(1) Maintenance items every 500h. Carry out maintenance items every 100 and 250h at the same time; Replace the fuel filter element; Check the grease height of the rotary pinion; Check and clean radiator fins, oil cooler fins and cooler fins; Replace the hydraulic oil filter element; Replace the oil in the final drive box (only at 500h for the first time, and at 1000h thereafter); Clean the air filter elements inside and outside the air conditioner system; Replace the hydraulic oil vent filter element.
(2) Maintenance items every 1000h. At the same time, carry out maintenance items every 100, 250 and 500h; Replace the oil in the slewing mechanism box; Check the oil level of the shock absorber housing (return oil); Check all fasteners of turbocharger; Check the clearance of turbocharger rotor; Check and replace the tension of the generator belt; Replace the anti-corrosion filter element; Change the oil in the final drive case.
(3) Maintenance items every 2000h. First complete the maintenance items every 100, 250, 500 and 1000h; Clean the filter screen of hydraulic oil tank; Clean and check the turbocharger; Check the generator and starting motor; Check the engine valve clearance (and adjust it); Check the shock absorber.
(4) Maintenance for more than 4000H. Increase the inspection of water pump every 4000H; Add hydraulic oil replacement items every 5000h.
(5) Long term storage. When the machine is stored for a long time, the working device shall be placed on the ground to prevent the hydraulic cylinder piston) rod from rusting; Clean and dry the whole machine and store it in a dry indoor environment; If the machine can only be stored outdoors due to limited conditions, the machine shall be parked on the cement ground with good drainage; Before storage, fill the fuel tank, lubricate all parts, replace the hydraulic oil and engine oil, apply a thin layer of grease on the exposed metal surface of the piston rod of the hydraulic cylinder, remove the negative terminal of the battery, or remove the battery for separate storage; Add an appropriate proportion of antifreeze into the cooling water according to the minimum ambient temperature; Start the engine once a month and operate the control machine to lubricate all moving parts and charge the battery at the same time; Turn on the air conditioner for refrigeration operation for 5-10min.
