Excavator works in winterPrecautions

Recently，A cold wave is coming，The temperature plummeted，Pay attention to cold prevention and warmth preservation，Shantui Excavator is here to remind everyone to wear thick clothes to prevent cold and keep warm.，Don't forget your own.“Big baby”The excavator shivered in the cold wind.。Daily maintenance in winter can effectively reduce the possibility of excavator failure.，Prolong the service life of excavator。

Today，Let me tell you what we should pay attention to when using excavators in winter.？

01.Beat the butter

Butter is grease.，Effectively lubricate all parts of the excavator，Reduce wear between working parts，Prevent dirt such as sand from being sucked into the gap of the working device。Failure to grease the excavator on time，It will cause the butter to fail to seal.，Thereby increasing the wear between the components.，Reduce the service life of the excavator。In winter, butter should be made with low viscosity、Diluted grease。

02.Choose diesel and engine oil

In the winter，The average temperature is very low，Viscosity of various oils increases，Engine starting can become difficult，At this time, it is necessary to replace diesel oil and oil with low viscosity.。

Diesel

Diesel：The freezing point shall be lower than local minimum temperature by 7-10℃。In low temperature environment，If the diesel oil with appropriate label is not replaced in time,，It will directly affect the fluidity of diesel.，Increase its viscosity，Causing poor atomization，This will directly lead to the decline of the power performance and economic performance of the diesel engine.。

The fuel used must meet the standard.GB 20891，According to the local ambient temperature and the standardGB 252 specify selection，The details are as follows：

No.5 vehicle diesel:

The risk ratio is 10%The lowest temperature is 8.℃Used in more than one area；

 No.0 vehicle diesel oil: 

The risk ratio is 10%The lowest temperature is 4.℃Used in more than one area；

 -No.10 automotive diesel:

The risk ratio is 10%Where is the lowest temperature?-5℃Used in more than one area；

 -No.20 vehicle diesel oil:

The risk ratio is 10%Where is the lowest temperature?-14℃Used in more than one area；

 -No.35 automotive diesel:

The risk ratio is 10%Where is the lowest temperature?-29℃Used in more than one area；

 -No.50 motor diesel oil:

The risk ratio is 10%Where is the lowest temperature?-44℃Used in more than one area。

Note：The fourth national diesel engine should be used with sulfur content less than 10ppmDiesel oil，When the sulfur content in diesel is too high, it will cause damage to the catalytic components inside the muffler.（Commonly known as poisoning），After poisoning, the engine exhaust emissions will exceed the standard, resulting in engine power limitation.，The whole vehicle is weak，Unable to operate。

Engine oil

 

Engine oil：In the north of China and the plateau、Machines operating in cold regions，Replace the engine oil with a higher grade in winter.，Such as：Numeral 10W-30 and 5W-40 oil，Or higher grade oil；For machines operating in warmer winter areas such as the south,，Whether the oil needs to be replaced can be considered according to the actual local temperature.。

Note：The fourth national standard engine must be used in accordance withCK-4 Standard oil。

03.Battery maintenance

Under long-term low temperature environment，The battery will also lose power for a long time.，Just as the range and speed of the battery car will decrease in winter.。The storage battery is covered with a quilt to keep warm.，Or remove the battery and store it in the room according to the actual temperature.，Install it again before operation the next day.。If the battery electrolyte level is found too low，Distilled water or electrolyte should be added before work the next morning，Don't add it after the completion of the day，To prevent freezing at night.。

04.Inspection of Excavator Chassis

Check the chassis，Check whether the bolts are loose everywhere.，Whether there is leakage in the pipeline.。It is also necessary to regularly remove rust and paint for the chassis.，Butter, etc.。

 

05.Preheat operation

The excavator must be fully preheated before starting.，Otherwise, low temperature load operation will cause serious wear and tear of the machine.。In addition，Valve springs, injector springs, etc. Are also susceptible to“Cold crisp”And break。

Engine warm-up operation

 

1. Before the engine is started，Turn the start key to“Preheat”Gear for preheating 10s；

2. After the engine is started，Idle operation 5min，Check whether the instrument and all indicator lights are normal after the operation is stable.。

Hydraulic warm-up operation

 

When the hydraulic oil temperature is low，The hydraulic unit may be damaged if it is operated rapidly.，At the same time，Pay full attention to the safety of the surrounding environment during preheating operation，When the temperature is low，People's reaction will be relatively slow.，It is necessary to prevent people and things around you from being touched during preheating.。

1. Engine running at medium speed，Operate the bucket，Preheat；

2. Raise the engine speed to maximum，Operate the bucket and arm continuously for 5 minute；

3. Support the machine at one side and rotate the track to preheat the left side respectively.、Right travel motor。

06.Add an appropriate amount of antifreeze

At low temperatures, antifreeze should also be added to the excavator cooling system.，The proportion of antifreeze added to the cooling system shall be the proportion at the lowest local temperature.，At the same time, check whether the antifreeze is normal in winter.。

Note：It shall be filled in accordance withGB 29743 the national standard antifreeze。

Winter Construction

Winter Construction

Winter construction due to low temperatures，We need to pay more attention and pay more attention.！You should learn more about machine maintenance and how to deal with unexpected situations in winter.，This will ensure the safety of personnel and equipment.，Normal construction！