Farmall 300 rear hydraulic line

CharlesTx

Member
Location
Central Texas
Like many have noted I have a leaky rear hydraulic line on my 300. It has been blazed several times, new holes appear over time. I read where some have replaced with hydraulic hose. How do you attach the hose to the valve. Is it threaded or do you cut the line and keep the block that attaches to the valve. Slip hose over valve and clamp or blaze connections to the block?
 
Is the line all rust pitted and leaks in new places all the time, or does it eventually leak again where brazed?

I've seen a lot of hydraulic lines from systems running much higher pressure get repaired by brazing (that amazingly to me) hold up, so it seems odd that your relatively low pressure (by today's standards) line keeps leaking.

If you do, in fact, want to run hoses, what I would do is use black iron pipe couplings and saw them in half, and braze or weld the half-couplings to the plate that bolts to the valve.

I'm not sure how the factory lines are attached, if they are brazed to the plates, you would pretty much have to braze the half-couplings in place because of the brass already there, if they are welded, the half-couplings could either be welded or brazed.
 
What I did was cut the pipe off 2 or 3 inches from the plate, then took a 1/2 inch hydraulic coupling and drilled out one end just enough so it slid over the pipe and brazed in on.
 
Cornerpost is correct , the line has been repaired a half dozen times, new holes appear over time, so my conclusion is the line is thin from having set in field dirt. This tractor spent most of its time outdoors after being worked on black dirt. I am just looking for a longer lasting solution. Thanks for the replies.
 
the vertical part of the line will be in better condition. Cut the where convenient and get a ferrule type fitting to slip on the line and run a hose to rear of tractor.
 
On my 450 where I wanted things to remain original I bought a replacement line from Bates Corp. Definitely not cheap but it matches the original bends and quality and should last another 50+ years easily.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top