Frequently Asked Questions
What category is my 3 point hitch?
There are four different hitch sizes, called categories. The higher category hitches have sturdier lift arms and larger connector pins. There is some flexibility in the tractor hp at which one category hitch ends and the next begins.
| Category | Tractor HP | Top Link Pin Diameter | Lift Arm Pin Diameter |
|---|---|---|---|
| 0 | Up to 20 | 5/8 in | 5/8 in |
| 1 | 20 to 45-55 | 3/4 in | 7/8 in |
| 2 | 45-55 to 90-95 | 1 in | 1⅛ in |
| 3 | 90-95 and up | 1¼ in | 1 7/16 in |
Do I need an over-running clutch?
In Grey Market tractors an overunning clutch is typically used on rotary mowers and other equipment with a high inertial load, particularly when used in conjunction with a tractor without a live Power-take-off (PTO). Without a live PTO, a high inertial load can cause the tractor to continue to move forward even when the foot clutch is depressed, creating an unsafe condition. By disconnecting the load from the PTO under these conditions, the overrunning clutch improves safety.
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