There's a weight box on the back. This problem was there last year, but not as bad. This year with weight in the box, it''s more pronounced.
If I turn the spout to the left on the snowblower, the 3pt weight box goes down. If I turn the spout right, the weight box goes up. If I turn the spout to the left all the way and feather the lever slowly to turn the spout right, the 3pt goes up first then the spout starts to swing, almost like a master/slave hydraulic condition.
Ok the obvious answer is "lift the 3pt and close the manual valve on the side of the SCV. Great idea. That's what the valve is for, but the 3pt still drops when the spout is turned left. Closing the valve doesn't help.
Now, If I lift the 3pt half way up and close the manual valve, the 3pt still goes down when turning the snowblower left. When I turn the snowblower right, the 3pt only goes up half way and stops where it was when I closed the manual valve.
First guess was the manual valve on the side of the SCV was bad. Nope. valve is good.
One of the next theories was the hydraulic cylinder for the 3pt or mower deck has a blow internal seal and is just pushing oil back and forth around the piston. I don't think the is the problem, but it is a suggestion.
Another theory is when I turn the spout left, the 3pt uses gravity and closes the cylinder. This creats something of a vacuum on the back side of the cylinder. When I turn right, oil closes the cylinder. When the cylinder piston reaches the hydraulic oil on the backside, the cylinder stops. So, with the manual valve closed to the cylinder, it's acting like a oneway hydraulic cylinder and power up only.
That little manual valve on the SCV is on the line it is supposed to be. There would be a lot adapting to make it fit on the other line
Anyone have a better guess what is going on here.
While I havent compared the two, a friend has a 435 with a 3pt with a weight bar and blade on the front. He does not have this problem.
Thanks
If I turn the spout to the left on the snowblower, the 3pt weight box goes down. If I turn the spout right, the weight box goes up. If I turn the spout to the left all the way and feather the lever slowly to turn the spout right, the 3pt goes up first then the spout starts to swing, almost like a master/slave hydraulic condition.
Ok the obvious answer is "lift the 3pt and close the manual valve on the side of the SCV. Great idea. That's what the valve is for, but the 3pt still drops when the spout is turned left. Closing the valve doesn't help.
Now, If I lift the 3pt half way up and close the manual valve, the 3pt still goes down when turning the snowblower left. When I turn the snowblower right, the 3pt only goes up half way and stops where it was when I closed the manual valve.
First guess was the manual valve on the side of the SCV was bad. Nope. valve is good.
One of the next theories was the hydraulic cylinder for the 3pt or mower deck has a blow internal seal and is just pushing oil back and forth around the piston. I don't think the is the problem, but it is a suggestion.
Another theory is when I turn the spout left, the 3pt uses gravity and closes the cylinder. This creats something of a vacuum on the back side of the cylinder. When I turn right, oil closes the cylinder. When the cylinder piston reaches the hydraulic oil on the backside, the cylinder stops. So, with the manual valve closed to the cylinder, it's acting like a oneway hydraulic cylinder and power up only.
That little manual valve on the SCV is on the line it is supposed to be. There would be a lot adapting to make it fit on the other line
Anyone have a better guess what is going on here.
While I havent compared the two, a friend has a 435 with a 3pt with a weight bar and blade on the front. He does not have this problem.
Thanks