Pinhole leak in hydraulic line on backhoe. There a clamp or sleeve fix?

[mike peyerl]

I have used reusable hydraulic fittings before for this on almost the same backhoe it works but they aren't cheap and changing the line isn't as bad as it seems just take the boom off

 

[NYlumberman]

A couple of observations. In my 50 years plus as millwright working on both mobile a stationary equipment I have never seen a way to repair a hole in a hydraulic pressure hose. remember the outside is just a cover. Second hose ends are not meant to be interchangeable, Weatherhead, Parker, whoever, have a specific series of fitting for each spec series hose. And that includes “no skive” reusable hose ends. I have cheated and in a pinch used a Weatherhead hose end on a Parker hose, got us going but eventually I had a major “cleanup on aisle 6”.

All education is expensive

 

[coast40]

I have hoses made locally if I need one in a hurry, but otherwise I order them from surpluscenterDOTcom. As someone suggested earlier, I got the hoses with the NPTM fittings and then use jic straight or angle adapters to complete the hose. It appears they now offer jic swivel fittings on the hoses. It's about half the price of having one made locally. If someone knows a better option please post it.
Hydraulic Hose Assemblies | Hydraulic Hose and Hose Assemblies | Hydraulics | www.surpluscenter.com

 

[gregcasedc]

Don't use the Amazon cheap hose patch. Those are for single wire hydraulic lines. Kubota uses 2 wire hoses. Here's the real hosepatch. HosePatch | The Schaibley CO.

 

[newbury]

I know one of the most difficult things for the newbie to hydraulics is matching hose ends. Is there any "app" that lets you take a picture with a cell phone which then will tell you exactly what matches that end?
And what has the TBN brain trust found as the most comprehensive "picture" mapping pdf?

 

[ptsg]

I know one of the most difficult things for the newbie to hydraulics is matching hose ends. Is there any "app" that lets you take a picture with a cell phone which then will tell you exactly what matches that end?
And what has the TBN brain trust found as the most comprehensive "picture" mapping pdf?

The best things to have to identify hydraulic fittings is a set of calipers and thread gauges.

Then, a good and complete chart so you can compare dimensions, angles, shapes, etc.

I have one I could share but it's in Portuguese. I'm sure someone in the forum can share one in English.

 

[Egon]

A couple of observations. In my 50 years plus as millwright working on both mobile a stationary equipment I have never seen a way to repair a hole in a hydraulic pressure hose. remember the outside is just a cover. Second hose ends are not meant to be interchangeable, Weatherhead, Parker, whoever, have a specific series of fitting for each spec series hose. And that includes “no skive” reusable hose ends. I have cheated and in a pinch used a Weatherhead hose end on a Parker hose, got us going but eventually I had a major “cleanup on aisle 6”.

All education is expensive

Trying to fix a hose leak is an exercise in futility!

 

[texaswren]

I would be extremely leery of patching or splicing a leaking hose. No, that's not quite accurate—I wouldn't do it at all, period, EVER, for any reason.

Flex hoses can degrade in ways that are not obvious. As the outside covering ages, it develops small cracks, which allow water in, which causes the wire to corrode, causing dangerous reduction in pressure rating. I've seen hoses where the outside covering has all but fallen off that were holding pressure without leaking, and I've seen hoses with only tiny surface cracking of the sheath that were seeping hydraulic fluid through the cracks. Either way, once it starts leaking, the degradation of the hose has reached a point where catastrophic failure under pressure is a real risk. I had a hose blow out on my round baler at well below relief pressure which, under different circumstances could have caused the rear door to drop (fortunately I was using the hose to purge the air from the bale tensioner cylinders). I had a steering hose that hardly seemed to have any degradation blow out a mile from home, leaving me without any steering.

I'm sure I'll have lots of people chime in with "I've spliced hundreds of hoses and never had one fail." Good for you. Buy a lottery ticket.

If a hose is damp with oil seepage, replace it. If it has a pinhole leak, don't even put pressure on it until it's replaced.
O'Reilly Auto around here makes hoses with Gates lines, as does A-Line Auto. The cheap import hoses I've gotten at Tractor Supply and Surplus Center don't last very long before the covering starts cracking.

 

[laurencen]

fixing hoses is never a good idea, one mentioned taking the hose to a repair shop and get it spliced, the crimp fittings are just the same as the hose ends, the shop we use will not splice because if the hose is degraded it likely is ready to leak somewhere else, just bite the gun and replace it.

steel lines I have brazed up but only temporary, also brazed fuel injector lines that have cracked but its only temporary to get out of a bind then replace.

 

[Gord Baker]

Here ya go: https://www.amazon.com/dp/B0D1RD7XYB/?_encoding=UTF8&pd_rd_i=B0D1RD7XYB&ref_=sbx_be_s_sparkle_ssd_img&qid=1732306127&pd_rd_w=kIUae&content-id=amzn1.sym.c22103a5-23b0-460b-bbaf-8872aab7e9b8:amzn1.sym.c22103a5-23b0-460b-bbaf-8872aab7e9b8&pf_rd_p=c22103a5-23b0-460b-bbaf-8872aab7e9b8&pf_rd_r=RFWBNSKZPCZ8SARG6C40&pd_rd_wg=4NGT9&pd_rd_r=58c5c30c-8feb-4178-b4d2-3798a81b308e&pd_rd_plhdr=t&th=1
60 bucks on Amazon. Re-usable hose connectors for repairing hydraulic hose. I repaired a damaged hose on my backhoe with these type of fittings.
Eric

Order 2 ! Nice to have a spare. A hose shop would be able to splice it. Replacement is best. I had a hot hydraulic line burst on a FEL. Unpleasant on the face.