Excavator, common trouble, troubleshooting

First of all you need to have a clean driving room, at the very least, you must boot machine, it is good, it will repay you.

Hear the sprocket Jiji ring, that inside bearing grease has leaked, buy a new ready to change at any time.

When working, it is found that the oil can not be added, the oil circuit is checked, and the diesel filter element is replaced.

When the oil temperature and water temperature are increased, check whether the heat sink is blocked or not. Make sure to clean it frequently, especially the gap between the air conditioning network and the water tank net.

If it is found that the diesel filter core often blocked, it is necessary to check whether the rough filter has been blocked, timely clean-up, or not filter bulky debris, easy to cause the blockage of fine filter.

Wiper storage tank has a small pump, have nothing to spray machine, long time no use of water pump, easy to die aging.

It is found that the air conditioning is becoming smaller. Check that the inlet filter is wet and the water is clogged.

The engine suddenly found the black smoke, to check the air filter is blocked, the air filter can remove the test, eliminate the phenomenon of taking opium, excluding air filter problem. Found that the movements are not coherent, insensitive, you need to check whether the replacement of the pilot filter.

Found that the oil temperature becomes high, to check the hydraulic return filter core, whether it is blocked, whether there is copper powder, iron powder, need to check regularly, early detection, early settlement.

Found that the water temperature has increased, to check whether the thermostat is normal work, test methods: cold in the morning, open the water tank cover, start the engine, observe the tank has no flow, if there is, the thermostat is not tight. When the engine is working for 3 minutes, the fingers touch the cooling water. If the water temperature does not change, the thermostat can not be opened. Need to replace.

Water temperature is high, first of all to ensure the smooth flow of the radiator, from simple to complex inspection, thermostat no problem, to the water tank, water tank is no problem, to the engine waterways, waterways are not smooth, but also easy to cause high temperature.

It is found that the generator is normal if the battery is not checked, the belt is loose, the test voltage is raised, and the fuel pressure is raised.

The engine is found to check the white smoke, diesel filter or water separator is increased, in addition to the water filter cleaning diesel tank bottom debris and water up, start 30 seconds of white smoke is normal, that is not to determine the diesel water on water.

The engine is found insufficient horsepower, to check whether the normal operation of the engine cylinder, fuel injection nozzle is normal, test methods: morning cold start engine, one by one touch each exhaust port, or fuel injection quantity not less cylinder it exhaust vent temperature of exhaust gas and the normal fuel injection outlet temperature has great difference.

Start difficult, first of all to ensure the normal fuel supply, listen to the engine and motor sound, can bring the engine, the general lack of electricity, motor idling, magnetic suction damage or gear jumping.

Found lack of electricity, check whether the battery leakage, the connector should be covered with rubber pad, to avoid rain soaking.

Found that the cab on the right side of the abnormal sound, usually large arm pin, the lack of butter, to ensure that the big arm pin is not the lack of butter, and then find other reasons.

It is found that the arm is noisy and is usually a small arm joint. The pin is missing the butter.

To find out the circuit problem, first check the fuse.

The turntable found abnormal sound, first check the gear wheel is broken, open the cover in the map will be able to see the big gear ring. And then to the rotary pump.

The air conditioning outlet can not be plugged.

Summary: excavator machine problems, as I think the machine hand, simple or to deal with their own society, even if not, also want to know what is going on, a little problem can be solved on their own, to exercise their own, is also a kind of growth, I have a hobby, I I love to watch others repair no repair things, after I know its structure, principle, communication and sharing, no matter who, as long as the mind frequently, we are the best, three of us are walking together there must be my teacher, director of taking people to continuously enrich themselves, I am never willing to, wrong place please.