This site uses cookies to maintain login information on FarmallCub.Com. Click the X in the banner upper right corner to close this notice. For more information on our privacy policy, visit this link: Privacy Policy
NEW REGISTERED MEMBERS: Be sure to check your SPAM/JUNK folders for the activation email.
154 htydraulic leak down
Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
-
- 10+ Years
- Posts: 7388
- Joined: Sat Jul 22, 2006 5:02 pm
- Zip Code: 00000
- Location: in northern usa
154 htydraulic leak down
On my int154 cub my hydraulics leak down. My 3260 mower deck won't stay were i put it and my 3pt arms drop slowly too. It has the control valve and the selector valve. I haven't taken it apart yet so what do you think is the problem? Which valve?
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
-
- Team Cub Mentor
- Posts: 20393
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: 154 htydraulic leak down
Good question. Could be in the hydraulic control valve or it could be one of the seals in the cylinder(s).On my int154 cub my hydraulics leak down. My 3260 mower deck won't stay were i put it and my 3pt arms drop slowly too. Which valve?
If the cylinder has up and down pressure then the seal in the cylinder is leaking.
I have an excuse. CRS.
-
- 10+ Years
- Posts: 7388
- Joined: Sat Jul 22, 2006 5:02 pm
- Zip Code: 00000
- Location: in northern usa
Re: 154 htydraulic leak down
I looked at my cylinders and no leaks were spotted. While i mow my deck lowered from where i set it, at the sametime my 3pt arms lower till they hit the ground while i'm mowing.
I guess i need to go thru the whole system.
I found the correct size O Ring and they came in packages of 100 for the selector valve. Once i'm sure there the correct rings I may sell a few, I don't need 100. I wonder if they offer a rebuild kit for the control valve. I purchased a used control valve from Ralph a while back and i'd like to rebuild it before i install it. Just to besafe. I have very bad luck.
I guess i need to go thru the whole system.
I found the correct size O Ring and they came in packages of 100 for the selector valve. Once i'm sure there the correct rings I may sell a few, I don't need 100. I wonder if they offer a rebuild kit for the control valve. I purchased a used control valve from Ralph a while back and i'd like to rebuild it before i install it. Just to besafe. I have very bad luck.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
-
- Team Cub Mentor
- Posts: 20393
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: 154 htydraulic leak down
There is a seal or a set of seals around the pistons inside the cylinder. If one of these seals is leaking - hydraulic fluid will pass from the high pressure side to the low pressure side - when the system is in neutral - letting the arms or attachment lower. Hydraulic fluid does not have to be leaking from around the ram.
If you have two or more cylinders in a system - it only takes one of the piston seals leaking for all of the cylinders to "lower".
Changing the seal is not a big problem - keep everything clean. If you have more than one cylinder - finding the leaking cylinder is the problem.
If you have two or more cylinders in a system - it only takes one of the piston seals leaking for all of the cylinders to "lower".
Changing the seal is not a big problem - keep everything clean. If you have more than one cylinder - finding the leaking cylinder is the problem.
I have an excuse. CRS.
-
- 10+ Years
- Posts: 7388
- Joined: Sat Jul 22, 2006 5:02 pm
- Zip Code: 00000
- Location: in northern usa
Re: 154 hydraulic leak down
Stupid me, my memory is going ..... I won some int154 cub cylinders on ebay a while back now i just have to find them. I guess i may as well rebuild the whole hydraulic system so i'm sure its ok.
I'm going to try to lay the int154 cub up soon to work on it.
I'm going to try to lay the int154 cub up soon to work on it.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
-
- 10+ Years
- Posts: 140
- Joined: Mon Apr 21, 2008 8:02 pm
Re: 154 hydraulic leak down
BigBill wrote:Stupid me, my memory is going ..... I won some int154 cub cylinders on ebay a while back now i just have to find them. I guess i may as well rebuild the whole hydraulic system so i'm sure its ok.
I'm going to try to lay the int154 cub up soon to work on it.
sounds like my problem in reverse. I took apart the cylinder but a cessna cylinder is one way and gravity return. there is no rod seal the whol rod is the packing the fluid displaces all the mass of the rod. pretty cool I guess
-
- Team Cub Mentor
- Posts: 20393
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: 154 hydraulic leak down
Got to be seals some place to prevent hydraulic fluid from either passing the piston or on the single action cylinders using hydraulic fluid pressure to displace the piston rod - a series of Chevron seals are used to prevent hydraulic fluid from by passing the piston rod - leaking out the end of the cylinder.I took apart the cylinder but a cessna cylinder is one way and gravity return. there is no rod seal the whole rod is the packing the fluid displaces all the mass of the rod. pretty cool I guess
I have an excuse. CRS.
-
- 10+ Years
- Posts: 7388
- Joined: Sat Jul 22, 2006 5:02 pm
- Zip Code: 00000
- Location: in northern usa
Re: 154 hydraulic leak down
Garland Terry wrote:BigBill wrote:Stupid me, my memory is going ..... I won some int154 cub cylinders on ebay a while back now i just have to find them. I guess i may as well rebuild the whole hydraulic system so i'm sure its ok.
I'm going to try to lay the int154 cub up soon to work on it.
sounds like my problem in reverse. I took apart the cylinder but a cessna cylinder is one way and gravity return. there is no rod seal the whol rod is the packing the fluid displaces all the mass of the rod. pretty cool I guess
Thats how the hydraulic elevator cylinders are designed too there is no seal on the rod. The cylinder body fills up with oil and the rod goes up.
No matter where i set the selector valve it still drains down. If i raise up the 3pt to the max then change the selector valve to the center rocker shaft to use the mower deck the 3pt drops slowly. And so does the mower deck too.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
-
- 10+ Years
- Posts: 140
- Joined: Mon Apr 21, 2008 8:02 pm
Re: 154 hydraulic leak down
Eugene wrote:Got to be seals some place to prevent hydraulic fluid from either passing the piston or on the single action cylinders using hydraulic fluid pressure to displace the piston rod - a series of Chevron seals are used to prevent hydraulic fluid from by passing the piston rod - leaking out the end of the cylinder.I took apart the cylinder but a cessna cylinder is one way and gravity return. there is no rod seal the whole rod is the packing the fluid displaces all the mass of the rod. pretty cool I guess
Nope it don't have to. A cessna cylinder has an o ring and a dirt seal on the inside of to bore. and nothing on the rod but the keeper ring.
-
- Team Cub Mentor
- Posts: 20393
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: 154 hydraulic leak down
Got to be seals some place to prevent hydraulic fluid from either passing the piston or piston rod.
I have an excuse. CRS.
-
- 10+ Years
- Posts: 140
- Joined: Mon Apr 21, 2008 8:02 pm
Re: 154 htydraulic leak down
Sorry but there are no seals in a cessna cylinder. period none nine nyet uh uh no way!! I have taken them apart to many times.
-
- Team Cub Mentor
- Posts: 20393
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: 154 hydraulic leak down
Got to be seals some place.
What is the purpose of the o ring if it's not a seal?Nope it don't have to. A cessna cylinder has an o ring and a dirt seal on the inside of the bore. and nothing on the rod but the keeper ring.
I have an excuse. CRS.
-
- 10+ Years
- Posts: 7388
- Joined: Sat Jul 22, 2006 5:02 pm
- Zip Code: 00000
- Location: in northern usa
Re: 154 htydraulic leak down
I'm prepping my 3260 mower deck but before it goes on i need to repair my hydraulic leak down first. I also purchased extra used rocker shaft/3pt cylinders too from ebay.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
Return to “Lo-Boy Series - 154, 184, 185”
Who is online
Users browsing this forum: No registered users and 1 guest