Too Much Pressure To Connect Hydraulics? Need Help

[ACMan]

I've got a TC40 with a front loader. I'm trying to hook the hydraulics up for the loader but I cant get them to connect all the way. I've not had this problem before. I've shut her off and even moved the stick around. Is there a valve or something I can pull to release some preassure in the lines?

Thanks

[jjcc246]

i had the same problem one time and i learned my lesson. When you disconnect the loader shut the engine off and move the lever in all positions befor disconnecting the hoses. To get the hoses back on after i didn't do this (and i don't know if this is the approved method) i unscrewed the quick dosconnects to release the pressure. you lose some fluid and you might get a little dirty but it works. you might want to try shoving something blunt into the quick disconnects to release the pressure. you'll get them back on after a little effort and i bet you don't do it again. good luck

[beenthere]

Press the ball tip on a board (watch for oil coming out) and it will quickly release the pressure.

[ACMan]

Thanks!
Your right I wont do that again.

Mike

[thcri]

Put a rag over the ends of the tips and then push the tips against the loader itself. You may get it to release the pressure in the lines. You problem is in the lines not the tractor. I have learned also the you should always set your loader on something hard. Mine bucket will roll itself back from the weight after a time. Also I roll my bucket as far forward as I can so the face of the bucket is straight down. This way the bucket can't move while sitting.


murph

[jinman]

ACMan, as Murph pointed out, your problem is not pressure from your tractor-side quick-connects. It's on the loader side. I connect to my tractor with the tractor running most of the time these days. As long as you shut it off and wiggle the joystick, there should be absolutely no pressure on the tractor side.

On the loader, sometimes if it's in the sun, the pressures can be tremendous. I had hoses get so much pressure that they unfolded from where I had them stowed. I actually bradded the ends of the quick-connect tips try to get pressure to release. It you don't get the pressure off with light tapping, don't do it hard like I did. Instead, just loosen the connections at the quick-connects and release some of the pressure. It can be very high, so expect some fluid and have a rag handy.

The only way I know of keeping this from happening is to get two female quick connect adapters and put them into your loader, one on the arms and one on the curl circuits. That way when pressure builds while the loader is disconnected, it can bleed out of the connectors. You'll have to put something under them to catch the drip, but that's better than struggling everytime you have to reconnect.

[thcri]

Here is a picture of Mrwurm's idea. It is not a picture of my loader but this is how I unload mine. This way the bucket can't move.

Now maybe with your set up you won't be able to do this? Not sure.

Murph

[jinman]

Murph, on a curved-arm loader like the 16LA that ACMan has on his TC40, you have to curl the bucket up to get the arms to lift out of the adapter on the tractor. You can't roll the bucket all the way down because these loaders don't have the yoke to sit on. I'm attaching a picture of my loader removed. You can see the bucket is curled all the way up. The post-hole digger is sitting there to show that the loader doesn't move forward during removal.

[thcri]

Jim,

I guess I didn't read what loader he had. And I am not familiar with the LA series on they come off. So I wasn't sure. With mine setting it on ground the back of the bucket was heavier than the front for the back would settle in more there for raising the front, putting unwanted pressure in the lines.

But I can see on the LA then that my way of doing things won't work.

murph

[PineRidge]

Jim I know you wrote the book on loaders but we have always treated our 17LA loader a bit different and it has worked well for us.

We set the jack-stand down, tilt the bucket slightly down to lift the front tires, pull both locking pins, level the bucket, put the tractor in neutral, take our foot off the brake and pull the joystick backward. The TC-40D is moved in reverse by the cylinders as they extend. Once we are clear we shut off the engine move the joystick to equalize the pressure and disconnect the hydraulic lines including the grapple. See picture.

Hooking it up is just as easy as taking it off.

Different strokes for different folks.....