KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
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– open the boot and undo the cap of the tank filler port (the tank is located on the right-
hand side-member of the frame in the front part of the engine);
– insert a funnel into the tank filler port and refill fuel into the tank (tank capacity is
7 litres). For 30...40 minutes of boiler operation the fuel consumption equals to 3...4 l);
– take off the funnel and screw the tank filler port cap.
In case when fuel drops get onto the outer surface of the tank, wipe the tank surface with a dry
oil cloth.
4.12.2.2 Open the valve for feeding fuel into the heater and pump out the heater fuel system
with a pump for manual engine fuel pumping-out.
Activation of the heater
4.12.2.3 Blow down the boiler gas duct
– run the pump set for 15–20 seconds by setting motor
switch 1 (Fig. 16) into the “Operation” position.
4.12.2.4 Press electrical heater button 3 (Fig. 16) and hold it in the ON state depending upon
the ambient temperature according to Table 2.
Table 2
Ambient temperature
to minus
20°С
to minus
30°С
to minus
40°С
to minus
60°С
Electrical heater running
time, s
20
30
60
90
4.12.2.5 Upon expiry the heating time set motor switch 1 and electromagnetic valve switch 2
into the “Operation” position. At the same time turn flag 5 of heater button in the clockwise
direction and gold it (no more than 30 s) until a typical hum appears in the boiler indicating the
ignition of fuel in the burner.
4.12.2.6 Unless upon expiry 20
–30 seconds the heater begins running, set the electromagnetic
valve switch into the “Blowdown” position and release the heater button. Upon expiry of 90–150
seconds switch off the motor. Then repeat the start-up. Unless as a result of two attempts the
heater begins steadily running, it is necessary to determine and eliminate the fault, after which
perform the heater start-up.
Operation and shutdown of the heater
General construction and layout of the heater of
ПЖД-30 type is shown in Fig. 17...19.
4.12.2.7 The duration of heater operation for heating the engine to the state ensuring the engine
start-up depends upon the ambient temperature.
4.12.2.8 The heater should be switched off when the temperature in the engine cooling system
reaches the temperature over 90°С.
