Re-Usable Hydraulic Hose Fitting Tutorial

[Ductape]

Am I the only one who will ask what all the hoses you are making are for????

Call me nosey !

 

[kennyd]

Am I the only one who will ask what all the hoses you are making are for????

Call me nosey !

You are the first

2 Projects:
1) HTL (hydraulic top link)
2) New 3rd function valve to replace my diverter valve that runs my grapple.

 

[Wayne County Hose]

The nut-nipple of the fitting (female end) should not be snugged tight but just loose enough to allow the nut to be turned for installation and correct alignment of the hose without binding.


Jim

This doesn't make sense unless I'm missing something. A crimped fitting doesn't allow for this, why should a reusable?

Andy

 

[Discount Hydraulic Hose]

A very informative tutorial. One question... Why should the stem not be snugged to the collar?

Larry,

We are using instructions from one of our fitting manufacturers that recommend a gap 1/32" to 1/16" of an inch between the collar and the stem.

The reason for this gap is to avoid overtightening which may put additional stress on the stem. Some people, if told to tighten a bolt until it's snug, will continue to tighten it "just to make sure" it's snug. If this happens, you may stretch the stem, putting stress on the fitting that is not only unnecessary, but could possibly compromise the integrity of the stem. Theoretically, overtightening it dramatically could create enough stress that might at some date lead to the stem snapping off in the hose.

The gap eliminates this possibilty, so the gap is a good thing.


Ken Hutchinson
Discount Hydraulic Hose.com

 

[SPYDERLK]

Larry,The reason for this gap is to avoid overtightening which may put additional stress on the stem. Some people, if told to tighten a bolt until it's snug, will continue to tighten it "just to make sure" it's snug. If this happens, you may stretch the stem, putting stress on the fitting that is not only unnecessary, but could possibly compromise the integrity of the stem. Theoretically, overtightening it dramatically could create enough stress that might at some date lead to the stem snapping off in the hose.

The gap eliminates this possibilty, so the gap is a good thing.
Ken Hutchinson
Discount Hydraulic Hose.com

Thanks Ken... Sad... I was afraid that might be it so I used snug rather than tighten. Degrade the assembly by leaving a gap to protect against overtightening by the clueless. It is difficult to explain how to know when to stop, so stop before they even touch. I will go ahead and snug mine to unify the assembly as it should be.
larry

 

[dcyrilc]

Thanks Ken... Sad... I was afraid that might be it so I used snug rather than tighten. Degrade the assembly by leaving a gap to protect against overtightening by the clueless. It is difficult to explain how to know when to stop, so stop before they even touch. I will go ahead and snug mine to unify the assembly as it should be.
larry

Companies have to try to make things stupid proof these days. Look at the guy who sued a motorhome company and won because he put it on cruise control and went back to make a cup of coffee. Need I say more? CYOA!

 

[Wayne County Hose]

I checked the Weatherhead instructions and they say to assemble them until the 2 halves touch. I guess either way would be acceptable as long as you don't overtighten as Ken says.

 

[J_J]

Not trying to be a smart guy here, just want it to be right when some noobie searches. Once the fitting has been removed, the hose should have the end cut off before a fitting is installed again.

I completely re-plumbed my Case 310 dozer with these fittings. Trust me, the larger fittings are not cheap.

Hey Brian Very nice work of the restore. What did you use to degrease all the metal before painting? Did you use a Case factory color, and if so, where did you get the paint?

 

[Low Bucket]

Look at the guy who sued a motorhome company and won because he put it on cruise control and went back to make a cup of coffee. Need I say more? CYOA!

What does this have to do with this thread?

It just ruins the whole thread.

 

[Discount Hydraulic Hose]

Companies have to try to make things stupid proof these days. Look at the guy who sued a motorhome company and won because he put it on cruise control and went back to make a cup of coffee. Need I say more? CYOA!

Just to be fair, that story is a myth. No evidence has been found to back up this story, or any of the others that were circulated in an email a few years as winners of "Stella Awards" (named after Stella Liebeck, the woman who sued McDonalds because their coffee was too hot).

Stella's story is true, and she won her lawsuit. The other stories were all found to be fiction.

As far as making things "stupid proof," it's kind of a necessity if you're in business.