Hydraulic Relief

[Arcane]

Deere 4115, 46BH.

When I removed the BH yesterday to mow the field, I forgot to cycle the BH controls, and today when I'm trying to get the BH back on there is so much pressure in the BH hydraulics that I can't get the couplings together. Is there a bleed mechanism on the BH? Some other trick to get the last 1/8"?

Thanks in advance,

RK

 

[Bedlam]

It might be more involved than what I can suggest. But hopefully its simple as taking a screwdriver or something to depress the part inside the connectors to relieve some pressure.This is considering that the cylinders don't have weight or constant pressure to them
But if there is force on the cylinders , causing it I don't think this would work.
Hope this helps.
Allan

 

[Arcane]

OK, the BH is on, and here's what I did:

I wrapped the male coupler in a rag to keep the hydraulic fluid from shooting everywhere, set the nipple of the male end down on a piece of wood, and I gave the back end of it (it a 90 degree coupling) a couple of love taps with a rubber mallet. Two taps and the pressure was off. I lost hardly any fluid, maybe about what's left in the bottom of your coffee cup when you thought you'd already had the last swallow, and look at it and decide it isn't worth raising to your mouth.

Allan, I couldn't have pushed the screwdriver hard enough to open the nipple, but your idea was what got me on the track of bleeding it manually.

I still wonder if there was a better way.

RK

 

[Bedlam]

Glad I helped some
I have a hard time expressing myself
I should have said the screwdriver , or even better would have been a wooden hardwood stick.
I also should have said I was thinking of the female end.
The way you did it is right. I struggled many a times with the same problem.
And from what I see on there, it is somewhat common and this method you used is the norm.
Depending on the setup, I usually will for example on my woods back hoe,After setting it, ready to take off, with the PTO off.(if the pump is PTO), or tractor off. move the levers around. work then every which way. Just be sure that it doesn't move . the idea is to relieve some of the pressure
each situation is different.
Maybe you can explain more just what coupling it is you speaking of.
Of cource if you used a metal can with cover, you could reuse the oil.
If there a better way. youll see it here. Lots of good folks with the same interest.
Allan

 

[Bedlam]

Glad I helped some
I have a hard time expressing myself. you should see my spelling. LOL Thank god for spell check.
I should have said the screwdriver , or even better would have been a wooden hardwood stick.
I also should have said I was thinking of the female end.
The way you did it is right. I struggled many a times with the same problem.
And from what I see on there, it is somewhat common and this method you used is the norm.
Depending on the setup, I usually will for example on my woods back hoe,After setting it, ready to take off, with the PTO off.(if the pump is PTO), or tractor off. move the levers around. work then every which way. Just be sure that it doesn't move . the idea is to relieve some of the pressure
each situation is different.
Maybe you can explain more just what coupling it is you speaking of.
Of cource if you used a metal can with cover, you could reuse the oil.
Allan