How tight a curve is ok on hydraulic line?

[homesteader13]

In addition to those short little 45° elbows giving you plenty of extra slack in the lines, it will also get them higher up off the ground too.

 

[mikester]

I've been trying to find out if my hydraulic lines are running too tight a curve. I can't find any guidance online that I can understand, but i sure don't want them to be at risk of rupture. I'm attaching pictures if that is helpful, but would appreciate it if anyone has advice on this. Thanks.

Something looks totally wrong to me in photo 1 like the hoses were attached to the wrong side of the bracket or the bracket was installed wrong

 

[wdchyd]

Something looks totally wrong to me in photo 1 like the hoses were attached to the wrong side of the bracket or the bracket was installed wrong

Yes, depending on how and what moves maybe the hose just needs to be straight and made longer to match the other hose.

 

[Diggin It]

We can't see the other end of the hoses or the routing. I'm wondering if there's more slack somewhere that can be pulled down to alleviate the tight curve.

 

[Deepdrop]

Something looks totally wrong to me in photo 1 like the hoses were attached to the wrong side of the bracket or the bracket was installed wrong

I can send a picture from a different angle if that would help make it clear. This is the bracket that holds the hoses my grapple connects to. The tractor is just a few months old. The first installation by the dealer had the grapple hoses getting banged and frayed by the grapple, so they moved and adjusted the bracket. If there is something truly wrong with it, I'd want to know. I can tell you that there is a slow leak coming from the area of the bracket and I have yet to pinpoint where it's coming from.
As far as the hoses, I'll see if I can find specs on a website, so I can show it to the dealer and have him repair it if it doesn't meet specs for degree of curve.

 

[Deepdrop]

I tried that but there wasn't enough to make a difference. At first it seemed like it would help, but it got pulled back when I hooked it up and ran it.

 

[AWSubie]

Minimum bend radius for single braid hose:
3/8 ID = 4 inch radius
1/2 ID = 5 inch radius

Minimum bend radius for multiple braid hose:
3/8 ID = 5 inch radius
1/2 ID = 6 inch radius

 

[s219]

Thank you all. It looked too tight to me. I hate being in the position of having to keep asking my dealer to fix things on a brand new tractor.

If that is a new tractor then someone at the dealer needs to be educated. That is amateur work right there. If it came that way from Kioti, even worse.

 

[AnotherBueller]

50 years ago I was an aircraft mechanic for the air force. The rule of thumb I remember is that no hose bend should start at or next to any fitting at any time, including when at full extension and retraction. That causes extreme forces on the hose while in use.
I used toilet paper to find small leaks. With system depressurized, dry the hose, wrap the paper around where you think the leak maybe, pressurize the system, run it through a full cycle, depressurize and look for wet spots on the toilet paper.
I think Awsube has the bend radius right.