Under the epidemic, engineering robots have also begun to "home at home" mode, and many A friends are beginning to miss the day when the construction site is turned on! It is hoped that the epidemic will end soon and work will begin soon. I believe that with the easing of the epidemic, the days of leaving labor are not far away. Recently, many countries around the country will soon start to resume work and resume production. Are you ready?
Then what problems will be caused by long-term release of construction machinery and equipment before resuming work after the epidemic? What kind of inspections do I need to do before I start work after taking a holiday break?
I. Disinfection of key contact parts of excavator
First of all, it is recommended that you carry disposable disinfection wipes with you. Every time the driver and passenger get on the bus, they should use the wipes to clean and disinfect their hands.
Then, wipe the side door and handle with a disinfection wipes ring car to do external disinfection.
Next, use disposable disinfection wipes or 75-degree alcohol-soaked towels in key areas in the cab to wipe the seats, joysticks, safety lock handles, dashboards, and screens.
Note that the ignition point of alcohol is only 22 °. Do not smoke or use a lighter after disinfection with alcohol!
Air conditioning is the key, do n’t forget to wear a mask
The air-conditioning filter element is an important barrier that blocks the internal and external environment of the excavator. One brother suggested that everyone check the condition of the air-conditioning filter element before reworking.
If the excavator works in a crowded area and there is no new air-conditioning filter replacement on hand, the following methods can be used to disinfect the air-conditioning filter:
After removing the air-conditioning filter element, you can use a hair dryer or a vacuum cleaner for simple dust removal and cleaning, and then spray a chlorine (bromine) disinfectant solution (such as 84 disinfectant), and finally rinse it with water and dry it for later use. One of the articles of this virus prevention guide.
Of course, conditional dug brothers can also carry out visual deodorization and sterilization construction of air-conditioning pipelines, reducing external bacteria invasion and bacterial breeding caused by wet and cold weather in winter.
In addition, the internal circulation cannot completely block the entrance of external germs, and wearing a mask is also indispensable.
Second, the machine does a comprehensive inspection
Check before starting
1. Check the oil level and quality of the engine oil, and add XCMG special oil if necessary.
2. Sewage and drainage of fuel tank and oil-water separator.
3. Antifreeze inspection.
√ Level check of auxiliary water tank
√ Check radiator level
4. Air filter inspection
Check the air filter installation, whether the air filter is damaged.
5.Fan belt inspection
Check the belt tension. If cracks appear, they must be replaced in time.
6. Engine turbocharger inspection
Before starting, remove the turbocharger oil inlet pipe and add an appropriate amount of oil to ensure that the rotor is not stuck.
7.Hydraulic oil inspection
Check hydraulic oil level and quality and add or replace if necessary.
8. Gear oil inspection of rotary reducer
Check the gear oil level and viscosity. If the gear oil becomes more or less, the cause must be found and dealt with in time.
9. Travel motor gear oil inspection
Check for leaks around the motor and check the gear oil viscosity.
10. Battery inspection
The maintenance-free battery judges whether the power is sufficient by observing the color of the hole. Ensure that the positive and negative electrodes are properly connected during installation.
11. Check the connections of various pipes, lines and joints, and adjust the bolt tightness in time.
Start check
Instrument inspection
The meter shows whether it is normal and whether there is an alarm.
2. Normal startup
Each start must not exceed 10 seconds. If it doesn't start, be sure to wait 30 seconds and try again.
3. Start at low temperature
The engine must be warmed up in cold weather.
Check after startup
1. Inspection of instrument alarm information
After the excavator starts, observe the instrument for alarm information and display whether it is normal. If an alarm occurs, stop the machine and check immediately.
2. Engine running check
Run for 5-10 minutes at idle speed, observe the smoke color, engine sound, and whether there is any abnormality in the lower exhaust.
3. Inspection of hydraulic system
Listen for abnormal noises when the hydraulic pump, valve, cylinder and motor are running.
Preheat the hydraulic system and check whether the actions are normal.
4. Lubrication and inspection of working device pins
Add butter to each pin and lubrication point, and if necessary, squeeze the old oil out of the oil passage.
