Plow drifting and not locking

[Coadster32 793]

I was plowing the wet heavy slush,snow last night in the cold rain.

The plow, which is mounted by tach-a-matic from the rear on a charger 12 is giving me issues. While under a heavy load the plow blade drifts from one angle to the next all on it's own. When I try to diagnose it in the garage, everything seems great. The lock pin is fully engaged, so I don't know why it is drifting. I have plowed with this tractor numerous times this year, and this just happened last night. I tried tipping the plow forward, and then leaving it straight, and no good results. I have some handmade levers for the plow, but they aren't putting any pressure on the setup. If pics are needed, I can send them later this evening. :whistle:

[WheelHorse_of_course 99]

I have seen two phenomena like this.

1) All too often one side of the hitch comes unhitched. From your description that does not sound like the problem but I thought I would mention it anyway.

If this happen set the angle to straight, drop the plow and back up 5 feet. Now lift the plow. It should be all aligned for you and you can close the hitch.

I have been told the newer hitches have springs to prevent this. What I have done is put a bungee on the hitch tab and run it behind and over the axle casing and up to the tool box. Problem solved.

2) I have seen many times where ice and snow prevents the pivot pin from seating fully into the hole.

I have found that looking at the triangular pivot piece at the bottom of the arm allows me to see if it is seating - if I squeeze the lever and the triangle barely moves I know there is a problem. Some times I can free it up by squeezing and releasing multiple times. At other times I have to spray WD-40 all over the pin area.

I hope this helps

:thumbs:

[Teddy da Bear 11]

I have seen on the old plows that the pin locator holes start to get

"oblong" after years of ramming the plow into snow/dirt.

The only time that my blade switched it's angle was if the pin was

not actually locked in the hole I thought it was.