Thanks to the help of this forum, I've successfully restored my 61 Super Major and I've been using it for work on my wood lot, and lately, for removing snow at my workplace parking lot in Atlantic Canada this winter. Everything is working perfectly with 30 hours on the tach so far.
Last night while using the FEL to plow snow, the hydraulics suddenly came to a hault, well, almost. It was working perfectly for two hours, then everything started moving extremely slowly.
I am running the loader from the tractors stock hydraulic pump via the stock external services valve. Everything is functioning properly, it's just extremely slow all of a sudden. The flow control valve is responding as it should, however on slow they hydraulics move so slow it is almost unnoticeable. On fast, it takes about 45 seconds to lift the loader arms.
The 3pt hitch arms with blower attached are behaving exactly the same. I am not expierencing any issues with the hydraulics bleeding down, they will stay in place for hours with the tractor parked, with zero movement.
The pump is making pressure when measured at the external services port and it sounds normal, however it is down about 500psi to 1800, when I last checked, it made 23-2400psi easily. I drained the oil and inspected the pick up screen. There is a minor amount of debris but it is not even close to clogged.
I am thinking the hydraulic pump got damaged or maybe sheared the woodruff key.
Does anyone have any other suggestions before I remove the top cover to investigate?
For what it's worth, I am runnning universal tractor fluid designed for systems that share hydraulics and final drive lubricant that is an approx 30wt viscosity in the gearbox and final drive. I have seen multiple other recommendations for oils to use in these tractors.
Thanks.
Last night while using the FEL to plow snow, the hydraulics suddenly came to a hault, well, almost. It was working perfectly for two hours, then everything started moving extremely slowly.
I am running the loader from the tractors stock hydraulic pump via the stock external services valve. Everything is functioning properly, it's just extremely slow all of a sudden. The flow control valve is responding as it should, however on slow they hydraulics move so slow it is almost unnoticeable. On fast, it takes about 45 seconds to lift the loader arms.
The 3pt hitch arms with blower attached are behaving exactly the same. I am not expierencing any issues with the hydraulics bleeding down, they will stay in place for hours with the tractor parked, with zero movement.
The pump is making pressure when measured at the external services port and it sounds normal, however it is down about 500psi to 1800, when I last checked, it made 23-2400psi easily. I drained the oil and inspected the pick up screen. There is a minor amount of debris but it is not even close to clogged.
I am thinking the hydraulic pump got damaged or maybe sheared the woodruff key.
Does anyone have any other suggestions before I remove the top cover to investigate?
For what it's worth, I am runnning universal tractor fluid designed for systems that share hydraulics and final drive lubricant that is an approx 30wt viscosity in the gearbox and final drive. I have seen multiple other recommendations for oils to use in these tractors.
Thanks.