With the coming of winter，The temperature is gradually decreasing，For construction machinery，Winter maintenance is particularly important.。In order to ensure the stable operation of XGMA's mechanical equipment in the cold season,，Avoid equipment failure due to improper maintenance，We have compiled a winter maintenance guide especially for users.。
01
Oil selection
The oil is from the engine.“ Blood ”，In the cold winter，It is very important to choose the right oil.。In order for the equipment to be adequately lubricated,，We recommend the user to select the engine in accordance with《GB11122-2006 diesel engine oil》Standard XGMA genuine engine oil（China 4 engine adoptsCK-Grade 4 and above engine oil）。
When selecting the viscosity grade of the oil，It should be decided according to the local climatic conditions.。Generally speaking，The lower the applicable ambient temperature.，The lower the required oil viscosity grade.。Refer to the following table for the recommended viscosity grade of engine oil：
|
Applicable ambient temperature℃
|
Viscosity grade
|
|
-20℃Above
|
15W-40
|
|
-25℃Above
|
10W-30/10W-40
|
|
-30℃Above
|
5W-30
|
|
Extremely cold areas
|
0W-30
|
02
The choice of diesel
High-quality diesel is the guarantee of efficient operation of the engine。In order to make the engine have higher reliability and lower fuel consumption，We recommend that users choose to comply with《GB 19147-2016 Vehicle Diesel》Standard clean light diesel fuel，Different brands of diesel oil are selected according to the ambient temperature of the use area.。It is recommended to select different brands of clean diesel according to the following table.：
|
Diesel grade
|
Use the ambient temperature
|
|
No.0 diesel oil
|
4℃Above
|
|
-No.10 diesel oil
|
-5℃Above
|
|
-No.20 light diesel oil
|
-14℃Above
|
|
-No.35 light diesel oil
|
-29℃Above
|
|
-No.50 light diesel oil
|
-44℃Above
|
03
Coolant change
As the temperature drops,，The cooling system also needs to be adjusted accordingly.。We recommend users to replace it with one that meets the national standards.《GB 29743.1-2022 Motor Vehicle coolant》Antifreeze for winter use，Generally, the freezing point is 10 lower than local minimum temperature.℃Antifreeze。This effectively prevents the cooling system from freezing，Ensure the normal operation of the engine in the low temperature environment。It is recommended to select different types of antifreeze according to the following table.：
|
Freezing point(℃)
|
Model
|
Applicable ambient temperature(℃)
|
|
-15
|
XGMA special antifreeze-15℃
|
Above-15℃But there may be an approach.-15℃A low temperature area
|
|
-25
|
XGMA special antifreeze-25℃
|
The lowest temperature is-15℃To-25℃About the area
|
|
-35
|
XGMA special antifreeze-35℃
|
The minimum temperature is at-25℃To-35℃The area of
|
|
-45
|
XGMA special antifreeze-45℃
|
Suitable for minimum temperature below-35℃A cold region
|
|
-60
|
XGMA special antifreeze-60℃
|
Suitable for extremely cold special environment(Generally beyond the normal use environment )
|
Special reminder：Water is not allowed to be used as coolant for the fourth non-road engine.，Use water or liquid with freezing point lower than ambient temperature as coolant.，Cooling water or antifreeze freezes and expands in winter，Can cause the engine block to、Cylinder head、Expansion and cracking of urea pump and other parts。
04
Application and storage of urea solution
For XGMA's mechanical equipment using urea system，Attention should also be paid to the cleanliness and storage of urea solution。Ensure that the filled urea meets the national standard《GB 29518-2013》Prescribed 32.5%Urea solution。When filling urea or disassembling and assembling the urea pipeline，Maintain the cleanliness of the urea，Avoid dirt、Impurities（Including water）Enter the urea injection system。These impurities can seriously damage the urea pump and the urea nozzle。
In addition，Do not overfill urea in winter，The liquid level indication is just full。Because when the temperature is below-11°CTime，Crystallization of urea causes volume expansion，May affect the safety of urea tank。
In short，Maintenance in winter is the key to ensure the stable operation of XGMA's machinery and equipment。Hope that the majority of users can pay attention to and follow our maintenance recommendations.，Keep your equipment in good working condition in the cold season。
If you have any questions or need help，Please feel free to contact our after-sales service team。
Welcome to call the official customer service hotline of XGMA
400-6618-668
