1. Worn Hitch Pins: Worn or damaged hitch pins can cause the 3-point hitch to slip. Inspect the pins for wear and replace them if necessary.
2. Improper Adjustment: The 3-point hitch should be properly adjusted to ensure that it is correctly aligned with the tractor and implement. Follow the manufacturer's guidelines for adjusting the hitch.
3. Excessive Load: If the 3-point hitch is overloaded, it can cause the hitch to slip. Make sure that the implement weight does not exceed the tractor's lift capacity.
4. Damaged Lift Cylinder: A damaged lift cylinder can cause the 3-point hitch to lose power and slip. Check the lift cylinder for any damage and replace it if necessary.
5. Hydraulic Fluid Level: Low hydraulic fluid level can cause the 3-point hitch to slip. Check the hydraulic fluid level and add more if necessary.
6. Internal Leakage: Internal leakage in the hydraulic system can cause the 3-point hitch to lose power and slip. Have the hydraulic system inspected by a qualified mechanic.
7. Worn or Damaged Control Valve: A worn or damaged control valve can cause the 3-point hitch to lose control and slip. Replace the control valve if necessary.