KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
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4.12.2.9 To shut down the heater it is necessary to set the electromagnetic valve switch into the
“Blowdown” position and 90–150 seconds later switch off the motor. Close the heater fuel valve.
Fig. 16 Heater panel board
1
– motor switch; 2 – electromagnetic valve
switch; 3
– fuel electrical heater button;
4
– power circuit automatic shutdown button;
5
– spark plug switch.
After heating the engine perform start-up the same as under positive temperature with the
account of features specified below.
At a negative ambient temperature the duration of continuous operation of the starter shall not
exceed 20 seconds. Perform start-up having preliminarily disengaged the gearbox, wherefore
set the lever on the pump drive reducer forward to the stop in the direction of travel of the
tractor, set the manual fuel feed lever in the middle position.After warming up, connect the
motor with the gearbox having preliminarily shut off the motor, set the manual fuel feed lever in
the position corresponding to the minimum rotational speed of the engine crankshaft.
In case of unsuccessful start-up, pull out the engine shutdown handle and then retract it, after
which repeat the start-up.
Fig. 17 Heating boiler
1
– fuel electrical heater; 2 –
electromagnetic fuel valve;
3, 16
– fluid outlets; 4 – spark plug;
5
– fuel inlet to the heater; 6 – gas outlet;
7
– fuel filter; 8 – boiler casing;
9, 10
– gas cavities; 11 – nozzle;
12
– burner; 13 – air swirler;
14
– air inlet; 15 – fuel heater.
Space heater
Plug
Blowdown
Operation
С-С
