How to maintain the loader every 600 hours of operation?1. Replace the front and rear axle gear oil (replace every 1000 hours thereafter);
2. Clean the oil suction filter of the diesel tank;
3. Remove contaminants on the surface of the water tank and radiator;
4. Change engine oil, engine oil filter and diesel oil filter;
5. Replace the gearbox oil and oil filter;
6. Check the engine valve clearance.