The purpose of regular maintenance for excavators is to reduce machine failures, prolong machine life, shorten machine downtime, improve work efficiency, and reduce operating costs. As long as fuel, lubricating oil, water and air are well managed, failures can be reduced by 70%. In fact, around 70% of failures are due to poor management.
1. Coolant type Cooling system internal cleaning and replacement cycle Anti-corrosion device replacement cycle AF-ACL antifreeze (super antifreeze) every 2 years or every 4000h every 1000h or when replacing the coolant AF-PTL antifreeze (long-term antifreeze ) every year or 2000h AF-PT antifreeze (winter type) every 6 months (add only in autumn)
2. Inspection items before starting the engine. Check the liquid level of the coolant (add water); check the engine oil level, add oil; check the fuel oil level (add fuel); check the hydraulic oil level (add hydraulic oil); check whether the air filter 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 head pin; boom foot pin; boom cylinder rod end; stick cylinder head pin; boom, stick connecting pin; stick cylinder rod end; bucket cylinder head pin ;Connecting pin of half-rod connecting rod; Rod end of bucket rod and bucket cylinder; Pin shaft of cylinder head of bucket cylinder; Connecting pin of arm connecting rod; Drain water and sediment.
4. Every 250H maintenance items. 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 ring (2 places); check the tension of the fan belt, and check Adjust the tension of the air conditioner compressor belt.
5. Maintenance items every 500 hours. Carry out every 100 and 250H maintenance items at the same time; replace the fuel filter; 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 every 1000h thereafter); clean the air filter element inside and outside the air conditioner system; replace the hydraulic oil vent filter element.
6. Maintenance items every 1000 hours. Carry out maintenance items every 100, 250 and 500 hours at the same time; replace the oil in the slewing mechanism box; check the oil level of the shock absorber housing (back to the engine oil); 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 box.
7. Maintenance items every 2000 hours. First complete the maintenance items every 100, 250, 500 and 1000h; clean the filter screen of the hydraulic oil tank; clean and check the turbocharger; check the generator and starter motor; check the engine valve clearance (and adjust); check the shock absorber.
8. Maintenance over 4000 hours. Increase the inspection of the water pump every 4000h; increase the replacement of hydraulic oil every 5000h.
Where to check the engine oil of Carter excavator
lever, high position, on the line.
The excavator is parked on a solid and stable ground.
After the engine is turned off, wait for a while to allow the splashed oil to fully flow back to the bottom of the oil pan (about 5 minutes).
Pull out the oil dipstick and check the position of the oil stain on the dipstick.
Generally, the oil dipstick has an upper line and a lower line.
It is suitable if the oil trace is between the two lines; if it exceeds the upper line, the running resistance of the engine will be increased, and the engine oil will be burned; if it is lower than the lower line or it cannot be seen at all, it means that there is too little oil, which may cause excessive wear and sintering.
To change the engine oil, you need to pay attention to the maintenance cycle. Engine oil and oil filter must be replaced at the same time.
How long does it take to check the oil of an excavator (How long does it take to check the oil of an excavator)
Park the excavator on a solid and stable ground and turn off the engine.
Drain the waste engine oil until no oil drips down.
Close the oil drain port, add engine oil to the appropriate amount from the oil filler port
How often should the excavator oil be changed?
The excavator oil needs to be replaced every 500 hours.
1. Excavator gear oil should be replaced every 2500 hours.
2. Excavator hydraulic oil should be replaced every 2500 to 3000 hours.
3. Excavator lubricating oil (butter) needs to be added basically every day.
4. The 500-hour engine needs routine maintenance and replacement of the third filter.
5. Diesel oil is 500 yuan, engine oil is 500 yuan, air filter is 2000 yuan, hydraulic oil is 2000 yuan, and the air conditioning filter element is replaced once a year.
6. After 500 hours, the engine needs to be routinely maintained for changing the engine oil and engine, diesel, oil and water filter elements.
7. The engine oil and filter are generally replaced every 250 hours, and the air filter is cleaned every 50 hours.