BELARUS 1221.3

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BELARUS 1221.3

The tractor belongs to class 2.0. It is designed to perform a full range of agricultural work from preparing the soil for sowing to harvesting and transport operations. It can be used in forestry and public utilities, construction, and industry.
The tractor is adapted for work in various soil and climate zones and on all types of soil, including soils with low bearing capacity.
Having a wide range of various devices and units of additional equipment, as well as towing and coupling means, the tractor is capable of being aggregated with a variety of agricultural machines and equipment, fully using its functional capabilities in aggregate with wide-grip and combined machines of both class 2 and some class 3 machines with the readjustment of the coupling elements of the front and rear linkage mechanisms.
The tractor has a traditionally simple design, high reliability and productivity, is economical in the consumption of fuel and lubricants, operating materials, spare parts, is adapted to various types of monitoring and diagnostics of the technical condition, and can be equipped to operate in operational and long-term reverse modes.

Equipment: Air conditioner

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1. A powerful six-cylinder turbocharged engine with an intercooler has reduced emissions of harmful substances into the atmosphere while simultaneously increasing power (+6 hp), torque (+68 Nm) and the engine torque reserve factor (from 15 to 25%), which in turn has significantly increased the traction capabilities of the tractor and the ease of use under load;

2. Three-range gearbox with 16 forward gears and 8 reverse gears, which enables the optimal selection of transmission ratio for each agricultural technological operation;

3. Central drive of the front drive axle, which made it possible to simplify the design while increasing its overall reliability (the intermediate support was eliminated).

Engine
Engine type: Diesel turbocharged
Power, kW (hp): 100 (136)
Environmental standard: Stage II
Engine model: D-260.2S2
Nominal speed, rpm: 2100
Number of cylinders, pcs.: 6
Working volume, l.: 7.120
Maximum torque, Nm: 568
Specific fuel consumption, g/kWh: 226
Fuel tank capacity, l.: 270 (140+130)

Chassis system
Type: Wheeled
Wheel formula: 4K4

Transmission
Clutch: Dry double-disc
Gearbox: Synchronized, range
Number of gears: forward/reverse: 16/8
Travel speed km/h: forward/backward: 2.1 – 33.8/ 4.0 – 15.8
Rear PTO independent I, rpm: 540
Rear PTO independent II, rpm: 1000
Rear PTO synchronous I, rpm: 3.95
Differential lock: Hydraulic
Front drive axle type: Beam

Dimensions, weight and equipment
Length/Width/Height, mm.: 4500/2300/2850
Wheelbase, mm: 2760
Track on front wheels, mm: 1540-2090
Track on rear wheels, mm: 1530-2150
Ground clearance, mm: 465
Operating weight, kg: 5570
Front tire size: 14.9R24
Rear tire size: 18.4R38

Hydraulic suspension system
Type of hydraulic balance system: Hydraulic lift providing force, position and mixed regulation
Load capacity of the ZNU on the suspension axis, kg: 4300
Maximum pressure, MPa: 20
Pump capacity, l/min: 51
Hydraulic system tank capacity, l: 25