When should the FO strainer be cleaned and inspected?

When should the FO strainer be cleaned and inspected?

• A. When the system is not pressurized
• B. During full operation
• C. Weekly during maintenance
• D. Only after a shutdown

Answer: (A)

Servicing the fuel oil strainer must be done only when the fuel system is not pressurized. This safety condition avoids the risk of a high‑pressure fuel spray or leaks as you remove the cover and the screen. Depressurizing and isolating the line lets you drain any remaining fuel, inspect the screen for dirt, tears, or corrosion, and clean or replace it without hazards. After cleaning, you can reassemble, purge the line, and re‑pressurize with a check for leaks. Cleaning during operation is unsafe, and while maintenance schedules exist, the essential factor is being depressurized, not the clock.

Servicing the fuel oil strainer must be done only when the fuel system is not pressurized. This safety condition avoids the risk of a high‑pressure fuel spray or leaks as you remove the cover and the screen. Depressurizing and isolating the line lets you drain any remaining fuel, inspect the screen for dirt, tears, or corrosion, and clean or replace it without hazards. After cleaning, you can reassemble, purge the line, and re‑pressurize with a check for leaks. Cleaning during operation is unsafe, and while maintenance schedules exist, the essential factor is being depressurized, not the clock.