NH 3930 Power Steering Cylinder Rebuild

[@alabamathrifter365]

Hey brother, great job on the video. Thanks for posting it. I have a New Holland 4630 that was leaking from the same place as yours. Just finished taking the shaft out and about to clean everything good and put all the new seals in and get her back together again. The two things I learned that helped a lot was tapping the threaded in further into the cylinder to be able to access the retaining ring and the heads-up about where that extra o-ring went. That had me scratching my head until I saw your video. Take care and God Bless you. Rick

[@jobmarshall1950]

Your 3930 NH video saved the day for me. One thing that I tried was to use a hair dryer/blower to warm-up all the seals, especially the blue one that went inside. Made it soft enough to easily install.

[@cowcowsam1]

Wow Jay, I think you did an awesome job taking that hyd cylinder apart and putting it back together. I am glad the dealer had the parts. Nice video, Pete

[@MrJbooher77]

Thanks for the video... Just did my New Holland TT60a. Same cylinder as your tractor. Wish I was talented enough to make videos. I tried once with a bbq one. I gave up. My wife will be happy she can go back to bush hogging till she tears up something else. Haha 😂

[@klc317]

Good work! A little time and common sense sure saves alot of money!!

[@farmboy30117]

Thanks, this was only the 2nd cylinder I've had to rebuild. The first was the Kuhn mower lift cylinder. Sounds like a good deal on the JD shaft. I know parts are expensive!

[@alabamathrifter365]

Just subbed your channel and hit that thumbs up too. One question, did you replace the little copper washers that go on the lines when you hooked them back up?

[@farmboy30117]

Thanks for the sub! To be honest, it was so long ago that I can't remember. I usually will change copper washers if I have some because they're designed to crush seal. I have had some luck reusing them too.

[@charlesjenkins7568]

Thanks for you video! It helped me a great bunch! I was able to disassembly my cylinder with any problems but, I checked the shaft and found it to be slightly bent! It appears t have an approximately 0.120 to 0.125 bend. The shaft feels to side trough the seals fine. Should I rebuild the cylinder with that slightly bent shaft ?

[@farmboy30117]

If it was mine, I would try to rebuild it. If it fails, then replace it.

[@EngineerLikesFarming]

there is always something...good job!

[@wilsonsimpson3410]

How do you drive the threaded part down to get out the retention clip?

[@teamlaststall4310]

Great video - I have a New Holland 3415 with a leaking power steering cylinder. How or what kind of tool did you use to get that end cap off with? My re-build kit will be here in a few days. Thanks!

[@farmboy30117]

Thanks! I really don't recall what I used, but I don't remember it being overly difficult, except getting the inner seal in it.

[@teamlaststall4310]

farmboy30117 Update - today I re-built the cylinder. Thanks to your video I had zero, yes zero problems with the o-rings and seal change. With that hard plastic inner seal, I let it soak in some hot water before I installed it. Pinched it in half and it went right in. Once again, thanks!

[@farmboy30117]

That's great! Glad it helped :)

[@isaiasdelafuente5437]

Thank you my friend

[@farmboy30117]

Thank you too

[@roysaenz5738]

Hey Farmboy great video. I have a 3010S and I had the same problem but I took mine off and sent it in and had it fixed for 120 bucks. After seeing your video, next time I will try it myself. Thanks BUD.

[@farmboy30117]

Thanks Roy! It's not too hard except bending the inner seal to get it to fit in the hole.

[@farmboy30117]

Thanks for the tip. I have also used a cream hand degreaser on pants and that seemed to work. It's an old shirt so no biggie.

[@farmboy30117]

Thanks, I think it has about 1300 hrs now. If I have to bush hog again this year, I will.

[@theduke168]

I have a 3930 made april 1998 with the same issue, you mentioned the “”earlier model had a different cylinder””. What year is yours, and what year would be an “”earlier model””. Thanks

[@farmboy30117]

Ours is a 94 model I believe. I can't remember exactly but it seems the part number was different. You should be able to get it from a New Holland dealer.

[@farmboy30117]

LOL, those inner seals can be fun

[@rnich35180]

What's next for the 3930? Fixing the leaking brake?

[@curtishoffpauir9612]

fold the center seal helps installation

[@farmboy30117]

Yep, it's about the only way to get the inner seal in ;)

[@cableholder100]

How many hours is on that tractor now? And will you make another bush hogging video? Thanks and great video!!!

[@farmboy30117]

Thanks Pete! It wasn't too bad after I figured out how to get the ram out of the cylinder LOL

[@farmboy30117]

Thanks!

[@farmboy30117]

Thanks man.

[@joejones419]

My 3930 will not left far enough what can I do?

[@farmboy30117]

Thanks, it sure does!

[@1988MowerMan]

It looks like you had some luck and the seal kit was in stock. Nice job.

[@bama18ful]

Do you know the part number for the seals for the power steering?

[@farmboy30117]

You can call your local New Holland dealer (or Messick's online) but you'll need your tractor serial number to get the correct part.

[@jerrylambert8794]

Did you have to bleed any of the components ? .

[@farmboy30117]

no, just turn your steering wheel from left stop to right stop a few times, should get all the air out. then check the fluid level.

[@jerrylambert8794]

Thanks , you'e a good ole farm boy . I appreciate everything you do !. God Bless & be safe & well .

[@mossman381]

Good video

[@farmboy30117]

I was very lucky it wasn't the old style. That kit costs $177...Thanks!

[@dude26999]

I have the exact same problem, do you remember the rebuild kit part number?

[@farmboy30117]

Part # 9966100

[@dude26999]

farmboy30117 I got the parts kit but when I installed the blue internal seal it doesn't fit snug on the shaft. it leaks worse than before. Was there any specific direction that the seal was installed. I see a groove on top of one side. I put the ringed top section facing outward towards the scraper. The supply company is sending me another kit to try another blue seal, we'll see. by the way I figured out a way to install that seal in a few minutes

[@farmboy30117]

I really don't remember which way it's supposed to go. Hopefully, the next kit will work for you.

[@theduke168]

I have a 3930 made april 1998 with the same issue, you mentioned the “”earlier model had a different cylinder””. What year is yours, and what year would be an “”earlier model””. Thanks

[@allied1394]

Lets see some bush hogging I gotta do some bush hogging myself my bush hog is in my back field and there's a bridge I need to go over to get it the bridge collapsed into the pond after 20 years of service so I'm in the process of rebuilding it

[@1995jug]

Good job on cylinder I know all about leaking cylinders seems like all my equipment that has a hyd. cylinder leaks some. I fixed my worst leak other day on my john deere, the load control shaft and bushings I priced the shaft at jd dealer 350 dollars I said hell no its little over 19'' long less than a inch in dia. found one on ebay for 150 that's high but best I could do, people with older jds know what I'm talking about bad design.

[@farmboy30117]

That sucks. If I have to bush hog again this year, I'll make a video.

[@farmboy30117]

Yes, hopefully this fall after hay season

[@everettwestbluegrass3378]

does anyone know how to open a 480 case power stirring cylinder in order to rebuild it.

[@stephenhansen8906]

Hello everyone I have a Ford 4000 that has the power steering assist basically a left hand power steering cylinder anyways it's leaking like this but I found out the cylinder shaft is bent can anyone help me find a shaft for it thanks for any info

[@farmboy30117]

Aw, that's not good! Have you tried Yesterday's Tractor? They might be able to find a used one, or Messick's? They have an online parts catalog.

[@TB-sv3nw]

Ya wanna do mine now ?

[@davidwilliams332]

Same thing on my farmtrac