Here's why:
* 190C Model: The 190C is a very early John Deere garden tractor model that predates the widespread use of Sleeve Hitches. It was designed to work with the older "quick-change" implements. These implements had a different attachment system than Sleeve Hitches.
* Sleeve Hitch Compatibility: Sleeve Hitches are a later development and were commonly used on John Deere garden tractors from the late 1960s onwards (like the 110, 140, etc.).
What to do instead:
1. Use original equipment: You can continue to use the original quick-change implements designed for your 190C. These are still readily available.
2. Find a suitable adapter: While a direct Sleeve Hitch attachment isn't possible, you might be able to find an adapter or modification kit that allows you to use some Sleeve Hitch-compatible implements with your tractor. You'll need to do some research and possibly consult with specialists in vintage John Deere restoration.
Important Note: Any modifications to your tractor should be carefully considered and done by someone experienced in working with vintage equipment.
Remember, the best way to ensure compatibility and safety is to use the implements that were originally designed for your 190C.