When the oil temperature alarm blares after 3+ hours of continuous summer orchard work, compact bulldozer hydraulic system overheating not only damages equipment but causes costly downtime! Quickly identify and resolve the root causes:
Core Causes of High Oil Temperature
❶ Poor Hydraulic Cooling: Radiator clogged with dust/debris (common in orchard environments)
❷ Engine Overload: Excessive load handling in small worksites (e.g., >2hr continuous dozing with HW16D)
❸ Fluid Degradation: Heat accelerates oil oxidation (blackened/low viscosity)
Emergency Troubleshooting in 3 Steps
Check Cooling: Clean radiator fins with compressed air (act if dust >3mm thick)
Test Oil: Drip hydraulic oil on white paper — replace if dark diffusion ring appears
Monitor Load: Engine RPM drop >15%? Reduce load by 20% & check pump pressure
Long-Term Prevention Techniques
▶ Sunshade Installation: Add removable canopy (lowers cabin temp 12°C + delays oil temp rise)
▶ Oil Upgrade: Switch to ISO VG68 high-viscosity oil in summer (40% better viscosity retention at high temp, compatible with HW17DE models)
All Hengwang compact bulldozers feature intelligent temperature warning systems. HW series models offer optional dual-fan hydraulic cooling modules for reliable 40°C operations. Get Your《Summer Equipment Maintenance Guide》