1. Air Filter Maintenance

• Check the air filter every 8 working hours.
• Clean the inner and outer filter elements every 100 working hours or more often in dusty conditions.
• Replace the filter element if it is damaged, oily or cannot be cleaned.
• Do not use compressed air with excessively high pressure to avoid breaking the filter paper.

• Ensure the housing and seal are installed tightly to avoid unfiltered air entering.

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2. Fuel Filter Maintenance

• Drain water from the sediment bowl daily before starting the machine.
• Replace the fuel filter element every 250–300 working hours.
• Use genuine filters to ensure filtering accuracy and flow.
• After replacement, bleed the air from the fuel system to ensure smooth start.

3. Oil Filter Maintenance

• Replace the oil filter together with engine oil at each oil change.
• Normally replace every 250 working hours; shorten interval in severe working conditions.
• Pre-fill new filter with clean engine oil before installation.

• Tighten properly to avoid leakage or filter damage.

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4. Hydraulic Filter Maintenance

• Inspect suction filter, return filter and pilot filter regularly.
• Replace hydraulic filter elements according to the maintenance schedule.
• Check for clogging indicator; replace immediately if triggered.
• Keep the surrounding area clean when replacing to avoid dirt entering the system.

5. General Maintenance Rules

• Always use genuine or high-quality filter elements.
• Follow the operation and maintenance manual of the road roller.
• Shorten replacement intervals when working in dusty, muddy or severe environments.
• Record maintenance hours and replacement history for better management.
• Regular filter maintenance improves fuel efficiency, reduces wear and avoids major failures.