Disassemble the engine and overhaul. Disassemble and send the various parts. That had to be repaired in various departments and then assembled into a new machine. Change the piston Change various parts
Disassemble the engine and lobby. Disassemble and send the parts that require repair to various departments. Then reassemble. Replacement of piston parts
Disassemble the engine and Overhall, sir, and then send the parts that need to be repaired to various departments, and then assemble them into a new machine, replace the pistons and spare parts.