During clamshell operation, how is the bucket configured prior to making contact with the log?

• A. Level open and 1 in up
• B. Level closed and 1 in up
• C. Level open and 2 in up
• D. Level open and 1 in down

Answer: (A)

The key idea is getting the clamshell ready to receive the log with a stable, unobstructed grip. Positioning the bucket level and open gives you a clean, centered entry for the log, so the jaws can envelop it evenly rather than snagging on the edge or the ground. Adding a slight lift—about one inch—keeps the bucket clear of the surface and aligns the jaws for a smooth encounter as you begin to close. If you tried to approach with the bucket closed or with the bucket too low, you’d risk missing the log, pinching it, or digging into debris or the ground. A bigger lift (like two inches) can reduce control and make the capture less precise, so the one-inch up, level-open setup is the right balance for a controlled contact.