Super C Rockshaft issue

Legacy52

New User
I just got done rebuilding the hydraulic control box due to the hydraulics constantly jumping down and up. Found a bent control valve which had one of the actuators stuck as well. Installed a used one and everything moves freely. When I was installing the rockshaft the pins that go through the connecting rod have no space between them and are hitting one another.

I looked back at my pictures i took before i took it apart and noticed that the problem must have been there before because whoever had it apart last slid the pin to the left and only put one cotter pin in the connecting rod pin instead of 2 to allow some space. I'm thinking this may have been the reason why the control valve on the left hand side was bent.

There is a gap between the bearing and the Left hand arm. I have no idea as to why there isn't enough space between the two arms. This really has me stumped.
 
The arm isn't bent is it? Very common problem. I had a bent one and the first replacement one I found was also bent.
 

It doesn't seem to be bent. when I had it bolted up everything seemed to move without any binding. for some reason i am having trouble attaching my picture
 

cvphoto80628.jpg
 
I just looked at mine. Bolt on the other side and see if there is a lot of clearance (wear) between the pivots. If so I would make a shim and put between the two parts? [/img:aad159ba56][/url]
 
Oh, I thought you meant the two arms that are on the same side are hitting each other. I will look at my tractor.
 
We pulled it apart this afternoon, had to use the press to get the tapered ends off. we put a shim between the two arms and it was too thick and caused the two side arms to rub and were afraid that the arm wasn't seated all the way on the taper. Going to get two smaller shims tonight to see if we can put one between the the 2 side arms and the second between the two parts that hold the pins.
 
We pulled it apart this afternoon, had to use the press to get the tapered ends off. we put a shim between the two arms and it was too thick and caused the two side arms to rub and were afraid that the arm wasn't seated all the way on the taper. Going to get two smaller shims tonight to see if we can put one between the the 2 side arms and the second between the two parts that hold the pins.
 
(quoted from post at 11:53:26 03/08/21) We pulled it apart this afternoon, had to use the press to get the tapered ends off. we put a shim between the two arms and it was too thick and caused the two side arms to rub and were afraid that the arm wasn't seated all the way on the taper. Going to get two smaller shims tonight to see if we can put one between the the 2 side arms and the second between the two parts that hold the pins.

Got everything squared away on the rocker shaft and installed the touch control box on the tractor today. Now after I rebuilt the box, I can't build any pressure above 30 PSI. I checked the engine oil level to make sure the hydraulic pump seal (that i recently installed) didn't fail and the oil level was good. I went through the tests again and the book says to check the pressure regulator piston and o-ring, and the safety valve spring, sleeve, and piston.

I think the problem is the safety valve. When I disassembled the safety valve the piston itself was missing and the tip of it was floating around inside of the sleeve. There are 2 styles of safety valves, mine has a spring, a steel sleeve and a piston ( item #'s 18,19,20 of the hydraulic box diagram ) when I reassembled it I put the piston inside of the spring with the tip face down in the sleeve. In looking at the diagram again it looks like the piston is installed first with the tip facing up, then the sleeve, then the spring.

What really confuses me is that the piston itself was missing before and I didn't have a pressure issue at all, now I do. I removed the hyd. box head while on the tractor (I have the battery box removed and have i a temp. gas tank mounted)

Can anyone verify the way the piston sits?
 
Got everything squared away on the rocker shaft and installed the touch control box on the tractor today. Now after I rebuilt the box, I can't build any pressure above 30 PSI. I checked the engine oil level to make sure the hydraulic pump seal (that i recently installed) didn't fail and the oil level was good. I went through the tests again and the book says to check the pressure regulator piston and o-ring, and the safety valve spring, sleeve, and piston.
I think the problem is the safety valve. When I disassembled the safety valve the piston itself was missing and the tip of it was floating around inside of the sleeve. There are 2 styles of safety valves, mine has a spring, a steel sleeve and a piston ( item #'s 18,19,20 of the hydraulic box diagram ) when I reassembled it I put the piston inside of the spring with the tip face down in the sleeve. In looking at the diagram again it looks like the piston is installed first with the tip facing up, then the sleeve, then the spring.

What really confuses me is that the piston itself was missing before and I didn't have a pressure issue at all, now I do. I removed the hyd. box head while on the tractor (I have the battery box removed and have i a temp. gas tank mounted)

Can anyone verify the way the piston sits?

I figured it out. the piston sits in with the tip facing up, then the sleeve and spring. I was very lucky, I removed the head while it was still on the tractor, and was able to to install the piston in the sleeve using grease and was able to put it back together.

The hydraulics work fine, however, the pressure stays at an almost constant 205 psi. Pressure does go up to 220 psi while moving but when they are not moving it stays at 205. Is this normal?
 

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