New Year's Day has passed，With the arrival of the new year in the Gregorian calendar，Our traditional Spring Festival holiday is getting closer and closer.。Uyghur fans who have been busy for a year，It's also time to schedule work in advance.，Get ready for the Spring Festival.。People rest，The equipment also needs to rest.，Don't forget to get your work buddy settled in, too.~

According to the weather forecast,，After the Minor Cold solar term on February 6, there may be a new round of cooling crit.！To ensure that your work equipment is properly maintained and placed during the winter，So as not to affect the normal operation of the next spring.，Xiaowei asked Wittgen, a senior service expert in China, to provide you with a practical winter maintenance guide for road equipment.。Welcome to collect，Check leaks and fill vacancies，Take a look at your equipment. Are these things in place before the winter break?？

Winter maintenance of engine system

The engine is the heart of the equipment.，It is the source of surging power of equipment.，In the cold winter, Xiaowei suggests that you do the following work well.：

1.Choose antifreeze suitable for local temperatures，Generally, the freezing point is 10 lower than the local minimum temperature.℃ Left and right antifreeze。Prevent volume expansion of cooling liquid after freezing，Damage to parts，Change the antifreeze every 1 year；

2.Winter fuel needs to be replaced in advance before winter comes，Generally, the diesel grade is selected to be 5 ℃ lower than the ambient temperature℃，Avoid diesel wax deposition due to low temperature，Otherwise, the engine may not start normally.；

3.According to the operating environment of equipment，Select the engine oil with the corresponding viscosity grade，For example：10W-40，W Subtract 35 from the preceding number，The applicable minimum ambient temperature is -25℃；

4.The temperature is low in winter、Diesel oil atomization is poor、Oil viscosity is high、Coolant temperature is low、Insufficient battery capacity。Equipment with intake air preheating function，After the key is powered on，Wait until the intake preheating indicator is off.，Start the engine again，Avoid starting difficulties；

5.Open the anti-icing device of the compressed air system and check the ether level periodically。

Notice：Long-term parking belt in winter SCR When the engine of the system，The following maintenance items and precautions are also included：

1.What is the freezing point of urea solution? -11℃，Urea freezes and increases in volume by about 7%，When parked for a long time，Do not overfill the urea tank.；

2. The urea solution has a shelf life，Equipment has been parked for more than 6 months，The urea solution in the urea tank must be replaced before starting work.；

3. Regular inspection SCR Liquid level and piping of the system，Make sure there are no leaks or other problems.；

4.Shutdown precautions：Equipment with power supply gate，Engine stalling，After the key switch is powered off，Wait for the urea system to stop working，After the power main switch indicator is off，Then turn off the power switch.；

5. Equipment parking：Try to park the equipment in a place that is protected from extreme cold temperatures and wind and snow.。

These maintenance items help to ensure that the engine's aftertreatment system remains in good condition during prolonged winter parking，Reduce possible problems and damage。

Maintenance of mechanical parts in winter

The mechanical part is the skeleton of the device.，There is no need to elaborate on the importance of the equipment.。The mechanical part is also a relatively large part in the process of equipment maintenance.，We must carefully do a good job in the maintenance of each module.，Avoid omissions。Maintenance of mechanical parts in winter，You Uyghur fans need to do these jobs.：

1.Before parking the machine for a long time in winterAll mechanical hinge points shall be provided.、Lubrication and maintenance of bearings；

2.Check the integrity of the bellows of each mechanical part，Replace the damaged seal in time.；

3.Metal contact surfaces exposed to the air shall be subject to anti-rust treatment.；

4.Periodically start the engine and run all reduction gearbox，Prevent shaft seals in the gearbox、The rubber seal is damaged due to long-term parking and adhesion with gear oil.。

Tips：Lubrication of mechanical parts of equipment、Dustproof、Rust-proof、The anti-stick treatment shall be carried out in the correct order。

Maintenance of hydraulic system in winter

If the mechanical part is the skeleton of the equipment,，Then the hydraulic system is the muscle of the device.。At work，Those are precise and smooth、Homework full of power is inseparable from it.。The hydraulic system also needs the care of the Uyghur fans.。During the long winter break，These tasks are indispensable：

1.Periodically start the machine and turn on all hydraulic functions on the machine，Operate the hydraulic drive elements periodically，To prevent the associated seal from being damaged by prolonged parking.，And the occurrence of faults such as corrosion of metal components such as cylinder rods.；

2.Retract all cylinder rods as far as possible into the hydraulic cylinder chamber，Better protection of the surface of the cylinder rod。

Tips：The selection and cleanliness of hydraulic oil is very important for the performance maintenance of hydraulic system.。

Winter maintenance of electrical system

Electrical system is the nerve of the equipment.，Is the equipment moving smoothly?、An important guarantee for efficient operation。We must do a good job of electrical system maintenance.，Only in this way can we ensure that the equipment is in better condition for the coming year.。About the maintenance of electrical system，Xiaowei suggests that you do the following maintenance work：

1.Check the level of battery fluid；

2.PH Value detection；

3.Battery pile head maintenance。

Tips：Please start the engine every half a month.，Charge the battery，Run all hydraulic actuators simultaneously，Uch as a rotating hydraulic motor.、Telescopic cylinder, etc。Do not remove the battery from the machine，Prevent long-term parking，The equipment has the fault phenomenon that the internal software program of the controller is lost.。

Winter maintenance of water spraying system

The water spraying system of the machine also plays an important role in the working process of the equipment.。The temperature is lower in winter.，Every Uyghur powder should be strictly protected from damage to equipment caused by freezing and expansion.。Maintenance of the water spray system，These tasks are indispensable：

1.  Drain the working water tank and pipeline.、Water filtration、Water pump、Water in the spray beam；

2. Replace the anti-corrosion rod in the water tank of the machine every year.。

Tips:  If the machine is equipped with a high pressure wash water pump，Don't forget to drain the system as well。

The above is Xiaowei's instructions for equipment maintenance in winter.，I hope you can take it seriously.，Ensure that the equipment can survive the winter.，Meet the new construction season in good condition。For more detailed information on equipment care and maintenance，Please consult the customer service staff of Wirtgen's local agent in China.，They will provide you with more professional、More targeted advice and services。