Recently, many machine owners have begun performing their own repairs. This is a positive trend—it shows awareness that technical skills are valuable assets.
However, repair techniques cannot be mastered in just a few days. They require both effort and aptitude: some people are quick learners, while others remain confused even after years of experience.

The work involves trade secrets, skill, and spare parts selection, but above all, it depends on attention to detail. Although replacing parts may look simple, the way it is done can make a huge difference. Some people know the importance of working in a clean environment, while others dismantle hydraulic pumps directly in the dirt!

I once encountered a case in a state-owned enterprise with a Nissan RD6 diesel engine. Due to the dusty and dirty environment during assembly, the engine seized after just three hours of trial operation. All parts had to be replaced, and the repair repeated.