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The excavator water tank is not short of water, the dashboard alarms that the antifreeze is insufficient


1. Daily maintenance; check, clean or replace the air filter element; clean the inside of the cooling system; check and tighten the bolts of the track shoes; check and adjust the back tension of the track; check the intake heater; replace the bucket teeth; adjust the bucket clearance; check Front window washer fluid level; check and adjust the air conditioner; clean the floor in the cab; replace the crusher filter element (optional). When cleaning the inside of the cooling system, after the engine is fully cooled, slowly loosen the water filler cap to release the internal pressure of the water tank, and then water can be discharged; do not clean the engine while the engine is working, the high-speed rotating fan will cause danger; when cleaning or replacing the cooling The machine should be parked on a level surface when the coolant is used; 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.
2. Check items before starting the engine. Check the coolant level (add water); check the engine oil level, add oil; check the fuel level (add fuel); check the hydraulic oil level (add hydraulic oil); check if the air filter element is blocked; 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.
3. Every 100 maintenance items. Boom cylinder cylinder head pin; boom foot pin; boom cylinder cylinder rod end; stick cylinder cylinder head pin; boom, stick connecting pin; stick cylinder cylinder rod end; bucket cylinder cylinder head pin ;Half rod connecting rod connecting pin; stick, bucket cylinder cylinder rod end; bucket cylinder cylinder head pin; stick connecting rod connecting pin; check the oil level in the slewing mechanism box (add oil); from the fuel tank Drain water and sediment.
4. Maintenance items every 250H. Check the oil level in the final drive case (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 Adjust the tension of the air conditioner compressor belt.
5. Maintenance items every 500h. Carry out maintenance items every 100 and 250H at the same time; replace the fuel filter element; check the height of the rotary pinion grease (add grease); check and clean the 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 once at 1000h after that); clean the air filter element inside and outside the air conditioner system; replace the hydraulic oil vent filter element.
6. Maintenance items every 1000h. Carry out maintenance items every 100, 250 and 500h at the same time; replace the oil in the slewing gear box; check the oil level (return oil) of the shock absorber housing; check all the fasteners of the turbocharger; check the turbocharger rotor Check and replace the tension of the generator belt; replace the anti-corrosion filter element; replace the oil in the final drive case.
7. Maintenance items every 2000h. First complete the maintenance items every 100, 250, 500 and 1000h; clean the hydraulic oil tank filter; clean and check the turbocharger; check the generator and starter motor; check the engine valve clearance (and adjust); check the shock absorber.
Maintenance over 8.4000h. Increase the inspection of the water pump every 4000h; increase the replacement of hydraulic oil every 5000h.

9. Long-term storage. When the machine is stored for a long time, in order to prevent the piston rod of the hydraulic cylinder from rusting, the working device should be placed on the ground; the whole machine should be washed and dried and stored in a dry indoor environment; Park the machine on a well-drained cement floor; fill up the fuel tank before storage, lubricate all parts, replace the hydraulic oil and oil, apply a thin layer of butter to the exposed metal surface of the piston rod of the hydraulic cylinder, remove the negative terminal of the battery, or Remove the battery and store it separately; add an appropriate proportion of antifreeze to the cooling water according to the lowest ambient temperature; start the engine and operate the machine once a month to lubricate the moving parts and charge the battery at the same time; turn on the air conditioner and run for 5-10 minutes.