Subtopic: Hitch systems and hitching of tillage implements
Question Statement:
In three-point hitch geometry of an agricultural tractor, which of the following statements are CORRECT?
Options:
(A) In the vertical plane, the virtual hitch point is located at the intersection of the centerlines of the upper link and lower links
(B) In the horizontal plane, the virtual hitch point is at the intersection of the two lower links
(C) Raising the virtual hitch point transfers dynamic load from the rear wheels to the front wheels
(D) Position control hydraulic mode maintains a constant implement height relative to the tractor chassis
Answer Key:
A, B, D
Step-by-Step Solution & Explanation
- A is correct: The virtual hitch point in the side elevation is the convergence of top link and bottom links.
- B is correct: In top view, the convergence of the two lower links defines the virtual hitch point in horizontal plane.
- C is incorrect: Raising the virtual hitch point increases dynamic load transfer onto the rear wheels, not front wheels.
- D is correct: Position control locks the lift rockshaft angle to the control quadrant lever position.