Knowledge points

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Excavator in winter

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— Doujun Lecture Hall —

The temperature is low in winter

Machine friends often get ready to start work in the early morning.

It is found that the excavator cannot be started.

But don't panic when it comes to problems.！

Do your homework in advance.

Talent“Adjust measures to local conditions”Solve the problem

Current period，Mr. Doosan has compiled the following four common situations.

Let's study together.~

1

The battery power should be sufficient.

When the weather cools down in winter.，Battery power will also be affected.，So if it's an older battery,，It is easy to lose power too fast.，In this case, a new power supply should be replaced as soon as possible.，Avoid the situation that there is no power when starting.。In addition，When the north enters the off-season of winter construction，Excavators may also be parked for too long.，Causing the battery to lose power。This situation，The battery can be disassembled in advance，Store indoors，It can be installed in advance when it is necessary to start construction.。

Dou

Jun

Speak

Don

2

Prevention of oil circuit freezing is the key point

Except the power supply is out of power，In winter, the biggest factor affecting engine start-up is fuel.，It is recommended to use anti-freeze fuel in winter according to the local minimum temperature.。If you want to stop parking for a long time,，Park as far as possible out of the wind，A sunny place。Fill up the fuel tank，Let stand for about one hour，Open the bottom drain，Drain the excess water mixed in the diesel oil，The situation that the water in the diesel oil is analyzed to freeze the fuel oil circuit can be avoided.。Start the engine to run at intervals.，Check the antifreeze、Sufficient oil, etc.。

 

Dou

Jun

Speak

Don

3

Engine preheating is not sloppy

Everyone knows the principle of expansion with heat and contraction with cold.，After entering the winter，Due to the drop in temperature，Normal or minor leaks that would have been used in the summer、Wear, failure, etc.，It's gonna get a lot worse.。For example，Plunger clearance in diesel pump becomes larger，Change in valve lash，The gap between the piston ring and the cylinder liner becomes larger and many other dimensional changes.，Are not conducive to winter engine start-up.。So，Be sure to do a good job of preheating before starting the excavator.。

Dou

Jun

Speak

Don

4

The quality of oil products should be checked

The temperature drops，The viscosity of the oil increases，Increased resistance between moving parts，Resulting in a decrease in the number of revolutions when the engine is started，It can also cause engine piston rings.、Increased wear of components such as cylinder liners and crankshaft connecting rods，Therefore, it is necessary to replace the winter engine oil in time in winter.，To reduce wear and load at engine start-up。In addition，Doosan Jun's warm tips，Doosan original hydraulic oil and love machine better match oh~

 

Dou

Jun

Speak

Don

Understand the above four common situations

When the excavator is difficult to start in winter

The machine friends can be calm.“Suit the remedy to the case”Did you？

Winter is coming

Friends of the plane, together with Doosan.

For winter“Nuggets”Get ready for war.！