What is a driver required to do when the loading of the braking system’s air tanks takes longer than a reasonable time?

1. Correct answer: Drive to a garage to repair the malfunction.
2. Reduce the engine’s RPM, to make the work of the compressor more efficient.
3. Check the system’s fuel filter and, if required, clean it.
4. Wait until the tanks are filled up, and ignore the problem.

WhyIf the brake air tanks take longer than usual to fill, wait until they are full, then drive slowly and carefully to a garage to fix the fault.