What should a lineman do when they need to screw in an anchor using a kelly bar?

When using a kelly bar to screw in an anchor, adjusting the pins to the middle position after the initial screwing can provide optimal effectiveness. This adjustment can enhance the leverage and torque of the kelly bar, allowing the lineman to have better control over the anchoring process. It maximizes efficiency, ensuring that the anchor is securely fastened while allowing the user to make precise adjustments and maintain stability during the process.

In contrast, using the outer position could lead to compromised control and potential difficulty in dealing with the anchor, while keeping the pins locked in at the inner position might limit leverage and make it harder to properly install the anchor. Starting with the anchor bar fully extended may not be appropriate as it may result in excessive strain or instability, particularly if the kelly bar needs to be adjusted throughout the process. Proper positioning and adjustments of the pins are crucial for safe and effective anchoring operations.