Keeping your SANY SY135C in peak operating condition starts with the right parts and a solid maintenance routine. Ensure your excavator stays in top shape with high-quality pilot filters, diesel filters, and ignition keys. The SANY SY135C is designed for heavy-duty excavation with its durable construction and advanced control systems, making it an ideal choice on tough job sites. Don’t forget to stay on top of your maintenance—secure the parts you need to keep your SANY SY135C running smoothly! Keep reading for a comprehensive maintenance guide for your machine.

Walk-Around Inspection

• Inspect undercarriage components including tracks, sprockets, rollers, and guards for wear or damage
• Check for leaks around hydraulic lines, cylinders, and engine components
• Ensure mirrors, windows, grab handles, and steps are clean and free of debris
• Look for loose hardware or any visible signs of damage on the machine body

Daily Maintenance

• Check fluid levels: engine oil, coolant, hydraulic fluid, and fuel
• Inspect and clean air filter dust evacuator
• Drain water from the primary fuel filter/water separator
• Check engine compartment for debris and clean if needed
• Inspect bucket, boom, and arm for damage or excessive wear

Every 50 Hours

• Lubricate all grease points, including swing bearing and boom pins
• Check engine oil and hydraulic fluid for contamination
• Clean radiator, oil cooler, and air conditioning condenser

Every 250 Hours

• Replace the engine oil and filter
• Inspect air conditioning compressor belt
• Clean hydraulic tank breather filter

Every 500 Hours

• Replace primary and secondary fuel filters
• Inspect final drive and swing drive oil levels and top off if needed
• Check hydraulic lines and hoses for wear or leakage

Every 1000 Hours

• Replace hydraulic tank return filter
• Inspect engine serpentine belt
• Clean hydraulic oil suction strainer

Every 2000 Hours

• Change hydraulic oil
• Replace DEF tank and pump filters
• Replace case drain and pilot line filters

As-Needed Maintenance

• Replace damaged mirrors, glass, or decals
• Replace bucket teeth or cutting edges as worn
• Lubricate exposed cylinder rods before long-term storage

Final Maintenance Recommendations

Regular maintenance keeps your SANY SY135C operating reliably on the jobsite. For a full range of SANY parts, explore our extensive EquipmentShare parts catalog. If you can’t find the part you need, reach out to our parts experts for a custom order.