Which of the following is a key step in the disassembly of oxyfuel equipment?

Removing the hoses from the torch is indeed an essential step in the disassembly of oxyfuel equipment. This action is important because it ensures that gas flow is completely halted before any further disassembly takes place, minimizing the risk of accidents or leaks due to pressurized gas. By disconnecting the hoses, you effectively isolate the torch from both the oxygen and fuel gas supplies, making it safer to handle the torch itself without the risk of unintended ignition or gas leakage.

In contrast, checking for gas leaks is a crucial procedure but is typically performed prior to disassembly to ensure safety while the system is operational. Closing the cylinder valves is also a critical safety measure but is generally performed as an initial step in the shutdown process rather than during disassembly. Lighting the torch before disassembly is highly unsafe as it introduces a flame into a disassembly process, creating a significant risk of fire or explosion. Thus, removing the hoses is the key step that prioritizes safety while preparing for the careful disassembly of oxyfuel equipment.