Excavator engine maintenance tips

The length of engine life depends on whether the correct maintenance, the same brand with the same tonnage or even the number of hours, the price of the two excavators will vary by tens of thousands.

In fact, the reason is one, that is, the core engine of the excavator spare parts is properly maintained, used carefully and there is no problem of failure, so it is natural to eat when buying and selling.

Wrong habits

Error 1, loading in advance

The idle time is not enough for 3 minutes to load, so that the excavator engine load is running; immediately after the engine catches fire, the throttle is increased.

In fact, the reason is very simple. Due to the insufficient idle running time of the excavator, the oil pressure does not reach the working requirement of the full floating bearing. At this time, the throttle oil is increased, the exhaust pressure of the engine is increased, and the supercharger rotor speed is rapidly increased. In the case of insufficient bearing lubrication, the supercharger works at the highest speed, which will cause rigid friction between the shaft and the bushing and damage the bearing.

Response measures: Many old drivers hang the idle speed hot car for 3-5 minutes, showing the importance of idling! The second is to observe whether the oil pressure meets the komatsu excavator spare parts requirements through the oil pressure gauge, and the throttle cannot be increased immediately after the engine starts.

Error 2, sudden stop under high speed conditions

At this time, the supercharger will rotate at high speed due to inertia, but the oil pressure has disappeared after the engine is stopped, and the supercharger bearing cannot be lubricated and cooled. In the long run, the oil will be oxidized and coked, resulting in the turbocharger bearing sintering.

Countermeasures: After the engine is running at high speed, first reduce the speed, reduce the load, and idle for 3-5 minutes, so that the speed and temperature of the supercharger are reduced and then stop. https://jnjmzm.wixsite.com/sdjygcjx