A loader operator is performing final grading for a sports field that requires a 1.5% slope for drainage. They use a motor grader with cross-slope control. If the operator notices that the blade is consistently cutting deeper on one side, indicating an incorrect slope, what is the most likely cause?

Question: A loader operator is performing final grading for a sports field that requires a 1.5% slope for drainage. They use a motor grader with cross-slope control. If the operator notices that the blade is consistently cutting deeper on one side, indicating an incorrect slope, what is the most likely cause?

Answer options:

• The engine speed is too high, causing the hydraulics to overwork. ✅ The cross-slope sensor is miscalibrated or obstructed.
• The tires on one side of the grader have insufficient air pressure.
• The operator is engaging the differential lock too frequently.

Correct answer: The cross-slope sensor is miscalibrated or obstructed.

Explanation: If the blade consistently cuts deeper on one side with cross-slope control engaged, it indicates that the system is not maintaining the desired slope. This often points to a miscalibrated or obstructed cross-slope sensor, which is responsible for detecting and adjusting the blade's angle relative to the ground. While tire pressure can affect leveling, a consistent error with an automated system typically points to sensor issues. Engine speed and differential lock use are less likely to cause a consistent slope error.