Which level do you do for excavator maintenance?

In order to better use the excavator to prevent various failures, more attention should be paid to the use and maintenance of the excavator during daily use. The excavator generally performs the first-level maintenance, secondary maintenance, three-level maintenance and overhaul four-level maintenance warranty system.

Routine maintenance

Check the excavator spare parts lubricating oil, coolant, battery liquid level is normal, add if necessary; check for oil leakage, water leakage, leakage; check the fastening of the main bolts in all parts, tighten in time when loose; check the tightness of the V-belt, Use the thumb to press down (about 6kgf) the middle of the belt, the amount of sag 5-6mm, adjust or replace as appropriate; check the integrity of the instrument, work light, signal light and switch; check or adjust the tension of the track, the sag requirement Between 25-40mm; whether the working performance of each operating rod is good; check the dust indicator, clean or replace the air filter element if necessary; check if the bucket teeth are loose or defective; check the bucket teeth for serious wear, as appropriate Replace or repair; add lubrication to each lubrication point of the working device; discharge water and sediment in the oil-water separator; check electrical wiring, open circuit, short circuit, looseness, etc.

Primary maintenance routine maintenance

Drain the water and dirt in the fuel tank; replace the engine oil and filter element; check the wear and damage of the track roller, drag chain and guide wheel, repair as appropriate; clean the deposit of the fuel prefilter; Fill the rotary roller with grease; check the tension of the air conditioner compressor belt and adjust if necessary; perform a comprehensive cleaning work to remove dust and dirt.

Secondary maintenance

Replace the fuel filter element: check the grease level at the rotary part, add grease; clean and inspect the heat sink, oil cooler heat sink; check the pin and bushing wear, repair or replace as appropriate; check track tension Fill the device, adjust the oil cylinder, etc.; replace the hydraulic excavator spare parts oil tank ventilation filter; replace the hydraulic oil filter element.

Three-level maintenance performs secondary maintenance

Replace the lubricating oil in the swing mechanism box; replace the hydraulic oil and filter element of the hydraulic system; check the wear of the mechanism gears, and clean and refuel; check the installation and fastening conditions, deformation, damage and noise of each part; check electrical components, switches, lines Whether there is aging; replace the lubricating oil in the final gearbox; replace the lubricating oil of the roller, drag chain and guide wheel; clean or replace the air filter element; check or adjust the valve clearance (according to the engine manual); Tighten the cylinder head bolts (according to the engine instructions); check the clearance of the turbocharger rotor and clean the carbon deposit; replace the anti-corrosion filter; check the shock absorber and fill the oil; check the maintenance starter, engine and so on.

Special care

Parking maintenance, walking maintenance, seasonal maintenance and pre-transfer maintenance. Parking maintenance refers to the maintenance of parking and storage machinery, with emphasis on cleaning and anti-corrosion. Maintenance during the running-in period means that the new machinery or the overhauled machinery is tightened and adjusted after the specified time (or km) of the specified load shedding operation. Cleaning and lubrication as the key maintenance, oil filter must be replaced; seasonal maintenance generally combines a normal second guarantee in spring and autumn; pre-transfer maintenance refers to the rapid development of mechanical energy into new construction after the project is used up. maintenance. https://jnjmzm.wixsite.com/sdjygcjx