As extreme heat grips many regions across the country, with ground temperatures approaching 50°C, excavators—our "iron warriors"—also face severe challenges. Proper maintenance is key to preventing equipment "heatstroke." Follow this expert guide to keep your machine running smoothly!

I. Hydraulic System: Managing the 'Lifeblood' in High Temperatures

Hydraulic Fluid Selection & Replacement

Summer-grade fluids: Switch to HV46 or higher-viscosity hydraulic oil to ensure stable oil film performance in heat.

Temperature monitoring: Install digital sensors; maintain oil temps below 85°C during continuous operation. If exceeding 90°C, idle for 5 minutes before shutdown.

Shorten filter replacement cycles by 30% to prevent oxidation and valve blockages.

Cooling System Maintenance

Daily cleaning: Use compressed air to backflush radiator fins, preventing dust buildup (a 30% blockage can reduce efficiency by 50%).

Coolant checks: Ensure freezing point ≤ -25°C and boiling point ≥ 110°C to avoid overheating.

II. Power System: Keeping the Engine 'Cool'

Air Intake Optimization

Replace air filters every 150 hours (vs. standard 250 hours) to reduce intake resistance in hot, dusty conditions.

Turbocharger inspection: Check for oil leaks due to heat-induced seal degradation.

Fuel System Protection

Install a fuel pre-filter to prevent diesel vaporization and power loss.

Avoid refueling at midday to minimize tank overflow from thermal expansion.

III. Lubrication & Electrical Systems: Details Matter

High-Temperature Lubrication

Use high-temp grease (NLGI Grade 2) for swing bearings and travel reducers, increasing lubrication frequency by 20%.

Wipe hydraulic cylinder rods daily to prevent seal damage from grit.

Electrical System Care

Wrap wire connectors with insulating tape to prevent oxidation.

Maintain battery electrolyte levels 10-15mm above plates to counter evaporation.

IV. Operating Practices: Smart Work = Efficiency + Longevity

✅ Avoid peak heat (11:00–15:00); pause every 2 hours for a 15-minute cooldown.

✅ Clean AC filters weekly (add dust screens for better cabin cooling).

✅ Open engine covers post-shutdown to dissipate heat and prevent rubber part aging.

V. Emergency Protocols

Hydraulic oil overheating alarm: Shut down immediately; check radiator blockage—never add cold water directly!

Engine overheating: Turn off AC, idle for 5 minutes before shutdown to avoid cylinder head warping.

Heat is a silent killer for heavy machinery—proper care can extend equipment life by 30%! Master these tips, and your excavator will stay "cool" all summer long!"

This version maintains technical accuracy while adapting idioms (e.g., "iron warriors" for 钢铁战士) for clarity in English. Let me know if you'd like any refinements!