Tibet Komatsu 75uu excavator owners share winter maintenance

(1) Adding antifreeze must be added to the authentic area temperature and we generally add -35 °C)

(2) For the winter hydraulic oil, the winter use of the label and the excavator instructions on the same label is too high. The temperature of the hot car does not come up for a long time.

(3) The engine oil is best used by the brand excavator agents. Some of the other viscosities are too high. The winter is too cold and the engine is very damaged.

(4) When the warm car starts to work, you must first slowly let the cylinders lubricate. Because it is too cold, the oil seal is easy to break. We are called morning exercises.

(5) When you are doing things, you should do it slowly. You can't use too much force because the oil temperature is not too cold. Every metal piece is too brittle and too hard to break. I have seen that because the driver is too cold, she does not do morning exercises and rotates directly. Interrupt the middle tooth of the rotation)

(6) Turn off the car after work, so as not to check the oil, and try to retract the cylinders into the tank. Avoid freezing snow in the tank at night. The hot car will not be chemically catalyzed for a long time. Because the temperature is low, the oil seal is very easy to rot (special dust-proof oil seal) and the construction site can't wait for your hot car to heat up for a long time to get the ice.

(7) If you add fuel to the mark, you can add zero to the 10th level and add 0 to the diesel. You can't get the car with it (the wax is blocked by the wax)

(8) If you don't do the long-term leave, if you stop working this year, you must re-enter the cylinders as much as possible in the tank and put the quilts in the cylinders. I am in the winter of Tibet, and the temperature of the ultraviolet rays is -30 °C. Packing around is good for each oil seal. Otherwise, a cold and hot oil seal can't stand it.

(9) If you don't do things for a long time, you have to remove the battery positive and negative level and put it in a place with a good temperature. If you stop at the roadside (there is no parking lot in some places), you must take the battery back to the place where you live because Tibet is much better. The locals did not electrify herders most like the battery. We usually do things at night to steal the battery is normal. Of course, car wash scraping mud these do not need to write. The above is that we generally maintain this in Tibet (other places do not know)

The most common misunderstanding of Komatsu 75uu excavator winter maintenance equipment is

1. Change the oil, always change when the machine is cold, it is not right, the oil is cold and the concentration is large, it can not be put clean, it should be after ten minutes of shutdown, it is clean.

2. Beat butter, butter should be played every time after work, but sometimes people think about playing before going to work, that is not right, not only people suffer, but also may cause damage to butter. One sentence tells you, winter, all After the equipment oil is cold, it will have a large concentration, which is not good for the machine. So after booting, idling for five minutes, let the machine fully warm up.

I have maintained this equipment.

1. In addition to the engine needs to be warmed up in winter, there is a place where you can not ignore it, that is, the hydraulic cylinder, and the walking. After the machine is preheated, the expansion and contraction movement of the cylinder should also slowly move back and forth to reach the oil seal, piston, hydraulic pump. Fully preheating, walking is also preheating, thus extending the service life of the cylinder. The equipment is generally added antifreeze in the winter water tank, it will be fine, the friend who added water remembers, go to work, put off work, or the cylinder will be because The thermal expansion and contraction of water breaks through your equipment. https://jnjmzm.wixsite.com/sdjygcjx