Colorado CDL Practice Test

A single-axle tractor with landing gear designed for a tandem-axle configuration may encounter difficulties when crossing railroad tracks due to the different heights and load distributions associated with these two types of vehicles.

Tandem-axle tractors are built with a specific height and weight distribution that allows them to navigate railroad crossings effectively. When a single-axle tractor uses landing gear that is intended for a tandem-axle design, it may sit lower to the ground or be improperly aligned with the tracks, leading to potential scraping, hanging up, or even getting stuck on the rails.

Proper adjustment of landing gear is crucial. When this equipment is not suited for the vehicle's design, it can affect stability and clearance. Therefore, for safe and effective crossing of railroad tracks, compatible design and functionality between the vehicle and its landing gear are essential. This ensures that the vehicle can smoothly transition over the tracks without risk of damage or accidents.