1. Bulldozer Engine System: Triple Overheating Protection

1. Coolant Deep Maintenance
   Replace with bulldozer-specific long-life antifreeze (freezing point ≤-35°C), maintain level at MAX mark. Clean radiator fins to remove blockages, boosting heat dissipation by 20%.

2. Fuel System Cooling Management
   Inspect bulldozer fuel pump for leaks to prevent vapor lock. Diesel must settle for 48+ hours before refueling to avoid high-temperature oil circuit failures.

2. Bulldozer Hydraulic System: High-Temp Oil Strategy

1. Oil Viscosity Adaptation
   Switch to 46# anti-wear hydraulic oil in summer. Stop bulldozer operation immediately if hydraulic oil temp exceeds 80°C to prevent oil carbonization.

2. Filter Frequent Replacement
   Shorten bulldozer return filter replacement cycle to 250h (vs. regular 350h) to eliminate impurity-caused component wear.

3. Bulldozer Undercarriage: Anti-Blowout Maintenance

1. Dynamic Tire Pressure Adjustment
   Reduce bulldozer tire pressure to 92%-95% of standard (e.g., 0.35MPa→0.32MPa) during midday heat. Remove stones from treads to prevent thermal expansion cracks.

2. Track Tension Regulation
   Maintain bulldozer track sag at 30-50mm. Over-tensioning accelerates high-temp wear on the undercarriage.

4. Bulldozer Electrical System: Anti-Aging Upkeep

1. Wiring Harness Insulation Check
   Inspect bulldozer engine compartment wiring; replace cracked sheaths and wrap with high-temp bellows to prevent short circuits.

2. Battery Overcharge Prevention
   Adjust bulldozer generator voltage to 28±0.5V to avoid electrolyte evaporation, extending battery life.

5. Bulldozer Lubrication System: High-Temp Grease Application

1. Grease Fitting Deep Cleaning
   Flush bulldozer grease fittings with diesel first, then inject high-temp lithium grease (drop point ≥260°C) until old grease expels for optimal lubrication.

2. Joint Bearing Focus Maintenance
   Relubricate bulldozer boom/blade joints daily before operation to prevent dry friction heating and component jamming.

6. Bulldozer Operation & Storage Guidelines

1. Work Period Optimization
   Avoid bulldozer operation during 11:00-15:00 peak heat. Adopt "work around the heat" shifts to reduce engine load.

2. Parking Environment Requirements
   Park bulldozer in shaded areas; cover radiator with dust screen to prevent debris accumulation and maintain cooling efficiency.

Summary: Summer bulldozer maintenance centers on "heat dissipation + oil care + anti-aging". Perform full-system temperature checks every 500h (normal: water temp ≤95°C, hydraulic oil ≤85°C) to cut high-temp failure risks by 60%.