Do you know how to maintain mechanical filters?

The filter element plays the role of filtering impurities in the oil or gas lines to prevent them from intruding into the system and causing malfunctions; various filter elements should be replaced regularly in accordance with the requirements of the (Operation and Maintenance Manual); when replacing the filter element, check whether there is metal attached to the old If metal particles are found on the filter element, diagnose it promptly and take improvement measures; use a pure filter element that meets the machine's regulations. The filtering ability of fake and inferior filter elements is poor, and the surface and material quality of the filter layer do not meet the requirements, which will seriously affect the normal use of the machine.

Contents of regular maintenance

• The fuel filter element and additional fuel filter element should be replaced after the new engine has been in operation for 250 hours; check the engine valve clearance.

• Daily maintenance; check, clean or replace the air filter; clean the inside of the cooling system; check and tighten the track plate bolts; check and adjust the track back tension; check the air intake heater; replace bucket teeth; adjust bucket clearance; before inspection Check the window cleaning fluid level; check and adjust the air conditioner; clean the floor inside the cab; replace the breaker filter element (optional accessory). When cleaning the inside of the cooling system, wait until the engine is fully cooled, then slowly loosen the water injection port cap to release the pressure inside the water tank before draining the water; do not clean the engine while the engine is running, as the high-speed rotating fan will cause danger; when cleaning or replacing the cooling system When cooling, the machine should be parked on a level ground; the coolant and anti-corrosion device should be replaced according to Table 3. The ratio of antifreeze to water is as required in Table 4.

• Inspection items before starting the engine. Check the coolant level (add water); check the engine oil level and add engine oil; check the fuel level (add fuel); check the hydraulic oil level (add hydraulic oil); check whether the air filter is clogged; check the wires; Check whether the horn is normal; check the lubrication of the bucket; check the water and sediment in the oil-water separator.

• Every 100 maintenance items. Boom cylinder head pin; boom foot pin; boom cylinder rod end; stick cylinder head pin; boom and stick connecting pin; stick cylinder rod end; bucket cylinder head pin ; Half-rod connecting rod connecting pin; bucket rod and bucket cylinder rod end; bucket cylinder head pin; bucket rod connecting rod connecting pin; check the oil level in the slewing mechanism box (add engine oil); remove it from the fuel tank Drain water and sediment.

• Maintenance items every 250H. Check the oil level in the final drive box (add gear oil); check the battery electrolyte; replace the oil in the engine oil pan, replace the engine filter element; lubricate the slewing bearing (2 places); check the tension of the fan belt, and check The tension of the air conditioning compressor belt and make adjustments.

• Maintenance items every 500h. At the same time, perform maintenance items every 100 and 250H; replace the fuel filter element; check the height of the rotating pinion grease (add grease); check and clean the radiator fins, oil cooler fins and air conditioner fins; replace the hydraulic oil Filter element; replace the oil in the final drive box (only at 500h for the first time, and once every 1000h in the future); clean the air filter element inside and outside the air conditioner system; replace the hydraulic oil vent filter element.

• Maintenance items every 1000h. At the same time, perform maintenance items every 100, 250 and 500 hours; replace the oil in the slewing mechanism box; check the oil level in the shock absorber housing (return oil); check all fasteners of the turbocharger; check the turbocharger rotor clearance; check and replace the tension of the generator belt; replace the anti-corrosion filter element; replace the oil in the final drive box.