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Excavator Routine Maintenance Specifications

June 12, 2026
के बारे में नवीनतम कंपनी की खबर Excavator Routine Maintenance Specifications

Excavator Routine Maintenance Specifications

 

Systematic periodic maintenance of excavators aims to reduce equipment failure rates, extend the overall service life, cut downtime losses, boost operational efficiency and lower comprehensive construction costs. More than 70% of equipment failures stem from inadequate control of oil media, water vapor and intake air. Standardized management of fuel, lubricants, cooling water and intake air cleanliness can eliminate approximately 70% of potential equipment faults.
 

1. Fuel Control Specifications

 

2) Diesel must be free of sediment, water and solid impurities, as contaminants will accelerate abnormal wear of precision mating parts in high-pressure fuel pumps. Inferior diesel contains excessive paraffin and sulfur, which easily causes carbon deposition and corrosion to engine blocks and fuel injection systems, damaging the power assembly.
4) After fuel depletion emptying pipelines or fuel filter replacement, fuel pipelines must be vented thoroughly to avoid air resistance disrupting fuel supply.
 

2. Control of Special Oils for Engine, Hydraulics and Transmission

 

Core media include engine oil, hydraulic fluid and transmission gear oil. Strict no-mixing rules apply:
 

1) Oils of different grades and viscosity ratings shall never be blended. Special oils for different equipment categories adopt differentiated additive formulas for anti-wear, anti-oxidation, detergent and dispersion functions; mixing will destabilize oil performance.

2) Maintain full cleanliness of oils at all times, preventing intrusion of moisture, dust, metal particles, silt and other pollutants into oil chambers.

3) Match viscosity specifications to ambient operating temperature: high-viscosity engine oil for high-temperature conditions, low-viscosity engine oil for low-temperature environments. Gear oil adopts high-viscosity formulation to accommodate heavy-load transmission, while hydraulic fluid uses relatively low viscosity to reduce fluid flow resistance, ensuring responsive hydraulic performance and lower energy consumption.

 

3. Storage and Greasing Management of Lubricating Grease

 

Lubricating grease serves to reduce abrasion and noise on friction pairs and protect metal contact surfaces. Requirements are as follows:
 

1) Store grease in sealed conditions to avoid contamination by dust, grit, water and foreign debris.

2) G2-L1 lithium-based grease is recommended for heavy-duty excavation operations due to superior extreme-pressure anti-wear properties.

3) Apply grease under sustained pressure to fully expel old grease until new grease overflows. Thoroughly clean residual grease and silt around grease fittings to stop hard particulate ingress into friction clearances.

 

4. Maintenance Standards for Filter Elements

 

Air, fuel, hydraulic and oil filter elements intercept solid contaminants to prevent scoring, seizing and abrasive wear of precision hydraulic and power components:
 

1) Replace all filter elements periodically in strict accordance with cycles specified in the OEM Operation & Maintenance Manual.

2) ​Inspect removed old filters for adhered metal debris. If metallic particles are detected, conduct immediate diagnostic inspection of corresponding systems to identify wear risks and implement corrective actions.

3) Only genuine OEM filter elements shall be installed. Counterfeit filters fail to meet standards in filtration precision, filter media strength and effective filtration area. Poor filtration will rapidly wear critical precision components including pumps, valves, cylinders and crankshafts, severely impairing overall machine operation.

 

5. Periodic Replacement & Maintenance of Wear-Resistant Sealing Components

 

Oil seals, O-rings, dust-proof skeleton seals and other sealing assemblies are high-frequency wear parts for excavators, scheduled for regular replacement. Timely renewal of aged, deformed and worn seals stabilizes operational efficiency, drastically reduces leakage failures and effectively prolongs the overall service life of equipment.
 

Guangzhou Youpin specializes in manufacturing oil seals and sealing components, delivering reliable sealing supporting solutions.

 

6. Preservation Procedures for Long-Term Equipment Storage

 

Implement a full set of anti-rust, anti-aging and performance retention protocols when equipment is stored idle long-term:
 

1) Retract working implements fully to rest on the ground, completely housing hydraulic cylinder piston rods inside barrels to eliminate exposed rod corrosion risks.

2) Thoroughly wash and air-dry the whole machine; indoor dry warehouse storage is preferred. If outdoor storage is unavoidable, park on well-drained hardened cement ground.

3) Pre-storage preparation: Fill fuel tank to full capacity; apply sufficient grease to all lubrication points; replace hydraulic fluid and engine oil with fresh batches; coat exposed metallic piston rod surfaces with a thin layer of grease for rust protection; disconnect the negative battery terminal, or remove the battery entirely for separate temperature-controlled storage. Add antifreeze to the cooling system at a proper ratio matched to the minimum ambient temperature.

4) Monthly upkeep: Start the engine and run it at idle, actuate full-stroke movements to lubricate all moving friction pairs and recharge the battery simultaneously. Run the air conditioner in cooling mode for 5–10 minutes to maintain air conditioning pipelines and compressor integrity.