Red Seal Heavy Duty Equipment Technician Practice Exam

What maintenance frequency is typically recommended for checking air filters in heavy equipment?

1. Every 1,000 hours

2. Every 500 hours

3. Every 100 hours

4. Once every two months

The correct answer is: Every 100 hours

In heavy equipment maintenance, checking air filters every 100 hours is generally advised to ensure optimal engine performance and longevity. Air filters are crucial components that prevent dirt, debris, and contaminants from entering the engine, which can lead to reduced efficiency, increased wear, and potential damage. Frequent checks allow technicians to assess the condition of the filters and replace them as needed, thus maintaining proper airflow and protecting the engine. This preventive maintenance helps avoid greater issues, such as decreased fuel efficiency or increased emissions, that can arise from clogged or dirty filters. While other suggested frequencies may also be applicable depending on the operating conditions and specific equipment, the 100-hour interval is a widely accepted guideline to ensure that the air intake system remains effective and the equipment operates efficiently.