KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
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Put the tractor on a horizontal ground. In order to check oil level, undo the plug from the ref-
erence port. Oil level in the main gear case shall coincide with the lower edge of the refer-
ence port. Fill oil through the reference port by means of a funnel with hose and drain oil
through the port in the bottom part of the case. Unscrew the breather and close the port with
a plug before oil filling. Wash the breather in diesel fuel, blow it down with compressed air
and mount it back in place.
Level check, filling and change of oil in final gears
In order to check the level and fill oil in final gears, it is necessary to set one of the two trian-
gular marks 1 (Fig.43) on the pinion carrier to the extreme lower position and undo plug 2.
Fill oil by means of funnel. Drain oil through the drain port (reference port) when it is located
in the bottom position, using the attachment for oil drainage.
Change oil in the following sequence:
– set one of the pinion carriers to the oil drainage position;
– drain oil from the final gear;
– set the second pinion carrier to the oil drainage position;
– drain oil from the second final gear;
– fill fresh oil into the first final gear and screw in the plug.
Change oil in the remaining final gears in a similar manner.
Fig.43 Final gear
1 - triangular mark; 2 - reference port plugs
I
– pinion carrier position for oil level check and refilling; II – pinion carrier position for oil drainage
Check and adjustment of the travel of brake chamber stems in service brakes
a) Check air pressure in the pneumatic system; if necessary, fill the system to the
pressure of 6.5
– 8 kgf/cm
2
.
