What should you check about the air tank drains on each converter dolly during inspection?

Pick an answer

1. Drains only need checking once a month regardless of use or the weather conditions no matter how often the dolly is used
2. Dollies do not have their own air tanks to drain
3. That they are functioning and not leaking, since each dolly's air tank can also collect moisture
4. Only the tractor's air tanks need draining

Correct!

Not quite. The correct answer is highlighted.