5010 Gear (No Cab) Leaking Power Steering Fluid

[RAHarden]

Im hoping -2 haa an improved oil seal, too. My tax refund will have to pay for it.

I hope they did an improvement on #2 unit. I am working with a hydraulic shop that is close by. That seal company I spoke with wasn't sure about the quad ring being used, but they didn't know what to recommend, or would fit. They didn't have a tech department like their website says. I found all the seals, quad ring and O-rings on the internet, I just wanted a hydraulic repair shop's advise. I'll post my results, soon, I hope.

 

[DirtHauler]

Im hoping -2 haa an improved oil seal, too. My tax refund will have to pay for it.

The "- 2" is the one I took apart to photograph & measure the seals. As you can see, there's no "improvement". I believe that since they use this part in several tractors that they are just assigning one part number to cover all and thus this is a "superseded" part #. So, you (we) spend our hard earned money only to end up with the same thing and (as I've stated earlier ) you only get a 90 day warranty on new parts.

 

[Masempine]

Ill check for leaks when i get it installed. I may do it before i put the steering wheel on and make a video. Do you just tighten the hose connections pretty tight or do you torque them.

 

[RAHarden]

Ill check for leaks when i get it installed. I may do it before i put the steering wheel on and make a video. Do you just tighten the hose connections pretty tight or do you torque them.

Each hose connection should have an O-ring, at lease mine did. The O-ring goes on the fitting ends at bottom of the SINJIN unit. Make sure the O-rings are installed. If not, new O-rings should be installed. You could use the old ones, but I wouldn't. With O-rings being used in the fittings, just tighten these fittings tight, or wrench tight. I don't believe a torque wrench is necessary. The O-ring does the sealing and the fitting goes metal to metal when tight. That's my opinion only and if someone else believes torqueing these fittings is proper, that's fine with me. The picture shows the O-rings, somewhat.

 

[RAHarden]

The "- 2" is the one I took apart to photograph & measure the seals. As you can see, there's no "improvement". I believe that since they use this part in several tractors that they are just assigning one part number to cover all and thus this is a "superseded" part #. So, you (we) spend our hard earned money only to end up with the same thing and (as I've stated earlier ) you only get a 90 day warranty on new parts.

I assumed SINJIN had improved the seals being used. I think you're right about why the changed the part number. TYM Tractor did the same. I priced all the seals and O-rings for this unit and it will cost around $20 for them, and that's for seals made of a better material, higher temp. There is nothing wrong with this unit, other than crappy seals being used and a poor seal design. You would think a company with the skill and intelligence to design and build these PS units would be smart enough to figure out the proper seals required to make it leak proof. I guess not. Job security for South Korea.

 

[Masempine]

Ill make sure the new PSU connections have orings. If not i can get them at Parts City (formerly NAPA)

 

[DirtHauler]

I assumed SINJIN had improved the seals being used. I think you're right about why the changed the part number. TYM Tractor did the same. I priced all the seals and O-rings for this unit and it will cost around $20 for them, and that's for seals made of a better material, higher temp. There is nothing wrong with this unit, other than crappy seals being used and a poor seal design. You would think a company with the skill and intelligence to design and build these PS units would be smart enough to figure out the proper seals required to make it leak proof. I guess not. Job security for South Korea.

Maybe when Kim Jong-un takes over South Korea things will greatly improve.................. NOT!

 

[RAHarden]

Kim is a fool! I don't think he would know what a seal is. Probably thinks it's a fury sea animal. Hey DirtHauler, when you ordered your seals, what did you purchase to replace the quad ring? Another quad ring? I found Viton quad rings and the correct size, but I was hoping these seal people could come up with a better seal. Even if it would require machining the housing in order to accept a different seal. I looked at Parker Hydraulics website. They make all kinds of thing, including PS units like what we have. I looked at several of their unit schematics and the inner seals they use are not quad rings. In fact, they don't even show quad rings being used on a rotary shaft. I sent off a letter to their technical department. They have several seals that are very close to what we need. I hope they have some good advise. http://ph.parker.com/us/en/rotary-seal-praedifa-series-or-polon/or022003300161b

 

[Masempine]

I went back to my original dealer to buy the PSU. Newer farmers coop dealer kept not returning my calls, mechanic not at work today, etc. They do more parts volume. Part already back yesterday. Getting it today.

 

[DirtHauler]

Hey DirtHauler, when you ordered your seals, what did you purchase to replace the quad ring? Another quad ring?[/url]

I know it was a little misleading, but after visiting three different bearing/hydraulic shops, non of them had the "quad ring" in stock but had everything else. All said they would have to locate and order it (quad ring) and it would be at least a week out! Well being in the middle of "tractor season" and a back log of work when this last HSU decided to go out, I threw in the towel and had a new HSU sent over night (kaaching!) So this why I have one torn apart and one still together. So one of these days I'll get around to re-sealing the one I took apart but for now I'm trying to finish all my other "winter projects" i.e. change out the new gear pump with another new pump; figure out if I can change out the PTO counter shaft bearings with out tearing the whole tractor apart along with the "honey do" list. I'm starting to feel like a collector of HSUs gone bad!

 

[Masempine]

My new one (PSU) has Orings and is really tight. Shaft doesnt turn easily like the one I took out. I hope that means the oil seals are tight!

 

[RAHarden]

I went back to my original dealer to buy the PSU. Newer farmers coop dealer kept not returning my calls, mechanic not at work today, etc. They do more parts volume. Part already back yesterday. Getting it today.

It's good to have a decent dealer, who at least returns your phone calls. The dealer that's the closest to me is high priced. I just bought a new engine oil filter, PN 006016642V91. It's the new filter Mahindra says I should use on a 2555 HST. It cost $45.94, which $15.75 was shipping and taxes. $30.19 is too much for an oil filter that looks like a Fram. Just like these PS units that leak, Mahindra needs to Americanize and get with the program.

 

[RAHarden]

My new one (PSU) has Orings and is really tight. Shaft doesnt turn easily like the one I took out. I hope that means the oil seals are tight!

Sounds good. A tight seal like a quad ring would have resistance. Good luck and I hope it last a long time.

 

[RAHarden]

Hi DirtHauler. I misunderstood you. My mistake. I found several websites that had a quad ring that fit the measurements I came up with. I was hoping to find a better rotary seal than a quad ring. When I worked at the nuclear plant, we had seal training. They actually had seal manufacturer reps teach the classes. These reps had some great info and I just remember them saying, quad rings were not your seal of choice for a rotary shaft. Well so far, I can't find a rotary seal that will fit. I would have to machine the opening inside the case to a larger diameter. That wouldn't be big problem. There's a local machine shop that could do this. I just need to buy the seal. I've been waiting for a guy, who runs a hydraulic business, to call me with some advice, but he seems to have taken a vacation. I saw this website. Quad ring 212 looks close, maybe right on. Standard Size Charts for Quad-Ring(R) Seals and X-Ring Seals Good luck!

 

[DirtHauler]

It's good to have a decent dealer, who at least returns your phone calls. The dealer that's the closest to me is high priced. I just bought a new engine oil filter, PN 006016642V91. It's the new filter Mahindra says I should use on a 2555 HST. It cost $45.94, which $15.75 was shipping and taxes. $30.19 is too much for an oil filter that looks like a Fram. Just like these PS units that leak, Mahindra needs to Americanize and get with the program.

WOW! Well like everything else in this country that you "have to use or have" the cost is inflated. I'll bet they're making little to no profit on these "new" filters. I just bought 4 of the "old" type "500 hr." oil filters at $25.00 each with free shipping via USPS. If you haven't installed that "new" filter yet, I'd take it down to a NAPA parts store (or the like), have them measure it and I'll bet they'd have a NAPA Gold, WIX or a Donaldson etc. filter. I buy and use the NAPA Gold air filters, primary and secondary, and are a little less expensive than the "factory name brand".

 

[RAHarden]

WOW! Well like everything else in this country that you "have to use or have" the cost is inflated. I'll bet they're making little to no profit on these "new" filters. I just bought 4 of the "old" type "500 hr." oil filters at $25.00 each with free shipping via USPS. If you haven't installed that "new" filter yet, I'd take it down to a NAPA parts store (or the like), have them measure it and I'll bet they'd have a NAPA Gold, WIX or a Donaldson etc. filter. I buy and use the NAPA Gold air filters, primary and secondary, and are a little less expensive than the "factory name brand".

Hi DirtHauler. Thanks for your thoughts. No, I haven't installed it yet. I was thinking the same thing you said about doing a filter hunt. My brother said NAPA will do this. I'm sure there is a match out there. I was going to take the new filter to ACE Hardware and see what the thread size is. They have large metric taps. I assume it's metric, maybe not? There could be a John Deere filter that would fit. Their engines are all foreign made. If I find something that works, I'll post it. Did you check out that quad ring I posted?

 

[Masempine]

To close this thread out for me, I bought HSU and installed it. No leaks but R and L were reversed. Fixed that. Started another thread to describe HSU replacement

 

[RAHarden]

To close this thread out for me, I bought HSU and installed it. No leaks but R and L were reversed. Fixed that. Started another thread to describe HSU replacement

I hope your new HSU last forever and never leaks. I'm still playing around with my unit, waiting for seal companies to get to me. They seem to be in no hurry.

 

[Masempine]

New one certainly feels tighter. I thought about shipping you my old one and the two seals I bought. One of my sons in law is a mechanical engineer and a grandson is pretty mechanically minded. I may see if they want to try putting it back together. Keep us up to date on either thread

 

[RAHarden]

New one certainly feels tighter. I thought about shipping you my old one and the two seals I bought. One of my sons in law is a mechanical engineer and a grandson is pretty mechanically minded. I may see if they want to try putting it back together. Keep us up to date on either thread

Thanks for thinking of me. Don't throw it away, but keep it and try to get it put back together. I'm still looking for a different seal type to replace the quad ring. I have talked to many seal tech people and all of them say a quad ring is not the type of seal for this application. One guy said it was probably used because they are cheap and will just last long enough to get out of the warrantee. I hope your new HSU last. Maybe SINJIN made the quad ring out of better material than the original seal ring. My quad ring was swollen or larger than is should have been. So this I know, is a big problem and hence the leaks. Stay in touch and good luck with the new HSU.