BELARUS-1021/1021.3
Operating manual
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6.4 Determining and evaluating possibilities of unitizing BELARUS-
1021/1021.3 tractors with agricultural machines
Determining and evaluating possibilities of unitizing BELARUS-1021/1021.3 tractors with
agricultural machines is made in several stages:
First stage — Preparation and collection of baseline data
1. Study the tractor operating manual. Determine the basic characteristics of the tractor:
drawbar class, rated tractive force, engine power, allowable power of mechanical and hydraulic
takeoff, mounting dimensions/type (TC or HL; PTO shaft ends, hydraulic outputs, electric socket,
pneumatic head), relative position of the PTO shaft end to the centerline of the HL suspension axle
or the TC connecting finger; kitting-up, range of speeds and tracks, availability of required
working equipment and maximum allowable tractor weight, permissible axle and wheel tire loads,
full weight of towed trailer.
2. Study the machine operating manual. Determine the basic technical characteristics of the
machine: draught resistance, power of mechanical (PTI), electrical and hydraulic takeoff,
mounting dimensions/type (pole or arm eyes; connecting triangle; PTI shaft ends, hydraulic
outputs, electric plug, pneumatic head), relative position of the PTI shaft end to the center of the
connecting triangle suspension axle or the pole/arm eye, possibility to change the supplied PTI
shaft end type and direction of PTI shaft end rotation, range of operating speeds, full operating
weight with process load, availability of brakes, availability of a driveshaft (type, length,
availability and type of protective coupling). Consult when necessary the seller (manufacturer) of
the machine. Request, if necessary, missing data on the machine.
Second stage — Checking assemblability
Evaluate constructive linkage of the connected elements of the tractor (towing couplers,
mounted three-point devices; hydraulic, electric connections; pneumatic head; PTO shaft ends)
with the corresponding elements of the machine including correspondence of the wheel track and
size and the process requirements of the work performed, location of the PTO, PTRI and driveshaft
of the machine shaft, as well as possibility of installing a system of automated control of process
performance and installing a control panel in the cab from the machine package.
Check availability of necessary equipment for unitizing in the tractor package: required TC
type, pneumatic head, electric socket, required PTO shaft end type, wheel tires of correct size for
pairing, front or rear HL, reverse control post, spacers for wheel pairing, availability of hitch
hoses, availability of quick-release cutoff clutches. Purchase missing equipment for the tractor
separately. After checking availability and additional installation of the necessary working
equipment on the tractor, kit up and prepare the MTU in view of the recommendations of the
operational documentation for unitized tools.
When purchasing new vehicles to the tractor, always specify in the order the necessary
configuration with relevant working equipment ensuring possibility of unitizing with the
BELARUS-1021/1021.3 tractor.
For machines driven by the rear PTO shaft, order a driveshaft of the required length and
type, with the corresponding joint dimensions. Machines driven from a PTO can technically be
equipped with a reduction gear ensuring driveshaft rotation both clockwise and counterclockwise.
Therefore, when purchasing a machine, instruct the representative of the company to kit up the
machine with a reduction gear driven through a driveshaft with the direction of PTI rotation
counterclockwise when viewing the driveshaft fork end from the side of the machine drive.
