KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
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6.6.3 Procedure of operation with vehicles
CAUTION!
Road-train with the following sequence and composition: tractor, semi-
trailer (1PTS-9B or OZTP-8573) and trailer (ZPTS-12B or OZTP-8572) is designed for
carriage of cargoes over any types of roads. With unfavorable road conditions, the
tractor hooks up only with one semi-trailer or trailer.
When using the tractor with other vehicles, fulfill the following additional requirements:
a) the load on tractor wheels shall not exceed the values indicated in Table 3;
b) all machines to be used for transportation of cargoes shall be equipped with
pneumatic or pneumatic-hydraulic brakes securing traffic safety;
c) braking system of the trailing vehicle shall provide for natural deceleration of trail-
ers with cargo at an emergency braking of at least 5.5 m/s
2
.
The time from the moment of pressure drop at the connecting head level to 90% of the initial
value until the moment when the pressure in the trailing vehicle actuator being in the least
favorable conditions reaches 75% of the steady-state value with the control member being
fully operated shall not exceed 0.4s;
d) total weight of the cargo being transported with the trailer shall not exceed 36 t.
When the tractor travels with any types of vehicles, use the fuel feed pedal and set the man-
ual feed handle at the same time into the position ensuring tractor taking off with the vehicle,
with allowance for the cargo weight.
6.6.4 Operation with power take-off (PTO)
Power take-off (PTO) is designed to transfer the engine power to operating parts of the ma-
chines to be hooked up with the tractor.
PTO consists of coupling with valve, single-speed reducer with oil pump, front and rear car-
dan shafts.
Fulfill the following requirements in the course of operation:
а) with the coupling disengaged, rotation of the rear cardan shaft is not allowed;
b) engage the coupling on load with the steady-state pressure in the gearbox hydrau-
lic system of at least 10 kgf/cm
2
.
