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Need new hydraulic hose, does any work?

ImmDanny

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Jan 9, 2020
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61
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Arizona
I sliced into my hydraulic line because it got tangled on the motor mount.

It’s a triumph lift, but does any hydraulic line work? Not sure if the fittings will be the same is my worry. It’s not leaking right now but obviously that extra layer of protection is there for a reason so I’d like to replace it to ensure to issue arise.

IMG_1196.jpg




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jjkrjh

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May 3, 2008
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Ohio
The outer rubber cover is there to protect the steel/cloth core of the hose. If the core isn't damaged the hose will still retain its strength.

Your best bet is to remove hose and take it somewhere in your area and have it made. Hydraulic hose's have different sizes, pressure ratings, conductivity, temperature ratings ect. Hydraulic fittings are different also pipe, jic, o-ring, metric, sae, parallel pipe ect. Most info will be on hose for the hose. Fittings should be matched up and orientation on hose if other than straight.
 

ericm

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Southern Oregon
Going to a place that makes hoses will cost less than getting one from the manufacturer, and they'll make it while you wait.

There's a local hydraulics chain here that I use. The hoses have always fit and worked well.
 

larry_g

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oregon
I sliced into my hydraulic line because it got tangled on the motor mount.

It’s a triumph lift, but does any hydraulic line work? Not sure if the fittings will be the same is my worry. It’s not leaking right now but obviously that extra layer of protection is there for a reason so I’d like to replace it to ensure to issue arise.

IMG_1196.jpg




Sent from my iPhone using The Garage Journal mobile app

That extra layer is there to protect your hand from abrasion from the wire mesh that is the next layer. Until the wire mesh is failing no worry. Tape it up and carry on. If you could see what some of the hoses look like on my old farm equipment you wouldn't even notice that small scratch.

lg
no neat sig line
 

Mr. T

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Sep 4, 2013
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636
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Central PA
That’s a toss up for me. Looks like a $30 hose from my local shop, but if the ends are exotic it might confuse them.

It’ll be cheaper if you know what you need btw. If you go in and seem clueless, the price goes up. If you say, I need this hose with these ends and an OAL of such and such (you’re not making them do the work for you) then you’ll probably get decent pricing.

Hydraulic fittings can be tricky. They can range from very common to only one company based in Unobatinia makes them. If you know which one it is you’ll be miles ahead in your dilemma of buying from the OEM or having one made to spec.
 
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I

ImmDanny

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Jan 9, 2020
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Arizona
Based on the response I'll leave it for now, if I notice it leaking then i'll take it off and go to a tractor supply store and see if I can find similar fittings or go to a shop to make one. I already reached out to the manufacturer but they said call on tuesday. I'll call just to see, if its 30 bucks then why not, but if they want something ridiculous i'll just keep it as it is.

My main concern is it for whatever reason bursting because of the slit in the sheathing.
 

OHMS LAW

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Jun 8, 2012
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Houston TX
Napa in my neighborhood makes hydraulic hoses. But yes the hose integrity itself isn’t compromised yet. But as a certified mobile crane inspector, and I was going over
The machine I would note that that hose needs to be replaced.
 

Fueler

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Urbana, IL
If you don't have a specialty hydraulic shop check the local farm implement dealers. They make hoses every day.
 
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nadogail

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Sometimes you have to pay a premium price for the 24 hour response and a well advertised name. There's no great difference between red and blue hoses, just as IMHO there is no perceptible difference between one brand of regular gas and another.
 

RPH

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Michigan Thumb
On mine it came missing the bulkhead unions. That when I learned the China guys used some kind of ******* thread fitting. Couldn’t get them. This was all the way to the Parker store to learn this. Have both male and female parts with you if possible. Check fittings for mismatch.
 

andyvh1959

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Feb 15, 2020
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Green Bay WI
Contrary to some of the comments; the cover is only there to protect the hose reinforcement. Wire braid under the hose cover very quickly rusts and fails if exposed. However, a hydraulic hose with no cover at all will hold pressure, as long as the reinforcement is not compromised. If you cannot see the wire under that scuffing on the original hose, it has not compromised the hose in any way other than cosmetic. The layline tape has come loose but that is only there to show the hose rating and size info. If the reinforcement wire is not visible, you can wrap the hose in heavy duty tape, like Gorilla Tape, and it will not compromise the hose pressure capability at all. Your choice how much you want to spend.

I've worked as a hydraulic hose engineer for Parker Hannfin for 25 years. I would not buy that same hose from the lift manufacturer, simply because any Parker, Aeroquip, Gates, Weatherhead, AlfaGomma, Ryco and other brand hoses are far better quality than Xufeng (made in China) and is honestly some of the cheapest built hose around. Parker makes hose in China also, in Parker facilities and made to Parker standards. For me, only Parker hose because I know it works in all applications I've used on mobile equipment from skid steers to underground coal mining, and everything else.

Could probably find a suitable hose match at any Tractor Supply store, just get one close to the same length of the original, with the same end connections. Since it is a motorcycle lift, speed is not the issue, so you could match that hose size, or even go slightly smaller and not affect the lift action much at all.

That info on the hose designates it a 2SN DIN spec hose, 8N means it is 8mm metric ID, or equal to 5/16 inch ID hose. DIN is the German hose spec, buts nothing about where the hose was built. The 2SN DIN spec in that size hose is working pressure rated to 3,125 psi. But I really doubt your lift is anywhere that pressure range. Many manufacturers over spec the hose if they can get it cheap enough. Most likely the system pressure is more like 1500 psi . The owners manual should tell your the rated pressure of the system. IF indeed the system is rated to 3,125 psi, then you could use any common 1/4 hose pressure rated as a SAE 100R2 hose, in 1/4" size it will be rated higher than your original hose. Or use a SAE 100R17 hose in 1/4" size it will be rated to 3,000 psi. If you really want to stay with the 5/16" ID size, either 100R2 or 100R17 hose will suit.

A lift, like a jack, is a very low duty cycle application, and does not require a 2SN rating. All SAE hoses are duty rated 4:1 for the working pressure. So again, either 100R2 or 100R17 hose will more than meet the duty cycle need. Many NAPA stores, any Parker Store, Gates distributor, Weatherhead distributor, Fastenal, can make you a matching hose assembly. But I doubt Fastenal uses any common brand name hose. But again, I really doubt you need a 2SN DIN spec 8DN hose, and you'll pay extra for that if you get the same spec.

If you want, PM me pictures of the hose end connections and I can tell you exactly the components needed to make a new hose assembly.
 
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nadogail

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The last time I had a fitting thread problem I went to the local Parker dealer and they were able find in their stock adapter fittings to enable me to use American pipe thread fitting connecters to German pneumatic cylinders.

The cylinders were free and the USA hoses are inexpensive.
 

TractorJeff

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Dec 8, 2013
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Elkhorn, WI
That looks like a car tire on the ramp, not a motorcycle tire.
I am guessing Triumph is the Lift name?
I do agree with andyvh1959!
 

andyvh1959

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Feb 15, 2020
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Green Bay WI
The cost to make a hose splice is nearly that to make a new hose. The hose will be get contaminated when cut and new ends crimped on. So it would need to be cleaned. Based on what I see of the hose in the picture:
1. If no wire reinforcement shows, only cosmetic damage, use it as is until its a better time to change it out
2. Change it out now, use the less expensive 100R2 or 100R17 spec hose.
3. Confirm the actual rated system pressure of the lift, versus that spec'd on the hose itself. Then match the hose to the lift system rating.

Any Parker distributor or Parker Store will have all the thread pitch gauges and data needed to identify any threaded hydraulic connection. I have all the gauges and data myself to match any application I encounter. If its an odd JIS spec, or an Ermeto (24 degree cone) connection it may take a day or two to ship in the product from our Louisville KY warehouse.
 
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metalmagpie

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Nov 1, 2011
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796
Location
Seattle
If you don't know how to select another hydraulic hose then you should not attempt it, or if you do you'd better do your homework and get it right the first time.

The main variables are pressure and flow. The hoses on my surface grinder only have to withstand 120 psi. The hoses on my Enerpac hand pump have to withstand 10000 psi. These numbers are really different! Look at your machine, call manufacturers etc.

The hose also has to be sized to allow the right amount of flow without adding excess resistance. It should be easy to match your existing hose.

This is on an overhead lift? Seems like you had REALLY better get it right!
 

andyvh1959

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Feb 15, 2020
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Green Bay WI
Like I mentioned earlier, this is a motorcycle lift, like a jack, not an overhead lift. VERY slow operation so flow is a secondary issue. The original hose is 5/16" ID, DN8. So the direct match from the most common hose manufacturers would be 5/16". Being it is a motorcycle lift there very likely is an orifice in the lowering circuit so it can only come down so fast. So a 1/4"ID hose will not affect that lowering speed, only slightly slow the lift speed if at all. The orifice should be built into the control valve and not a feature where the hose connects.

Pressure, like I mentioned earlier; that 2SN spec hose is rated to 3,125 psi, but I very much doubt the actual system pressure is that high. Check the lift specs and match the hose to the pressure and size. If the system pressure is only 1500 psi there is no reason to buy a higher pressure hose. All 2SN hose, all SAE hose is working pressure rated to a 4:1 safety factor. Given that I would be MUCH more confident in a Parker, Gates, Aeroquip, Weatherhead, Ryco, Alfagomma hose than the original Xufeng hose. Many off brand Chinese hose just barely meets the SN and SAE specs.

Yes the hoses on your Enerpac hand pump withstand 10,000 psi. BUT, Enerpac typically uses a 2:1 safety factor hose for power pack applications, because the applications are not impulse/spike type pressures. The hoses on my electric/hydraulic Enerpac unit are also 10,000 psi rated hose, but the hose is built just the same as the 5,000 psi hose. Just a much lower safety factor because a jack or lift is a very low duty cycle application.
 
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csp

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Franktown, CO
Like I mentioned earlier, this is a motorcycle
lift, like a jack, not an overhead lift.

Sure looks like a four post automotive lift to me, based on the width of the tire you can clearly see parked on the it, as well as part of the body.

That said, those are slow too.
 
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