Your excavator’s radiator is its first line of defense against overheating. Neglecting it can lead to 40%+ higher engine repair costs. Follow these expert tips to maximize radiator life and performance.
Essential Maintenance Checklist
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Weekly Cleaning
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Flush debris (mud, leaves) from fins using low-pressure air/water (<30 psi). Never use metal tools!
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Degrease oil-coated cores with alkaline cleaner (avoid acid solutions).
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Monthly Inspection
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Coolant Level/Quality: Check for discoloration or oil contamination. Replace coolant annually.
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Hose Condition: Look for cracks, bulges, or soft spots. Replace if >6 years old.
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Mounting Bolts: Retighten loose bolts to prevent vibration damage.
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Quarterly Deep Care
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Pressure test system (15-18 psi) to identify micro-leaks.
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Test coolant antifreeze strength and pH (ideal: 8.5-10.5).
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5 Warning Signs You Need Replacement
⚠️ Chronic Overheating
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Engine temps exceed 220°F (104°C) despite proper coolant flow.
⚠️ Visible Core Damage
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15% of fins bent/crushed (reduces airflow efficiency by 30%).
⚠️ Persistent Leaks
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Seepage at tanks/core joints after sealant repair attempts.
⚠️ Internal Blockage
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Temperature differential >30°F (17°C) between radiator inlet/outlet pipes.
⚠️ Corrosion Damage
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White crust (electrolysis) or pinholes in tubes, especially in salt-air environments.
Pro Tip: For high-hour machines (>10,000 hrs), consider preemptive radiator replacement during major overhauls to avoid unplanned downtime.
Why Choose Dongxinnan Radiators?
Our OEM-compatible radiators undergo 3-stage pressure testing (up to 45 psi) and feature:
✓ Reinforced 0.4mm copper-brass cores for tropical conditions
✓ Robust epoxy-bonded tank seals eliminating seam leaks
✓ Customizable configurations for Volvo/CAT/Komatsu models
Need a performance diagnosis? Send your radiator photos to our team.