KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
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Perform towing of the tractor only with a rigid coupler according to the requirements of “Road
traffic regulations”. In doing so, the towing speed shall not exceed 15 km/h.
For towing the tractor with faulty engine, turn the transmission disengagement lever on the
pump drive reducer (PDR) all the way towards the engine. Towing switchover lever 11
(Fig.18) shall be lifted upwards and the mode and gear selected in GB of the tractor being
towed shall conform to the tow car speed during towing.
To jack the tractor up (Fig.34), set it on even horizontal ground, insert pads under the wheels
after shutting off the engine, pull up the parking brake, set the mode change lever into the
position N, gear change lever - into position ACTIVATION OF SYNCHRONISER BRAKES,
levers of the hydraulic distributor of the mounted equipment hydraulic system - into position
NEUTRAL.
In order to avoid jack-knifing of tractor semi-frames, install split bushings on the swing hy-
draulic cylinder stems or locking shackle on the frame, preventing the movement of stems.
Use only serviceable jack. It is prohibited to stay under the tractor lifted on the jack. When
jacking the tractor, use reliable jacks with the carrying capacity of at least 12,000 kgf; follow
the jacking diagram using “DK” marks on the tractor.
Fig. 34 Tractor jacking diagram
1
– under casing of rear axle semi-frame; 2 – under casing of front axle semi-frame.
6.9 GEARBOX PRESSURE CONTROL AND ADJUSTMENT
In the course of tractor operation, the GB pump performance decreases.
In order to extend the GB repair interval, periodically check and adjust the pressure in GB.
Pressure monitoring is carried out by means of mechanical pressure gauge with the upper
measurement limit of 1.6 MPa (16 kgf/cm
2
). Accuracy class - at least 1.5. Measurement point
- see Fig.18.
