Common problems and how to maintain excavators in winter.

1. Battery loss.

Winter is also extremely important for battery maintenance. The safest way is to remove the battery after get off work and store it in a cool, dry place.

2. The number of revolutions is not high.

The low speed is mainly because it is easy to shorten the working life of the planetary gears and the sun gear ring gear in the gearbox without sufficient preheating. The usual preheating is divided into two methods: air preheating and combustion chamber glow plug heating preheating. Before starting the excavator, generally preheat it for 5-10 minutes before starting the excavator.

3. The cooling water is frozen.

This problem can be avoided by draining the cooling water before it is frozen. Run at idling speed before turning off the engine. When the temperature of the cooling water drops below 60°C, turn off the engine and release the water. Put the drained water in a bucket and place it in the cab. It is also possible to add it the next day.

4. Operation slowed down on ice and snow.

The ground covered with ice and snow is very slippery. Be careful when walking or operating the machine. Do not operate the control lever suddenly. The ground will soften when the temperature rises after snow, which may cause the machine to tip over. Pay special attention. Do not leave the machine on the shoulder of the road or fall into the snow, otherwise there is a danger of tipping over.

5. Shutdown inspection needs to be careful.

After the operation is completed, check whether the antifreeze liquid level, the oil level and the oil quality are normal. If the antifreeze liquid level and the engine oil level are lower than the normal oil level, it needs to be added to normal before starting.If the weather is extremely cold and the excavator will be down for a long time, drain the coolant and remove the battery and store it in a warm place. Start the engine once every half month and charge the battery at the same time.