Failure phenomenon:
A Caterpillar 308DCRSB excavator started to emit blue and white smoke just after it was started, and it didn't take any chance to increase the throttle after 10 minutes of driving! The speed of the hot car is running, the cold car is very serious, and there is no burning oil. Sometimes when walking, it emits black smoke and the flame is turned off. After working for more than 2 hours, it becomes weak. What's going on?
Supplement:
It's still not good to change all the nozzles today.
Caterpillar 308DCRSB excavator engine emits black smoke and stalls, walking failure analysis:
1 First check whether there is any problem with the supercharger.
2 If the excavator does not hold back the vehicle, the piston ring may be broken.
3 may be the problem of the air intake system, see if the air filter is dirty, whether the supercharger is locked.
4 If the blue, white, and black smoke is emitted, it indicates that the engine should be overhauled.
5 It's just that the white smoke may be caused by the broken cylinder liner or cylinder gasket.
6 Black smoke from the engine indicates insufficient combustion or insufficient air, and the air filter is blocked.
7 Measure the cylinder pressure to determine if overhaul is required.
8 The hydraulic system has a large flow.
Extended reading:
What is the problem with the Caterpillar 308DCRSB excavator unable to walk?
1 There is a problem with the center joint oil seal damage.
2 Main relief valve and hydraulic pump failure.
3 Multi-way valve failure.
4 The oil pipe is blocked.
5 Internal wear of the travel motor, internal leakage 6 Internal wear and tear of the travel motor.
7 Walking hydraulic oil pipe is blocked.
8 The oil supply line is damaged.
