tallyho8
Elite Member
- Joined
- Aug 1, 2004
- Messages
- 4,999
- Tractor
- Kubota L4400, Kubota ZD326
I have had nothing but trouble with my 4610SU since I got it last month. The lift had quit working and I dismantled it and found the control valve sticking and fixed it. Then I bushogged about 3 acres and it really ran great and did a very good job. I wondered why the previous owner had got just a 6' mower for it because this one could easily handle an 8' or larger mower.
I moved it to the next field to cut and pulled up the handle to start the pto and it made a little clank and stopped turning. This is an independent pto where when you engage the lever it sends hydraulic pressure to the pto clutch to engage it and pressure to the pto brake to release it. When you disengage the lever it relieves the pressure from the clutch and allows the brake to stop the pto.
I don't have any gages to check the hydraulic pressure as the manual instructions state to do and I suspected a stuck pto control valve so I again removed the lift cover and inspected the valve which seems to be working fine and I replaced the cover.
I need to get a gage and adapters to check the pressure as my manual states but before I go any farther but I have one question first. I can turn my pto shaft easily by hand with the engine off as it is supposed to do and with the engine running the pto brake is supposed to be on. With the engine running I can still turn the pto shaft with my hand but it is difficult to turn. Should a person be able to turn this shaft by hand while the pto brake is on, even if it is real hard to turn? Or does this signal that my pressure regulator valve may be bad?
I am hoping that it is not a broken pto clutch because the tractor would have to be split to repair it and I could not do this procedure by myself especially with no shop to work in and it would be very expensive to get it fixed by our only New Holland dealer.
I am sure the pump works fine because it easily lifts my 6' bushhog and I just put a new filter and new oil in it.
I hope someone has some suggestions for me.
I moved it to the next field to cut and pulled up the handle to start the pto and it made a little clank and stopped turning. This is an independent pto where when you engage the lever it sends hydraulic pressure to the pto clutch to engage it and pressure to the pto brake to release it. When you disengage the lever it relieves the pressure from the clutch and allows the brake to stop the pto.
I don't have any gages to check the hydraulic pressure as the manual instructions state to do and I suspected a stuck pto control valve so I again removed the lift cover and inspected the valve which seems to be working fine and I replaced the cover.
I need to get a gage and adapters to check the pressure as my manual states but before I go any farther but I have one question first. I can turn my pto shaft easily by hand with the engine off as it is supposed to do and with the engine running the pto brake is supposed to be on. With the engine running I can still turn the pto shaft with my hand but it is difficult to turn. Should a person be able to turn this shaft by hand while the pto brake is on, even if it is real hard to turn? Or does this signal that my pressure regulator valve may be bad?
I am hoping that it is not a broken pto clutch because the tractor would have to be split to repair it and I could not do this procedure by myself especially with no shop to work in and it would be very expensive to get it fixed by our only New Holland dealer.
I am sure the pump works fine because it easily lifts my 6' bushhog and I just put a new filter and new oil in it.
I hope someone has some suggestions for me.