KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
44
The lock has the following positions:
zero position (fixed)
– the key is inserted vertically;
first position (fixed)
– the key is turned in the clockwise direction. Power is supplied to the
generator excitation winding;
second position (non-fixed)
– with the key being turned further in the clockwise direction
power is supplied to the generator excitation winding, voltage regulator and starter drive
relay. In case of the key being lowered from this position, it will return to the first position;
third position (fixed)
– the key is turned in anticlockwise direction from the zero position.
This position is provided at the operation of the radio equipment on the tractor.
18
– Indicator lamp of accumulator charge
The lamps comes on when there is no charging current from the generator.
19
– The air pressure gauge in the first circuit of the pneumatic system with built-in alarm
signaling of the minimum limit value of 0.45 MPa (4.5 kgf/cm
2
)
The air pressure in the pneumatic system in the process of operation shall be equal to 0.65
–0.8
MPa (6.5
–8 kgf/cm
2
).
25
– Indicator lamp of oil overheating of the hydraulic system
The lamp comes on when the oil temperature in the hydraulic system reaches the critical value.
26
– Indicator lamp of oil level fall in the tank of hydraulic system for control over turns
and service equipment
The lamp comes on when the oil level falls below the critical value. Short-
term “flashing” of the
indicator lamp is allowed in case of travelling over road irregularities causing fluctuations of the
oil levelin the hydraulic tank.
33
– Oil temperature gauge in the engine with built-in alarm signaling of the maximum
limit temperature value
for
ЯМЗ-238НД5 engines – 100°С.
34
– Switch of the fan drive clutch
When the lower part of the key is pressed, the forced mode of clutch operation will get
activated.
When the upper part of the key is pressed, the automatic mode of clutch operation will get
activated.
The middle position of the key corresponds to the switched-off position of the fan clutch.
