How often must all separators undergo a Filter Effectiveness Test (FET)?

How often must all separators undergo a Filter Effectiveness Test (FET)?

• A. Every 30 days
• B. Every 60 days
• C. Every 90 days
• D. Every 15 days

Answer: (A)

Separators must be checked regularly because they must continuously remove water and particulates from fuel to keep the engine protected. The Filter Effectiveness Test verifies that the separator is still meeting its specified performance, catching any decline in removal efficiency due to media saturation, seal wear, or bypass. Doing this every 30 days keeps potential problems from slipping through and helps prevent fuel-related damage or engine performance issues. If the test were done less often, such as every 60 or 90 days, degradation could go undetected and compromise the fuel system. Testing more often, like every 15 days, would add unnecessary maintenance without providing meaningful additional protection since normal wear is well captured by the monthly schedule.

Separators must be checked regularly because they must continuously remove water and particulates from fuel to keep the engine protected. The Filter Effectiveness Test verifies that the separator is still meeting its specified performance, catching any decline in removal efficiency due to media saturation, seal wear, or bypass. Doing this every 30 days keeps potential problems from slipping through and helps prevent fuel-related damage or engine performance issues. If the test were done less often, such as every 60 or 90 days, degradation could go undetected and compromise the fuel system. Testing more often, like every 15 days, would add unnecessary maintenance without providing meaningful additional protection since normal wear is well captured by the monthly schedule.