How to check a used truck in 30 minutes

Buying a used tractor unit is always a bit of a risk. In photos it can look perfect, and the seller may insist that "the truck runs fine and has no problems," but it's better to check for yourself. If you have limited time for an inspection, it's important to know exactly where to look first. Below is a practical algorithm from the dealers at [tirkomis](/catalog) for quickly assessing a truck before buying it.

Start with the documents and visual condition

First and foremost, start with the documents: the VIN code and service history. It also helps to find out how the tractor unit was used — simply put, "what was it hauling?" and "where did it run?". Next, walk around the vehicle: the outer condition of the cab and frame, tire wear. Usually, even at this stage, a buyer can already spot future repairs that will be waiting for them.

Engine, pit inspection and computer diagnostics

The engine must be started "cold." The first seconds of engine operation show its real condition — whether it holds a steady idle, whether there are any unusual noises, "what does the exhaust look like?". On the pit, pay attention to leaks, especially oil leaks. And most importantly — computer diagnostics. It's impossible to properly assess the real condition of a tractor unit and its mileage without reading the fault codes through such a check. Most buyers don't fully follow this step, since there isn't always a suitable place and specialists nearby before the purchase.

Test drive and final assessment

A buyer isn't always able to check a tractor unit in action. The customer needs to feel how the gearbox, brakes, suspension and so on perform. After the test drive, we recommend inspecting the vehicle from underneath once more — sometimes problems only show up at this stage.

The main rule is simple: you should judge the equipment not by "words" and "photos," but by its real technical condition — as they say, you need to "put your hands on the machine." In half an hour you can understand whether you're looking at a working tractor unit or one that's potentially seen "more than one repair." We recommend turning to trusted dealers and yards that don't hide the condition of their equipment and let you inspect it however you wish. Choosing [tirkomis](/) gives you the chance to go through all these steps for a "safe purchase."