Many pieces of equipment require preheating in low winter temperatures, such as common trucks and loaders.
Winter temperatures are low, often below zero degrees Celsius. For the internal combustion engines of loaders, the increased viscosity of the engine oil during startup at low temperatures leads to insufficient lubrication between gears and other parts, increasing wear. Running the engine at high speed at this time will exacerbate wear and can even cause cylinder scoring or other problems. Therefore, after starting the engine, it should idle for a period of time until the coolant temperature rises before increasing the speed, similar to warming up a car in winter.
Preheating not only benefits the engine but also affects the hydraulic system. Low winter temperatures increase hydraulic oil viscosity, affecting the operation of the robotic arm. Forcing high load operation at this time can damage the hydraulic system and easily lead to accidents. Furthermore, since hydraulic components rely on hydraulic oil for lubrication, insufficient oil supply and lubrication will significantly shorten the lifespan of the pump and motor. Therefore, after starting the engine, preheat for a few minutes, then slowly run the robotic arm a few times without increasing the load to lubricate the parts before gradually increasing the workload. Preheating in winter also allows for more complete combustion of diesel fuel in the loader, increasing engine life and reducing environmental pollution.
Given these numerous benefits, it is crucial to follow the preheating and other start-up procedures precisely during operation to ensure safe production and extend the loader's lifespan.
