The lubrication system lubricates, cools, and cleans the:

The __________ is a series of connected mechanical parts which take the power generated by the engine and applies it to the tractor’s drive wheels.

A defect in the braking system can interfere with a vehicle’s ability to:

This system is what connects the tractor and trailer.

When looking over the suspension system, you need to check for cracked, loose, or:

If your exhaust temperature is too high, what can get damaged?

When checking the coupling system, you need to:

The suspension system allows the axles to move up and down in response to ground changes without seriously affecting the load. __________ allows the stress of road shocks to be distributed evenly throughout the frame.

To keep vehicle systems in good operating condition:

As part of an oil change, the condition of the __________ should be assessed. This item can help prolong the life of the engine by removing contaminants as oil passes through it.