KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
80
The tractor engine can be started
when the instrument panel front
board looks as follows.
The tractor can be started with following indicators displayed:
– emergency pressure in the second pneumatic system circuit;
– emergency pressure in the first pneumatic system circuit;
In all other cases, eliminate the fault as per indication of alarm parameters.
4.10.3 After the start-up, warm up the engine to the cooling fluid temperature of 40--45 °C
first at the minimum speed and then at average speed of the crankshaft. Oil pressure in the
mainline of the heated engine unit shall be within the range of 0.45-0.6 MPa (4.5 -6 kgf/cm
2
)
at the rated speed and at least 0.1 MPa (1 kgf/cm
2
) at the minimum speed. At the same time,
indicator lamps
,
,
, engine oil pressure indicator lamp
shall go out,
the flashing of lamp
for the emergency parameter of one of the tractor systems
shall stop.
CAUTION!
If the emergency parameter indicator lamp
of one of the tractor systems
keeps flashing permanently,
one of the parameters must be checked:
–
oil pressure in the engine is below the standard value;
–
pressure in air cylinders of both circuits is below the standard value;
–
cooling fluid temperature is above the standard value;
–
parking brake is pulled up.
4.11 ENGINE START-UP AT NEGATIVE TEMPERATURES
For tractors with 8481.10 and OM460LA (Mercedes) engines:
Electrical torch (ET) of the tractor ensures start-up of the engine at the outdoor temperature
down to minus 20
0
C.