KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
84
At a negative ambient temperature the duration of continuous operation of the starter shall
not exceed 20 seconds. Perform start-up after disengagement of the gearbox, wherefore
push the lever on the pump drive reducer all the way forward in the direction of tractor travel,
set the manual fuel feed lever to the middle position. After warming up connect the gearbox
to the engine, having preliminarily shut it off, set the manual fuel feed lever to the position
corresponding to the minimum engine crankshaft speed.
In case of unsuccessful start-up, pull out the engine shutdown handle and then retract it, af-
ter which repeat the start-up.
Fig. 22 Pump unit
1
– fluid pump impeller; 2 – drain valve; 3 – fluid pump;
4
– collar; 5 – fan impeller; 6 – fan housing; 7 – motor;
8
– coupling; 9 – fuel pump; 10 – reducing valve.
Fig. 21 Heating boiler
1
– fuel electrical heater; 2 - solenoid 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.
