Maintenance precautions for excavators entering hibernation period:

Maintenance precautions for excavators entering hibernation period:

For many users in different regions, January means entering the off-season for excavator work, and most equipment will gradually enter a 2-4 month "hibernation period". Although these devices will be idle during this period, they should also be properly stored and maintained so that they can be used again in the spring of next year to achieve their best performance.

Clean the soil on the surface of the excavator and check for loose fasteners;

Check if the antifreeze level and oil level are normal, check if the oil quality is normal, and check the antifreeze level of the fuel;

If the weather is particularly cold and the excavator has been shut down for a long time, please drain the engine coolant thoroughly;

At the same time, to prevent battery feeding, the battery must be removed and stored in a warm place;

Start the engine and run it once a month. If the antifreeze level and oil level are lower than the normal level, please add them to the normal level in a timely manner before starting. In cold weather, place the key in the preheating position until the preheating light is on (repeat preheating multiple times), then start the engine, idle for 5-10 minutes, and operate each cylinder 5-10 times without load, each time 5-10mm less than the maximum stroke. Finally, quickly operate each oil cylinder 5-10 times with the highest engine speed, and simultaneously operate left and right turns and forward and backward walks 3 times each. Until the system temperature rises to 50-80 degrees Celsius, it can operate normally. Continue to operate all working devices for 5-10 minutes before stopping the engine;

Run the air conditioning system once a month. First, let the cab warm up, and then let the refrigerant circulate in the air conditioning system for a week to maintain a certain thickness of oil film at the sealing ring of the air conditioning system to prevent refrigerant leakage. Check if the electrical control switch of the excavator.