Excavator Maintenance in High Temperature Environments
As "iron warriors," excavators face severe challenges in extreme heat. How can you maintain your equipment effectively to prevent heatstroke? Keep this professional guide handy!
I. Hydraulic System: Managing the "Blood" of Your System in High Temperatures
Hydraulic Oil Selection and Replacement
Summer Oil: We recommend switching to a higher viscosity grade to ensure oil film stability in high temperatures.
Oil Temperature Monitoring: Install a digital oil temperature sensor. During continuous operation, the oil temperature should be kept below 85°C. If it exceeds 90°C, the machine must be idled for 5 minutes to cool down.
Shorten the filter replacement cycle by 30% to prevent oil oxidation and clogging of the valve block.
Cooling System Deep Maintenance
Daily Cleaning: Use a high-pressure air gun to blow back the radiator fins to prevent dust accumulation (a clogging rate >30% will reduce cooling efficiency by 50%).
Coolant Testing: The freezing point must be ≤ -25°C and the boiling point ≥ 110°C to prevent "boiling" at high temperatures.
II. Powertrain: Keep the Engine Running Cool
Intake System Optimization
Air filter replacement interval shortened to 150 hours (normally 250 hours) to prevent increased intake resistance in high-temperature, high-dust environments.
Turbocharger Inspection: High temperatures can easily cause aging of the turbine shaft seal; regular inspections are required for oil leaks.
Fuel System Protection
Install a fuel prefilter to prevent diesel vaporization caused by high temperatures, which can reduce engine power.
Avoid refueling during the middle of the day to prevent thermal expansion from causing the fuel tank to overflow.
III. Lubrication and Electrical Systems: Details Determine Lifespan
Lubrication Adjustments for Key Areas
Use high-temperature grease for the slewing bearing and travel reducer, increasing lubrication frequency by 20%.
Clean the hydraulic cylinder rod end daily to prevent dust from entering the oil seal and causing strain.
Electrical System Aging Prevention
Use insulating tape to wrap wiring harness connectors to prevent oxidation and poor contact due to high temperatures.
The battery electrolyte level should be 10-15mm above the plate to prevent evaporation at high temperatures.
IV. Operating Habits: Scientific Construction = Efficiency + Energy Saving
✅ Avoid operating during high temperatures (11:00 AM - 3:00 PM), and allow the machine to cool for 15 minutes every two hours.
✅ Clean the air conditioning filter weekly to ensure efficient cab cooling (a dust screen is recommended).
✅ Open the hood when the machine is stopped to dissipate heat and prevent heat buildup that accelerates aging of rubber components.
V. Emergency Procedures
Hydraulic oil temperature alarm: Immediately stop the machine and check the radiator for blockage. Never add cold water directly!
Engine water temperature is too high: Turn off the air conditioning and operate at low speed for five minutes before shutting off to prevent cylinder head deformation.
High temperatures are an invisible killer for construction machinery. Scientific maintenance can extend the life of your equipment by 30%! Master these tips to keep your excavator cool this summer!
