When operating a multi-shank ripper in very dense, uneven rock, what operator technique is generally recommended to maximize penetration and minimize strain on the machine?

Question: When operating a multi-shank ripper in very dense, uneven rock, what operator technique is generally recommended to maximize penetration and minimize strain on the machine?

Answer options:

• Engage all shanks to their maximum depth simultaneously. ✅ Use a single shank at maximum penetration, then add more as material loosens.
• Rip downhill exclusively to leverage gravity.
• Keep the ripper slightly above the ground to avoid stalling.

Correct answer: Use a single shank at maximum penetration, then add more as material loosens.

Explanation: When encountering very dense or uneven rock, starting with a single ripper shank at maximum penetration concentrates the machine's force, allowing it to break through the tough material. Once the initial penetration and loosening occur, additional shanks can be engaged to increase productivity, a key strategy taught in HEO training.