BELARUS-1021/1021.3
Operating manual
84
Third stage — Checking correspondence of vertical load on connecting device of tractor.
1. For mounted and semi-mounted machines.
Checking correspondence of the load-bearing capacity of the three-point hitch linkage of the tractor
to the load generated by the attached machine. Make sure that the hitch linkage can raise/lower the attached
machine taking into account the process material weight.
2. For semi-trailed and trailed machines (with the hitch point height unchanged
during work and transportation).
For machines unitized with a TC, the vertical load on the connecting device of the machine
must not exceed the allowable values for the TC.
Fourth stage — Checking static vertical loads on the tractor axles, including the
criterion of controllability, need for additional ballasting.
Determine by calculation or empirically the total weight of the tractor with the machine, the
load on the axles and the maximum permissible load on the tires, the weight of the needed ballast
and process load. The weight of the tractor in the MTA borne by the tractor axles must not exceed
the allowable values. In any case, the load on the front and rear axles must not exceed the total tire
capacity respectively the sum of capacities of the rear or front wheels.
Fifth stage — Checking capability of moving the tractor unitized with the machine,
including checking turn angles and maximum lift heights of the HL up to stop of the machine
elements against the tractor elements, sufficient length and areas of free space of the driveshaft at
turns and when transferring the machine to the transport position.
Sixth stage — Assessment of correspondence of power capabilities of the tractor and the
requirements of the machine (draught resistance, power consumption, including through the PTO).
It is possible to asses by calculation when the source data are available or on the basis of a
test report.
Seventh stage — Checking the possibility of work performance by the machine
unitized with the tractor.
1. Perform trial unitizing to perform process operations in accordance with the purpose of the
machine and in strict compliance with safety requirements.
2. Check fitting of the tractor into spaces between rows of the cultivated crops,
determining:
- correspondence of the track and tire section width;
- agrotechnical clearance;
- protective zones on the tires.
Eighth stage — Checking the total cross-country ability, the static stability on slopes,
the effectiveness of the brakes under local conditions:
1. Tractor’s capability to overcome ups and downs with the machine with the process
material;
2. Capability to move along a slope.
Estimate the clearance and controllability of the tractor in the unit. The tractor front wheels
during motion must not break away from the road surface. On the tractor front axle in any case of its
use, at least 20% of the load (the criterion of controllability Ku 0,2) of its own operating weight
must fall.
Ninth stage — Holding control shifts to determine performance indicators:
- time of labor input to make a MTU;
- average operating speed;
- performance per 1 hour of main (shift, operating time);
- volume of work performed for the monitoring time;
- fuel consumption per hour (specific).
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Страница 16: ...BELARUS 1021 1021 3 Operating manual 15 The transmission number Front driving axle number Cab serial number ...
Страница 107: ...BELARUS 1021 1021 3 Operating manual 106 Fig 6 9 2 Determining maximum allowable torque Power kW hp Speed rpm Torque Nm ...