That shim is lying in one of my tool box drawers.....likely where your shim is headed also along with the bolt, etc.
Before you lift the heavy actual hitch and sit it on the front bracket with the rod supporting it, pull back and lock in place the 4 spring loaded pins which hold the hitch to the tractor (2) and hold the plow to the hitch (2). It makes putting on both much easier.............and less likely to pinch fingers.
When you route the hydraulic hoses for the quik tach hitch, its very important they be protected with a sleeve or covering when they mount through the support brackets which might not yet be on your tractors frame. They are the gold colored round rings with a mounting stem on them. Ideally, two of these brackets works well..........Where the hoses slide through the rings, its best to have material between the hose and the metal ring. I will see if I can find a photo of my lines for you and how I did it.
If the hoses are tight, the bracket will wear a hole in the hose and give you a pin hole leak spraying you with hydro fluid. Take your time and keep the hoses from being twisted and run them through the support brackets on the right side or the tractor frame one hose at a time........and its easier to hook and unhook and also not have any issues.
One last critical instruction, when you sit the plow onto the hitch by lowering the plow's pins into the V on top of the hitch, make sure the trip lock pins on the back side of the plow are in the released position. These allow the plow to pivot when you hit something and the trip springs protect you and the tractor and plow. Some plows have one trip pin, some have two. The pins on my plow are shaped like a "U" and are shown in this screen shot shown as number 6. Make sure they can NOT lock into place when the plow bangs back and forth. Also make it a habit to check these from time to time. You will be glad you did.
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