The excavator stalled again
Posted: Dec 4th, '24, 20:56
Generally speaking, there are four main types of flame-out faults in excavators:
Automatic engine flameout, self-flameout;
Excavator load is large, hold the car to stall;
The excavator engine can not start after sudden flame failure;
Excavator engine is easy to stall at low speed.
Among them, automatic flameout and holding car flameout are the two most common forms of failure.
Interestingly, there are not too many categories of flameout failure, but there are unusually many reasons for flameout, mainly:
Excavator oil leakage or fuel injection pump failure; Fuel quality is poor or unclean;
High moisture content of fuel; Oil supply is not smooth;
Fuel oil leakage; Poor engine lubrication;
Fuel pump drive shaft fracture; Engine holding shaft burning tile;
The engine intake resistance is large, the oil intake is blocked;
Hydraulic system problems: pump pressure is too large;
The control system receives the wrong signal;
Nozzle injection length is not up to standard; The filter element has a problem;
The seal is damaged; Hydraulic pump and engine power does not match;
Improper adjustment or wear of the valve transmission rod;
The internal coil of the oil cut-off valve is damaged;
Pressure limiting valve hole is blocked by iron filings, oil;
From the above, we can see that there are too many reasons for flameout, so we should pay more attention to the investigation and maintenance of the excavator flameout fault.
The following are the steps for the troubleshooting and maintenance of the excavator flame failure:
01 Check whether the fuel tank is short of oil.
What is the moisture content of the fuel used?
The oil is best purchased as required and matches the engine model.
02 Are oil pressure, water temperature and other instruments normal?
Determine whether the parts match the gap improperly or the running resistance is too large?
Or is it because the temperature is too high to cause the piston to bite the cylinder or the bearing bush to hold the shaft?
03 Check whether the engine fuel pump drive shaft is normal.
Are engine idle springs, oil lines, valve transmission rods, etc. in good order?
Check whether the pressure limiting valve is blocked? Engine lubrication?
04 Check whether the power of the hydraulic pump of the excavator matches the power of the engine?
Check the oil supply system of the engine. Is the oil supply line blocked?
Are there any air leaks or oil leaks?
Is the filter stuck or dirty?
Is the drain cover of the oil-water separator tightened?
Hydraulic oil filter is not blocked by dirty things and so on.
Choose DIG-DOG for high-quality, customizable brush cutters for skid steers with fast delivery. Contact us today to discover how our superior products can enhance your land management tasks!
for more info just visit our website at www.dig-dog.com
contact # : +86 158 6218 2088
email : sales@bonovogroup.com
Automatic engine flameout, self-flameout;
Excavator load is large, hold the car to stall;
The excavator engine can not start after sudden flame failure;
Excavator engine is easy to stall at low speed.
Among them, automatic flameout and holding car flameout are the two most common forms of failure.
Interestingly, there are not too many categories of flameout failure, but there are unusually many reasons for flameout, mainly:
Excavator oil leakage or fuel injection pump failure; Fuel quality is poor or unclean;
High moisture content of fuel; Oil supply is not smooth;
Fuel oil leakage; Poor engine lubrication;
Fuel pump drive shaft fracture; Engine holding shaft burning tile;
The engine intake resistance is large, the oil intake is blocked;
Hydraulic system problems: pump pressure is too large;
The control system receives the wrong signal;
Nozzle injection length is not up to standard; The filter element has a problem;
The seal is damaged; Hydraulic pump and engine power does not match;
Improper adjustment or wear of the valve transmission rod;
The internal coil of the oil cut-off valve is damaged;
Pressure limiting valve hole is blocked by iron filings, oil;
From the above, we can see that there are too many reasons for flameout, so we should pay more attention to the investigation and maintenance of the excavator flameout fault.
The following are the steps for the troubleshooting and maintenance of the excavator flame failure:
01 Check whether the fuel tank is short of oil.
What is the moisture content of the fuel used?
The oil is best purchased as required and matches the engine model.
02 Are oil pressure, water temperature and other instruments normal?
Determine whether the parts match the gap improperly or the running resistance is too large?
Or is it because the temperature is too high to cause the piston to bite the cylinder or the bearing bush to hold the shaft?
03 Check whether the engine fuel pump drive shaft is normal.
Are engine idle springs, oil lines, valve transmission rods, etc. in good order?
Check whether the pressure limiting valve is blocked? Engine lubrication?
04 Check whether the power of the hydraulic pump of the excavator matches the power of the engine?
Check the oil supply system of the engine. Is the oil supply line blocked?
Are there any air leaks or oil leaks?
Is the filter stuck or dirty?
Is the drain cover of the oil-water separator tightened?
Hydraulic oil filter is not blocked by dirty things and so on.
Choose DIG-DOG for high-quality, customizable brush cutters for skid steers with fast delivery. Contact us today to discover how our superior products can enhance your land management tasks!
for more info just visit our website at www.dig-dog.com
contact # : +86 158 6218 2088
email : sales@bonovogroup.com