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26
11. Technical failure causes and solutions
Fault
Cause
engine
Water tank
boiling (steam
rising)
The water
temperature
indicator is on
and the starter
works without
the engine
starting and
gives off black
smoke
Exhaust is white
or blue
The coolant level is insufficient
Make up
Fan belt slack
Adjust belt tensioning
There is powder and mud in the cooling
circuit
Empty, clean and readd
coolant
Clogged or damaged radiator blades
Clean or repair
The temperature sensor is out of order
replace
Fan belt loose or oil coated
Retighten or clean
Damage of fan
replace
There is no fuel
Fill the tank with fuel
There is air in the fuel loop
Repair the air inlet and
exhaust
There is something wrong with the fuel
injection pump or nozzle
Replace the fuel injection
pump or nozzle
Lack of compression
Consult with the company
agency
Automatic engine shutdown due to safety
device (low oil pressure or high water
temperature)
Check the oil and water level
Air filter element blocked
Clean or replace
There is something wrong with the nozzle
Replace the nozzle
Poor fuel quality
Switch to quality fuel
Excessive engine oil
Restore the recommended
oil level
The fuel is of poor quality
Use quality fuel
Cylinder liner or piston ring wear
Consult with the company
agency
Electrical
system
The start key is
in
the
start
position and the
start machine is
not working .
The
light
is
weak at high
speed .
The
indicator
light is too dark
or often goes
out .
Electrolyte
spillage .
Wiring problems
Inspect or repair
Switch out of order
replace
Battery undercharged
charging
The starter is out of order
Consult with the company
agency
The electrical circuit is faulty
Check wiring connections
and repair
The generator and regulator are out of order
Consult with the company
agency
The regulator is out of order
Consult with the company
agency
The regulator is out of order
Consult with the company
agency
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