A flare-type tubing connector is used in the hydraulic hatch-cover system and has developed a slight leak. To stop the leak you should __________.

Correct Answer: Option A — shut down the power unit and use two wrenches to avoid damaging the tubing when tightening

Always isolate and depressurize hydraulic systems before performing maintenance. Using two wrenches—one to hold the fitting body and one to turn the nut—prevents the application of torque to the tubing itself, which avoids twisting, work-hardening, or cracking the flare during the tightening process.