Articles
Air brakes on trucks and heavy vehiclesBrakes · 8 minA review of the pneumatic brake system's structure the spring brake's fail-safe principle and what to watch for when checking brakes on heavy vehicles.Hydraulics on heavy vehiclesHydraulics · 7 minThe basic principle behind hydraulics, the central components of a hydraulic system and why cleanliness and safety are crucial when you work with systems under high pressure.Service and preventive maintenance of heavy vehiclesService and operations · 7 minWhat preventive maintenance is, why uptime and operational reliability are critical in transport, and which areas a service inspection of a heavy vehicle typically covers.The diesel engine in heavy vehiclesMotor · 8 minA review of the heavy diesel engine's operation fuel injection at high pressure turbocharging and the exhaust aftertreatment necessary to meet environmental requirements.Inspection, testing and documentation on heavy vehicles.Legal requirements and documentation · 7 minWhy heavy vehicles are subject to strict requirements for inspection, weight and equipment, what a legally required inspection includes, and why good documentation is both a legal requirement and a professional quality certificate.Systematic troubleshooting on heavy vehiclesTroubleshooting · 7 minA method for systematic troubleshooting on heavy vehicles where mechanics electricity compressed air hydraulics and electronics interact and where the symptom must be linked to the right system before measurements are taken.Post-treatment of exhaust — EGR, DPF, and SCR/AdBlueMotor and environment · 9 minHow EGR, diesel particle filter and SCR catalyst with AdBlue work together to lower nitrogen oxides and particles in a heavy diesel engine, what regeneration and urea dosing are, and why tampering with the systems is both illegal and harmful.Tachograph and driving and rest timeLegal requirements on inspection, weight and tachograph plus correct documentation. · 8 minWhat a tachograph (speed recorder) registers, why rules for driving and rest time exist, what inspection and calibration of the tachograph entail, and why it is a subject area with special requirements for care and authorization.Safety when working on heavy vehiclesWork environment and safety · 8 minWhy work on trucks and heavy vehicles contains special hazards — heavy parts, large springs, compressed air and high-pressure hydraulics — and how correct lifting, support, pressure relief and load handling prevent serious accidents.The history of heavy transport — from steam wagon to AdBlueHistory · 10 minThe truck mechanic tends the vehicles that keep society moving. Follow the story from the earliest days of heavy vehicles, through the breakthrough of the diesel engine and compressed air brake and standardization of spare parts, to today's electronically controlled trucks with exhaust treatment, tachograph and strict legal requirements.24V electrical system and CAN-bus in trucksElectricity and electronics. · 7 minAn introduction to the 24V electrical system in heavy vehicles and the CAN-bus/J1939 protocol that links engine, gearbox, brakes and instrumentation together — and what it means for troubleshooting.Connection gearbox and automated transmission (AMT)Transmission · 7 minAbout the classical manual gearbox with range and splitter, how an automated manual transmission (AMT) works, and why the retarder relieves the service brakes on long downhill runs.Suspension, steering and wheels on heavy vehiclesChassis and suspension · 7 minAbout the construction of air suspension, the function of the steering system and the control points of the wheels — and why wear here often manifests as uneven tire wear or imprecise steering, before it develops further.ABS, EBS and electronic safety systems on heavy vehiclesSafety systems · 7 minOn ABS, EBS and the EU-required automatic emergency braking system (AEBS) on heavy vehicles, how they work together, and what is important to remember when troubleshooting and calibration.Tools and diagnostic equipment at the truck workshopTools · 6 minA review of the tools that characterize a truck workshop — powerful hand tools lifting equipment with associated safety requirements and modern diagnostic equipment for error codes and calibration.ADR and transport of hazardous goodsLegal requirements and safety · 7 minAn introduction to the ADR regulations for transporting dangerous goods, the role of the Danish Emergency Management Agency, the exemption quantity, and what it means for servicing and repair of ADR-approved vehicles.New weight and dimension rules from 2026 – and 58 tons from 2027Rules and legislation · 7 minA review of the Danish Transport Authority's new regulation on vehicle weight length and height taking effect in 2026 and the subsequent increase in permitted total weight for the heaviest truck combinations from 2027.Electrification of heavy transport.Future and technology · 7 minAbout battery-electric trucks from Volvo, Mercedes and Scania, the Danish charging infrastructure for heavy transport and what electrification means for the truck mechanic trade in the future.Career paths and journeyman exam as truck mechanicCareer · 6 minAbout the structure of the training with basic course, apprenticeship and main course, the possibilities for EUV and EUX, the journeyman's examination and the career paths that open up after the journeyman's certificate.