Was it just your tractor doing or was others having same problem? If not whats different on theirs maybe more weight on high side.
Mine was by far the smallest tractor. The next one was an Allis B that had weight hung on it just about every way imaginable. He was pulling a single 16" trailer plow.
This past weekend I had a conversation with one of the guys that was plowing with a large Deere farm tractor. He said he was slipping on the straw too but after it cleared the tire would grab and he'd get moving again.
Lower your tire pressure about 4 psi on the high side tire.
That would be the cheapest/easiest fix. Currently have 10psi all around.
What weight do you have?
My Case 444 and my previous 442 both ran same size tire as your speedex. 8-16 r1 and only had fluid in the tires. They hold 10 gallons each which equates to heavy! I never ran other weights except for the front weights to keep my steering. I have never really had a traction problem whether pulling a 10 or a 12. How well the plow is pulling has a lot to do with it also. Setup correctly, should pull fairly easily to the tractor. My tires probably had at least 1" deep bars also. I would think as long as they don't pack with dirt, they should be fine.
I have a 40lb. weight inside each wheel. I weighed at the pull this weekend and with me on the tractor it was 1198 lbs. When working with it I hang another weight on the front that weighs about 40lbs.
It's a 12" plow and I'm not sure I had it dialed in. I was working with the adjustments and it seemed to be getting better until I ran into a different problem. I tried plowing in 2nd. gear and stalled it on a restart after clearing trash.
After the stall it acted fuel starved. It had no power and would die if I throttled it up. I limped it onto the trailer and called it a day. Once it cooled down it was and has been just fine.
I'm thinking I got it pretty hot plowing at lower RPM and a higher gear, then idling while I cleared the plow I got some vapor lock. The carburetor on that Vanguard sits between the cylinders and the fuel pump sits on top of the rear head. It's possible the fuel pump isn't quite up to snuff too.
I'm figuring on your 444 and 442 you had about 85 lbs. in each tire. Figure 770 lbs. tractor (Case 444 per tractordata) + 170 fluid + 250 fat driver = 1190 lbs. Pretty much where I was with the Speedex. The Speedex ends up weighted to the high side because the bull gear is all the way against the left wheel, so that should work in my favor.
Sounds like weight probably isn't my problem. Next time out I think I'll drop the pressure in the high side tire and move the plow an inch to the right. I set the plow up with the tractor on blocks and got the tail of the share in line with the rear wheel but things may flex enough under load that I might be taking just a little too much bite.
Edited by MiCarl, June 07, 2017 - 07:01 AM.