Mini excavator hydraulic device preheating, hydraulic oil temperature is low, if the rapid operation will cause hydraulic device damage. Here's a quick summary:
1. The mini excavator engine runs at medium speed, operates the bucket, and preheats;
2. Jack up the machine to rotate the track, and preheat the left and right walking motors respectively;
3. Then, increase the speed of the engine, so that the bucket and bucket rod work continuously for 5 minutes;
At the same time, preheating operation should pay full attention to the safe environment around, when the temperature is low, people's response will be relatively slow, to prevent in the preheating time to meet people and things around.