The capacity of the plastic bucket fuel tank is too small, the heat dissipation area is insufficient, and the cooling device capacity is too small. The high temperature of the climate and working environment leads to an increase in oil temperature. Improper selection of oil viscosity, high viscosity, high viscosity resistance, low viscosity, and increased leakage. Both of these situations can lead to heating and temperature rise.
The pipes of the plastic bucket system are too thin, too long, and bent too much, resulting in significant local pressure loss and pressure loss along the way. The precision of the parts is insufficient, the assembly quality is poor, and the mechanical friction loss between relative movements is large. The clearance between mating parts is too small, or the clearance is too large after wear and tear, resulting in large internal and external leakage and significant volume loss, such as reduced volumetric efficiency and rapid pump temperature rise.
The plastic bucket is equipped with a quantitative pump oil supply system with an oil pump capacity selected based on the fast forward speed. During operation, most of the excess flow will overflow from the relief valve under high pressure and generate heat. When the unloading circuit in the system fails or is not set, the oil pump cannot unload when it stops working. All the flow of the pump overflows under high pressure, causing overflow loss and heat generation, resulting in temperature rise.
