Changed Hydraulic Hose. Now only Reverse No Forward.

[Axl2011]

Tractor is a 1970's John Deere 300B.

So a hydraulic line underneath the tractor had a pinhole and was spraying fluid out. I replaced the line and bought hydraulic fluid. Replaced the line and filled up fluid. After repairing that I started up the tractor and the backhoe was working fine. When I went to move forward it feels like it goes in gear then the tires move slightly but then will not move but backing up works good. What could have happened???

 

[Zebrafive]

I doubt the hose replacement has anything to do with the problem. I suspect the reverser linkage is not totally engaging forward.

 

[Industrial Toys]

I'm thinking possible air trapped somewhere. I had that on my loader with a hydrostat and I realize it's probably totally different. Trouble cleared itself in the course of trying to take pressure readings.

 

[RickB]

How much oil did you lose and how long did you run it when it was low on oil?

 

[Axl2011]

I dont think because when I put it in forward the tired move slightly but goes nowhere like no power

I doubt the hose replacement has anything to do with the problem. I suspect the reverser linkage is not totally engaging forward.

 

[Axl2011]

How would I bleed the air? I thought they self bleed through cylinders?

I'm thinking possible air trapped somewhere. I had that on my loader with a hydrostat and I realize it's probably totally different. Trouble cleared itself in the course of trying to take pressure readings.

 

[Axl2011]

I was only on for maybe a minute when I realized the line was spraying and shut it right off.

How much oil did you lose and how long did you run it when it was low on oil?

 

[Industrial Toys]

I don't know how complex hydraulic systems work. I just got lucky.

 

[Axl2011]

I dont know either but you must have been correct! I had my dad come over to try and help me figure it out and when i went to show him it went forward. Now that is fixed but my radiator is cracked. Got to love how these things go. Haha

I don't know how complex hydraulic systems work. I just got lucky.

 

[Zebrafive]

always something, that's my way of life