Kernopelli
Veteran Member
- Joined
- Oct 16, 2006
- Messages
- 2,207
- Location
- Carterville, Illinois
- Tractor
- Mitsubishi MTE2000D, Dig It 258 Mini Ex, Deere Z930A ZTR
My good friend that I have quit loaning my tractor to has found a new sucker..........err, friend to borrow from.
As I was leaving work this morning, he stopped me and told me he had "screwed up his buddies small JD"... I've heard that one before. He doesn't know for sure what model it is but describes it a "large garden tractor" size machine...maybe like a 4100 or 4200 series I am guessing.
He said he was "pushing a good size a pile of branches" off a hill side using the front bucket to push with. When he backed away from the pile he realized the curl and dump functions suddenly would not work but the loader arms would raise and lower (with down pressure). When he cycles the bucket he can see the cylinder hoses expand and then the relief valve pops open but the cylinders will not move in/out. He ended up taking the bucket off thinking something was binding up or a limb was stuck somewhere and not allowing the bucket to pivot but found everything was clear and free. He took the pins free from the bucket cylinder ends and said when he pushes in on one cylinder rod, the other rod extends and vice versa, so the cylinder are apparently not bound. I asked him if he took any quick connects loose or otherwise messed with any of the hoses or joystick in any way and he said no.
Sounds to me that the cylinders are getting pressure since the cylinder hoses expand a little until the relief opens and the lift functions correctly so its not a pressure flow issue. My initial thought was that it was return issue ( return flow blocked, maybe through the joystick) but if the lift cylinders don't do this, could that be the problem?
Any opinions on what the problem may be and possible solutions?
As I was leaving work this morning, he stopped me and told me he had "screwed up his buddies small JD"... I've heard that one before. He doesn't know for sure what model it is but describes it a "large garden tractor" size machine...maybe like a 4100 or 4200 series I am guessing.
He said he was "pushing a good size a pile of branches" off a hill side using the front bucket to push with. When he backed away from the pile he realized the curl and dump functions suddenly would not work but the loader arms would raise and lower (with down pressure). When he cycles the bucket he can see the cylinder hoses expand and then the relief valve pops open but the cylinders will not move in/out. He ended up taking the bucket off thinking something was binding up or a limb was stuck somewhere and not allowing the bucket to pivot but found everything was clear and free. He took the pins free from the bucket cylinder ends and said when he pushes in on one cylinder rod, the other rod extends and vice versa, so the cylinder are apparently not bound. I asked him if he took any quick connects loose or otherwise messed with any of the hoses or joystick in any way and he said no.
Sounds to me that the cylinders are getting pressure since the cylinder hoses expand a little until the relief opens and the lift functions correctly so its not a pressure flow issue. My initial thought was that it was return issue ( return flow blocked, maybe through the joystick) but if the lift cylinders don't do this, could that be the problem?
Any opinions on what the problem may be and possible solutions?