called an impact and a socket.

[@burnts1enna]

I think you took a big chance getting the second pin out. You were causing the whole lift arm to shake and all you had holding it up was a slim 2x4 board. It could easily have slipped out or broke and the whole thing would have come crashing down, killing you dead. I would advise you to take more safety precautions when working on heavy equipment. Cheers

[@TempoDrift1480]

Word of advice on videos. At this point we are a third of the way through the video and we're not working on the machine yet.

[@fitzsfixes]

And the video is 8 years old....and my very first one. So chill out

[@TempoDrift1480]

@@fitzsfixes Oh man, I wasn't trying to be a dick, I didn't even realize the video was that old man, no worries, thanks for taking the time to show us Dude.

[@fitzsfixes]

@@TempoDrift1480 I'm bustin balls. All good. Thanks for watching. Cheers!

[@gavinpauld5507]

pipe wrench

[@Reaperofwind]

Cheating is how professionals do it, its called preparation.

[@RexSnoww]

You're lucky you didn't die at 5:35. The boom arm needs to be properly secured so it can't move up or down. When you pushed up on the boom arm to wiggle out the top pin you could easily make the 2X4 slide out of place and you wouldn't have been able to post this vid from 6 feet under.

[@fitzsfixes]

And just think how much more interesting the video would have been if I were chopped in half

[@crcdistribution878]

LOL

[@cbnx82703]

Change your camera angle to eliminate the up the nose hair view....

[@bbbustedflush]

Needed a good how to video but never got past a few minutes because of the constant noise.

[@kee_b]

Don't do this. Just go to Bobcat, pay the 100 bucks and get the rebuild kit which has ALL replacement o-rings, seals, and nut. The machine down time alone, not to mention fucking up that cap, is worth doing it right. And for God's sake, spend 12 friggin dollars on a spanner wrench from amazon to get that cap off.

[@fitzsfixes]

Cap was already banged up from the previous owner. The video is 8 years old. Amazon wasn't a thing yet, lol.

[@kee_b]

@@fitzsfixes My advice is intended for anyone performing this maintenance now, as it is still relevant.

[@mikeboston421]

maybe turn off the jet engine before taping?........

[@fitzsfixes]

Maybe turn your volume down. it was freezing that day

[@BanjoSpecial]

You need th change the shaft it looks bad.

[@DonSaliba]

تصليح سلندر هيدروليك

[@mattball8322]

BanjoSpecial l

[@gavinpauld5507]

3 hours to reseal a tilt cylinder? that's 300 bucks bra

[@fitzsfixes]

Bo problem Lifestyle.

[@bobswartout214]

400 ft pounds with a pipe wrench

[@yeahno1016]

Muti million dollar business. Garbage trucks , scissor lifts , dump trucks, and damn near any other BIG industry machine you can think of. You can make killer money. Only need common sense and a ability to weld PROPERLY and your retired in 10 years.

[@crcdistribution878]

Hydraulic repair is HARD WORK. Good people in this business.

[@hydraulics]

A 2x4? man oh man... fatality waiting to happen.

[@devicaparsram7351]

way to use a boom lock!!! come on bro you dont think those arms could crush that 2x4 let alone your bones and kill you????? wtf man. i have heard to many stories of people getting crushed who have been working for bobcat for years.... slippery slope my friend

[@ooi5906]

دبشه

[@cbnx82703]

Lol at least its healthy safe nose hair!

[@fuckyoucc8]

So noisy!! louder then your mumbling!! You did it during cyclone, tornado or beside your workshop there are big fish market??

[@fitzsfixes]

Thanks for watching

[@fitzsfixes]

Yeah sorry about that....and your women lol. Here we are a bunch of years later and I still don't know what anything is called!

[@crcdistribution878]

Call us next time. We speak hydraulics and can help you out with seals and cylinder components. 251-947-5200

[@farmerinchico]

Thanks for posting!