1) After the new machine works at 250H, the fuel filter and additional fuel filter should be replaced; check the clearance of the engine valve.
(2) Daily maintenance; check, clean or replace the air filter element; clean the inside of the cooling system; check and tighten the track shoe bolts; check and adjust the track back tension; check the intake air heater; replace the bucket teeth; adjust the bucket clearance; Check the liquid level of the front window cleaning fluid; check and adjust the air conditioner; clean the floor in the cab; replace the breaker filter. When cleaning the inside of the cooling system, after the engine is sufficiently cooled, slowly twist the water inlet cover to release the internal pressure of the water tank before releasing the water; do not perform cleaning work when the engine is working, the high-speed rotating fan will cause danger; when cleaning or replacing the antifreeze cooling When the liquid is filled, the machine should be parked on a level ground.
(3) Check items before starting the engine. Check the height of the liquid level of the coolant; check the engine oil level and add oil; check the fuel oil level; check the hydraulic oil level; check whether the air filter is blocked; check the wire; check whether the horn is normal; check the lubrication of the bucket; check Water and sediment in the oil-water separator.
(4) Every 100 maintenance items. Komatsu excavator repairs the electrical parts and main components of the engine, hydraulic device, height control engine and hydraulic device, all developed and produced by Komatsu. Inspect the oil level in the slewing mechanism box; drain water and sediment from the fuel tank.
(5) Maintenance items every 250H. Check the oil level in the final drive box; check the battery electrolyte; replace the oil in the engine oil pan and replace the engine filter; lubricate the slewing bearing; check the tension of the fan belt, and check the tension of the air conditioning compressor belt And make adjustments.
