Avoiding Common Maintenance Mistakes in CNG School Bus Fleets
Avoiding common maintenance mistakes in CNG school bus fleets is essential for the safety of your technicians, drivers, and the general public. Failure to follow industry best practices and requirements leaves districts at risk for increased vehicle downtime, higher operational costs, and dangerous conditions for those in and around their buses. Fleet managers must implement proactive strategies to keep their CNG buses in peak condition.
Common CNG Maintenance Mistakes and How To Avoid Them
1. Neglecting Regular Fuel System Inspections
All natural gas vehicles (NGVs) operate under high pressure, making regular inspections critical. Failure to check for leaks, damaged seals, and continued integrity of valves and other components can lead to system failures. Fleet managers should implement routine inspections and adhere to National Fire Protection Association (NFPA) 52 standards for safety hazard prevention.
2. Improper Fueling Practices
Exceeding the recommended fill pressure of CNG cylinders can lead to both safety and performance issues. Technicians should:
- Follow manufacturer-recommended fueling procedures.
- Monitor cylinder pressure.
- Ensure safe handling of natural gas.
3. Ignoring Manufacturer-Recommended Maintenance Schedules
Skipping scheduled maintenance can lead to costly repairs and unexpected breakdowns. School bus fleets should:
- Follow OEM-recommended service intervals.
- Replace worn components, such as pressure relief devices and O-rings.
- Keep detailed maintenance logs.
4. Lack of Technician Training and Certification
CNG systems require specialized knowledge to service properly. Without adequate training, technicians may mishandle components and put themselves at unnecessary risk. Fleet managers should invest in industry-recognized training programs, such as those provided by AFVi.
Best Practices for Maintaining CNG School Buses
- Conduct comprehensive fuel system inspections every three (3) years or 36,000 miles, whichever comes first, and after any accident or fire.
- Train drivers on proper fueling procedures.
- Stay updated on state and federal regulations for CNG fleets.
How AFVi Supports CNG Fleet Maintenance
AFVi provides expert training programs and compliance resources to help school bus fleet managers optimize their CNG maintenance practices. Our programs ensure technicians and operators receive the knowledge needed to enhance safety, reduce costs, and maintain operational efficiency.
Prevent costly repairs and improve fleet reliability by implementing proper CNG maintenance strategies. Contact us to learn more about our training and support services.
