What is the situation when the loader has normal pressure but the vehicle does not move?
2 Answers
If the loader has normal pressure but the vehicle does not move, it is likely due to aging of the travel pump or issues with the transmission oil. Professional inspection and repair should be conducted as soon as possible to resolve the fault. Below is a relevant introduction to loaders: Definition: A loader is a type of earth-moving machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, and mines. It is mainly used for shoveling and loading loose materials like soil, sand, gravel, lime, and coal, and can also perform light digging operations on ores and hard soil. Function: By equipping different auxiliary working devices, it can also perform tasks such as bulldozing, lifting, and handling other materials like timber.
With over two decades of operating construction machinery, I've encountered numerous instances where loaders wouldn't move despite normal pressure gauge readings. This often stems from transmission issues—clutch slippage or critically low oil levels can disrupt power transfer, even when hydraulic pressure appears adequate, indicating potential internal wear. Brake system seizures are another frequent culprit, whether due to an engaged parking brake or rusted wheel cylinders, especially prone after rainfall when rust can lock wheels. Drive component failures like broken rear axle gears or loose chains also immobilize equipment. I recall one job where torque converter seal leakage showed full pressure yet rendered movement impossible, forcing shutdown for repairs. Sandy soil operations demand extra vigilance against foreign object intrusion into components. Safety always comes first—when facing such malfunctions, immediately shut down for inspection rather than forcing operation and exacerbating damage. Regular lubrication of brake linkages during maintenance prevents many headaches, avoiding costly repairs down the road.
