Belarus 922.6 User manual

BELARUS
922.6
922.6-0000010 OM
OPERATOR’S MANUAL
2016

The operator's manual was composed by an engineer of the first Department of
Constructive and Experimental Works (DCEW-1), Y.A. Soroka, with participation of key
specialists of DCEW-1 of OJSC “Minsk Tractor Works”
Publication responsible person – Y.M. Korotky, head of engineering office of design docu-
mentation of the DCEW-1.
Executive editor – Y.N.Kozlovsky, head of DCEW-1.
Editor-in-chief – N.I. Zezetko, chief designer of tractor production of OJSC “MTW”.
Operator's manual contains brief description and specifications of tractors Belarus 922.6
produced by Minsk Tractor Works. The main tractors operating rules are set forth, the in-
formation about their adjustments and maintenance is provided.
Operator's manual is meant for tractor study, operation rules and maintenance of tractors
“BELARUS-922.6”.
In view of Minsk Tractor Works policy directed to constant upgrading of produced goods, the
construction of some units and parts of Belarus tractor may undergo changes which are not
reflected in present edition. The detailed information may be obtained from “BELARUS”
dealer.
© OJSC ”Minsk Tractor Works”, 2016
All rights reserved. No part of this book may be reproduced in any form without written per-
mission of OJSC “MTW”.

3
CONTENTS
1 TRACTOR DESCRIPTION AND OPERATION ………………………………………. 11
1.1 Tractor assignment …………………………………………………………………..... 11
1.2 Technical specifications …………………………………………………………......... 12
1.3 Tractor composition ………………………………………………………………….… 15
1.4 Vibration level at the operator's working place of the tractor “BELARUS-922.6»…....... 16
1.5 Noise level at the operator's working place of the tractor “BELARUS-922.6»…... 17
1.6 Tractor and its component marking ……………………….……............................... 17
2 CONTROLS AND INSTRUMENTS ………………………………………………......... 19
2.1 Layout of controls and instruments of the tractor ……………………….................. 19
2.2 Switches of the instrument board …………………………………............................ 20
2.3 Upper shield unit of button switches …………………………….………………........ 23
2.4 Cab heater and fan control …………………………………...................................... 24
2.5 Conditioner control ………………………………………………………….................. 25
2.5.1 Conditioner control in the conditioning mode …………………............................. 25
2.5.2 Conditioner control in the heating mode ……………………………...................... 25
2.5.3 Cab ventilation ………………………………………………………………….......... 26
2.6 Instrument board ………………………………………………………………….......... 27
2.7 Pilot lamps unit ………………………………………………………………................ 29
2.7.1 General information ……………………………………………………………….… 29
2.7.2 Functioning algorithm of pilot lamp to indicate operation of heating plugs ….… 30
2.8 Integrated indicator and integrated indicator control panel …………..…………..... 31
2.8.1 General information ……………………………………………………………….… 31
2.8.2 Assignment and operation principle of integrated indicator gauges …..................... 32
2.8.3 Pilot lamps of the integrated indicator …………………………............................. 35
2.8.4 Description of testing the integrated indicator performance …………………...... 36
2.8.5 The order of the integrated indicator programming..………………...................... 36
2.9 Information display and engine control system panel ……..................................... 39
2.9.1 General information ……………………………………………………………….… 39
2.9.2 Adjustment of brightness and sharpness of the information display …............... 39
2.9.3 Call-up of changeable images and parameters on the screen of the information
display.……………………………......................…………………………………...……… 39
2.9.4 Engine control system panel ………………………………………........................... 42
2.10 Steering …………………………………………………………………...................... 43
2.10.1 General information ………………………………………………………..………. 43
2.10.2 Steering wheel adjustments ……………………………………………...……….. 43
2.11 Parking brake control ……………………………………………….......................... 43
2.12 Handle for fuel supply manual control …………………………...……................... 43
2.13 Tractor pedals ……………………………………..…………………………....…….. 43
2.14 Switching of ranges and gears on GB …………………………………………....... 44
2.14.1 General information ……………………………….…………………………..…… 44
2.14.2 Gears shifting in transmission with reduction gear …….................................... 44
2.14.3 Gears shifting in transmission with reverse gear ……………............................ 46
2.15 Control panel for rear axle DL and RPTO ………………..……...…........................ 47
2.16 Rear PTO control ……………………………………............................................... 48
2.16.1 Rear PTO switch handle from ground-speed to continuous drive.….......................... 48
2.16.2 Rear PTO engagement ……………………………….…...................................... 48
2.16.3 Rear PTO double-speed continuous drive switch..…......................................... 48

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2.16.4 Tractor operation without using rear PTO ………………………….................… 49
2.17 FDA drive control ………………………….…........................................................ 49
2.18 Control of rear lift linkage (RLL)……………………………………......................... 50
2.18.1 Control elements of RLL with hydraulic lift.…………………………...............…. 50
2.18.2 General information on control of RLL with hydraulic lift ….….......................... 50
2.19 HLL pump control ………………………………………………….………................ 51
2.20 HLL valve group section control (remote cylinders)……........................................ 52
2.21 Electric cutout fuses …………………………………………................................... 53
2.21.1 General information …………………………………………………..……………. 53
2.21.2 Switching unit and fuses for electrical equipment …...…..…............................. 53
2.21.3 Fuses for electronic systems of DL and PTO ………………............................. 58
2.21.4 Fuses for engine electronic control system.…………........................................ 59
2.22 Cab locks and handles ………………………………………………….………...…. 61
2.22.1 Cab door locks ……………………………….…………………………….............. 61
2.22.2 Side window opening.…………………………….……………..……………......... 61
2.22.3 Rear screen opening …………………………………………………………........ 62
2.22.4 Cab hatch opening ………………………………………………..………….......... 62
2.22.5 Cab emergency exits ………………………………………………………............ 62
2.23 Seat and its adjustments …………………………………………………………..... 63
2.23.1 General information …………………………………………………………….…. 63
2.23.2 Adjustments of seat.....................………………...……………….……………..... 63
2.24 Control of the pneumatic system compressor …………………………………...... 64
2.25 Connector elements of the electrical equipment ………………………….............. 65
2.25.1 Socket to connect coupled agricultural electrical equipment ..……………...… 65
2.25.2 Connection of coupled machines electrical equipment through socket unit...... 65
2.25.3 Connection of additional electrical equipment of coupled machines ……….... 66
2.26 SCR system operation …………………………………………………………......... 66
2.26.1 Tank for SCR system liquid ………………………………………………….…… 66
2.26.2 Indication of SCR system operation ……………………………………………... 67
3 INTENDED USE OF TRACTOR ……………………………....................................... 70
3.1 Safety measures while preparing tractor for operation …………………....………. 70
3.2 Tractor use …………………………………………………………….......................... 71
3.2.1 Boarding the tractor ……………………………………………………………....…. 71
3.2.2 Engine start and preparation for it ……………………………..…...…………........ 71
3.2.3 Start of tractor movement, GB shifting ………………..……...…….….................. 73
3.2.4 Tractor stop …………………………………………………….…..………............... 74
3.2.5 Engine stop …………………………………………………….…..………............... 75
3.2.6 Leaving the tractor …………………………..…………………………...….....……. 75
3.2.7 PTO use …………………………………………………..……..…..…..................... 75
3.2.8 Selection of optimal inner pressure in tires depending on operational conditions
and load on tractor axles ………………………………….……..…................................. 77
3.2.8.1 Selection of optimal inner pressure in tires depending on operational condi-
tions and load on tractor axles …………………………………..……..…....................... 77
3.2.8.2 Tire inflation …………………………….…………………………………........….. 79
3.2.9 Rear wheel track formation ………………………………..……….……................. 80
3.2.9.1 Rear wheel track formation, installed on terminal hubs....................................... 80
3.2.9.2 Track formation of rear wheels, mounted on cone-shaped hubs....................... 81

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3.2.10 Rear wheel twinning …………………...……….…..…………………..….........… 83
3.2.11 Front wheel track formation …………….………..………..……..….................... 83
3.3 Safety measures while tractor operation …………………..………………….…...... 85
3.3.1 General safety measures while tractor operation ………………..…………....….. 85
3.3.2 Fire safety measures ………………..……………………….….............................. 87
3.4 Tractor final assembly and run-in …………..………………………………….….…. 89
3.4.1 Tractor final assembly …………..…………………………………………….…….. 89
3.4.2 Technical maintenance before tractor run-in ………..……………..…................. 89
3.4.3 Tractor run-in …………………………..…………………………………….…......... 89
3.4.4 Technical maintenance during tractor run-in ……………………......................... 90
3.4.5 Technical maintenance after tractor run-in ……..…………………...................... 90
3.5 Emergency actions …………………………………………...…................................ 91
4 COUPLING OF IMPLEMENTS ……………..…………………………………...….….. 92
4.1 General information …………………………..…………………………………..….... 92
4.2 Types of implements coupled with tractor “BELARUS-922.6»…………….……… 93
4.3 Lift linkage ……………………..……………………………….…............................... 94
4.3.1 General information ………………………………………………………………..... 94
4.3.2 Three-point rear lift linkage ………………………………….................................. 94
4.3.3 RLL components adjustment rules …………………………………………............ 97
4.3.3.1 Buckles …………………………………………………………………………....... 97
4.3.3.1.1 General information …………………………………………………………....…. 97
4.3.3.1.2 Telescopic buckles ………………………………………………………............ 97
4.3.3.1.3 Outer turnbuckles ……………………………………………………................. 99
4.3.3.2 Lifting rod …………………………………………………………………….…...... 100
4.3.3.3 Upper link ……………………………………………………………………......…. 101
4.3.3.4 Lower links …………………………………………………………………………. 101
4.3.3.4.1 General information ……………………………………………………….……. 101
4.3.3.4.2 Telescopic lower links and twin crossbar ……………………......................... 101
4.3.4 Attachment of implements to a tractor …………………………………………….. 102
4.4 Drawbar hitches ……………………………………………..…………….................... 103
4.4.1 General information …………...……………….……………………………..…..…. 103
4.4.2 Drawbar hitch non-rotatable towing yoke (DH-2V) ….......................................... 104
4.4.3 Drawbar hitch rotatable towing yoke (DH-ЗV)..........…........................................ 105
4.4.4 Drawbar hitch “Python” (DH-2R).........................................…............................. 106
4.4.5 Towing bar (DH-1М-01)......……….……….......................................................... 107
4.4.6 Drawbar hitch crossbar (DH -1)………………..………….…................................. 108
4.4.7 Drawbar hitch twin crossbar (DH-1ZH-01)…………..…....................................... 109
4.4.8 Determining max. allowable vertical load on tractor DH depending on rear tires
standard size, type of applicable draw hitch and tractor travel speed....……………....
110
4.5. Usage patterns of tractor hydraulic system for drive of operating parts and other
elements of hydraulically-powered coupled machines and implements …………...… 111
4.6 Front ballast weights installation …………………………………………………....... 112
4.7 Trailer brake drive ………………………………………………………..…................. 113
4.7.1 General information …………………………………………………………….…… 113
4.7.2 Double-line pneumatic drive of trailer brakes ………………………….…............. 113
4.8 Determination of PTO shaft and cardan shaft applicability …...……….................. 114

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4.9 Peculiarities of PTO shaft and cardan shaft applicability …….………..………..... 114
4.10 Ways of changing drawbar features and passing ability of the tractor …........... 118
4.11 Features of tractor application in special conditions ………….…..…..…............ 119
4.11.1 Tractor operation in areas with rugged topography. Possibility of tractor ap-
plication for haylage preparation ……..…………………….…….................................. 119
4.11.2 Application of substances for chemical treatment …………….…..………….. 119
4.11.3 Operation in a forest …………………………………….…..………………......... 119
4.12 Determination of total weight, loads on front and rear axles, tires holding ca-
pacity and the required minimum ballast ………..…................................................... 120
4.13 Possibility of front loader installation …………….………………......................... 122
4.13.1 General information ………………………..…………………………………….. 122
4.13.2 Safety measures while tractor “BELARUS-922.6” operation with the loader
installed ……………………..………………………………………................................. 124
4.13.3 Information on the tractor mounting holes ………………..……………............. 126
5 MAINTENANCE …………………………..………………………................................ 128
5.1 General instructions ………………..……………………………………………….... 128
5.2 Providing access to the components for maintenance services................................. 130
5.3 Maintenance procedure ……………………..……….............................................. 131
5.4 Scheduled maintenance service operations ……………..………………............... 134
5.4.1 Maintenance service on a shift basis (SBMS) in every 8 – 10 hours of opera-
tion or per shift ………………………………..…………………………………............... 134
5.4.2 Maintenance service in every 125 hours of operation (MS-1)………….…........ 142
5.4.3 Maintenance services in every 250 hours of operation (2MS-1), in every 500 hours of
operation (MS-2), in every 1000 hours of operation (MS-3), in every 2000 hours of operation
(special maintenance) and maintenance service that does not coincide with intervals of
MS-1, 2MS-1, MS-2, MS-3 and special MS….............................................................................. 148
5.4.3.1 General instructions ………….………………………………….………………. 148
5.4.3.2 Operation 32. Check / adjustment of clearances in steering joints...................... 148
5.4.3.3 Operation 33. Check / adjustment of wheel toe-in ……………….................... 149
5.4.3.4 Operation 41. Check / adjustment of service brake control …............................. 150
5.4.3.4.1 Check/adjustment of dry friction service brake control …............................... 150
5.4.3.4.2 Check/adjustment of service brakes control, operating in oil sump …….... 152
5.4.3.5 Operation 42. Check / adjustment of parking brake control …............................. 154
5.4.4 General maintenance services ……………………………..……………….......... 155
5.4.4.1 General instructions ………………..…………………………………………..... 155
5.4.4.2 Operation 71. Adjustment of oil pressure in the engine lubrication system........ 155
5.4.4.3 Operation 72. Maintenance of engine air cleaner……………......................... 156
5.5 Seasonal maintenance services ……………………..………………………........... 157
5.6 Safety measures while maintenance service and repair operations .…………… 158
5.6.1 General safety requirements ……………………..………………………….......... 158
5.6.2 Safety precautions for exclusion of hazardous situations related to accumula-
tor batteries and a fuel tank ………………..………..................................................... 158
5.6.3 Guidelines for safe use of leveling jacks and statement of proper places for
their installation …………….…………………………………………………………....... 158
5.7 Instruments, work tools and measuring devices while maintenance services and
repair ……………………………………………………………………………………...... 160
5.8 Filling and lubrication of the tractor with fuel and lubrication materials …….…... 161
6. POSSIBLE FAILURES AND INSTRUCTIONS FOR THEIR TROUBLESHOOTING... 167
6.1 Possible clutch failures and instructions for their troubleshooting …..……........... 167

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6.2 Possible failures in gearbox and instructions for their troubleshooting …............... 169
6.3 Possible failures in the electronic control system for rear axle differential lock,
rear power take off shaft and instructions for their troubleshooting ………………..... 170
6.4 Possible failures in rear axle and instructions for their troubleshooting …........... 171
6.5 Possible failures in rear power take-off shaft and instructions for their trouble-
shooting …………………………………………………………………………................. 171
6.6 Possible failures of brakes and instructions for their troubleshooting …………... 172
6.7 Possible failures in the pneumatic system and instructions for their troubleshooting ... 174
6.8 Possible failures of FDA and instructions for their troubleshooting …………....... 176
6.9 Possible failures of the hydrostatic steering control and instructions for their
troubleshooting ………………………………………………………………..................... 178
6.10 Possible failures of the hydraulic lift linkage and guidelines for troubleshooting … 181
6.11 Possible failures in the electrical equipment and instructions.............................................. 183
6.12 Possible failures of air-conditioning and cab heating systems and instructions
for troubleshooting ….................................................................................................. 185
6.13 Possible engine failures and instructions on their troubleshooting ………......... 186
7. TRACTOR STORAGE ……………………………………………………………….... 187
7.1 General instructions …………………..……………………………………………… 187
7.2 Requirements for inter-shift storage of machines ……………………………........ 187
7.3 Requirements for short-term tractors storage …………………………….............. 187
7.4 Requirements for outdoors long-term storage …….............................................. 188
7.5 Preservation …………………………………………………………………………... 189
7.6 Depreservation and represervation ……………………………..………………...... 189
7.7 Putting tractor into operation after long-term storage …………............................ 190
7.8 Safety requirements for preservation ………………..……………………............... 190
8. TRACTOR TRANSPORTATION AND TOWING……………………........................ 190
Service bulletins ………………………………………………………….......................... 192
ANNEX А(normative) – Schematic circuit diagram of BELARUS-922.6 tractor en-
gine electronic control system.....................................................................................
193
ANNEX B (normative) – Schematic circuit diagram of BELARUS-922.6 rear axle DL
and rear PTO electronic control system......................................................................
194
ANNEX C (normative) – Schematic circuit diagram of BELARUS-921.4/921.6/
922.5/922.6/923.6/923.6 electrical equipment............................................................
195

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Introduction
The present manual is designed for studying the structure, operation rules and
maintenance of tractors «BELARUS-922.6».
Scrutinize this manual and operator’s manual of the engine 245S4-0000100 OM, at-
tached to your tractor. It will help you to study the rules of correct operation and mainte-
nance.
Failure to follow these instructions can lead to operator's injury or a tractor break-
down, or it can cause injury to other persons.
Tractor operation, its maintenance and repair shall be carried out only by employees,
familiar with all of its parameters and characteristics and informed about necessary safety
requirements to prevent casualties.
Due to constant tractor development, some changes which are not specified in the
present manual can be introduced in the structure of certain units and parts.
Any arbitrary changes made by a consumer, release the manufacturer from respon-
sibility for possible further injuries to the operator and a tractor breakdown. In addition, shall
the consumer introduce any changes in the assembly units within the warranty period, the
tractor warranty will be immediately terminated.
Adopted abbreviations and conventional notations:
AB – accumulator battery;
DL – differential lock;
RADL – rear axle differential lock;
PLU – pilot lamps unit;
FB – fuse block;
FC – fast coupling;
ECU – engine control unit;
PTO – power takeoff shaft;
PRS – power reception shaft;
HSC – hydrostatic steering control;
HLL – hydraulic lift linkage;
HS – hydraulic system;
FFVS – frequency fuel volume sensor;
STM – shift-time maintenance;
RPTO – rear power take-off shaft;
SPTA – spare parts, tools and accessories;
RA – rear axle;
RLL – rear lift linkage;
II – integrated indicator;
GB – gearbox;
EF – efficiency factor;
HPC – heating plugs controller;
MTU – machine and tractor unit;
CC – coupling clutch;
LL – lift linkage;
CL – coolant;
IAC – inlet air cooler;
FDA – front driving axle;
FLL – front lift linkage;
CM – control module;
IICP – integrated indicator control module;
HPH – high pressure hoses;
HP – heating plugs;
SM – seasonal maintenance;
MS – maintenance service;
MS1 – maintenance service No1;
MS2 – maintenance service No2;
MS3 – maintenance service No3;
DH – drawbar hitch;
ECS – electronic control system;
EECS – engine electronic control system;
EE – electrical equipment.

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The manufacturer uses standard international symbols regarding application of in-
struments and control units.
Given below are the symbols with indication of their meanings.
see the manual;
control manipulations;
brake;
fast;
handbrake;
slowly;
audible beep;
forward;
alarm signaling;
reverse;
fuel; accumulator charging;
coolant;
cab dome light;
heating plugs; parking lights;
engine speed; tractor turn indicator;
oil pressure in the engine;
tractor trailer turn indicator;
temperature of engine coolant;
upper beam;
low beam;
off / stop; working lights;
on / start;
differential lock;
gradual adjustment;
PTO engaged;

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front screen wiper; front driving axle drive;
rear screen wiper and washer; fan;
brake fluid level in main cylin-
der tanks;
air filter clogged;
oil pressure in HSC engine start;
beacon — road-train
oil pressure in gearbox — external cylinder – retracting
braking of gearbox — external cylinder – protracting
air pressure in pneumatic sys-
tem
— external cylinder – floating
— swivel lever – up engine stop
— swivel lever – down lift linkage control system
— instruments lightening — instruments power supply
— power supply +12V — AB disconnection lock
— starter — starter lock
— front working headlights on
handrails and roof

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1 TRACTOR DESCRIPTION AND OPERATION
1.1 Tractor assignment
Tractor “BELARUS-922.6” is intended for performance of various general–purpose
agricultural operations with mounted, semi-mounted and trailed machines and implements
as well as for loading-unloading and transportation work.
Tractor “BELARUS-922.6” is a general-purpose wheeled tractor of traction class 1.4
with the wheel arrangement 4X4.
Basic physical configuration of tractor “BELARUS-922.6” is shown in Figure 1.1.1.
Figure 1 1.1 – Basic configuration of tractor “BELARUS-922.6»

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1.2 Technical specifications
Main parameters and specifications of tractor BELARUS-922.6» are given in table
1.1.1.
Table 1.1.1
Parameter
(specification) designation
Parameter value for tractor
“BELARUS-922.6”
1 Traction class according to GOST 27021 1,4
2 Rated traction force, kN 14
3 Engine
1)
а) model D-245.5S4
b) engine type
2)
turbocharged with intercooling of inlet
air
c) number and arrangement of cylinders
2)
four, in-line, vertical
d) cylinder displacement, l
2)
4,75
e) engine power, kW:
1) rated
2)
70
2) operating 66,72,0
f) crankshaft rated speed, rpm
2)
2200
g) specific fuel consumption at operating
power, g/(kW·h)
240,05
h) rated factor of torque backup, at least, %
2)
45
i) max torque, N·m
2)
464,0
4 Number of gears
3)
:
а) for forward travel 14
b) for reverse travel 4
5 Tractor travel speed (design) at crankshaft
rated speed, km/h3):
a) for forward motion:
1) least 2,5
2) highest 35,2
b) for backward motion:
1) least 5,2
2) highest 11,6
6 Tractor weight, kg:
a) tare weight 4440±100
b) operating with ballast
c) operating without ballast
d)max operating
e) ex-works 4)
5240±100
4635±100
7000
4540±100
7 Distribution of operating weight on axles,
kg:
а) on front 2320±50
5
b) on rear 2920±50
5)

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Table 1.1.1 continued
Parameter
(specification) designation
Parameter value for tractor
“BELARUS-922.6”
8 Permissible load on axles, kN:
а) on front 37
b) on rear 53
9 Max weight of the trailer, kg
а) without brakes 2100
b) with independent brake 3500
c) with overrunning brake 3500
d) equipped with a brake system (trailer
brakes are interconnected with tractor
brakes)
18000
10 Road clearance, mm (on tires of basic
configuration 360/70R24), mm, at least: 520
11 Track dimensions (on tires of basic con-
figuration), mm:
а) for front wheels with short FDA beam 1415±20, 1515±20, 1585±20, 1685±20,
1735±20, 1835±20, 1900±20, 2000±20
b) for front wheels with long FDA beam 1535±20, 1635±20, 1705±20, 1805±20,
1855±20, 1955±20, 2020±20, 2120 ±20
c) for rear wheels from 1500 to 1600 and from 1800 to 2100
12 Least radius of turning circle (with brak-
ing), m 4,5
13 Tractor base, mm 2440±20
14 Maximum fordable depth, m 0,85
15 Service life, years 12
16 Overall dimensions, mm:
a) length with loads and rear lift linkage in
transport position 444050
b) length without loads and rear lift linkage
in transport position 406050
c) width along the ends of rear wheel semi-
axles
197020
d) cab height 256030
17 Tires (basic configuration):
а) front wheels 360/70R24
b) rear wheels 18.4R34
18 Electrical equipment according to GOST
3940:
а) rated supply voltage in on-board power
system, V
12
b) rated ignition voltage, V 12
19 Hydraulic system:
а) pump displacement under crankshaft
rated speed, l/min, not less than
46
b) safety valve operation pressure, MPa
20-2
c) conventional volume factor, not less
than
0,65

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Table 1.2.1 finished
Parameter
(specification) designation
Parameter value for tractor
“BELARUS-922.6“
20 Working equipment:
а) rear power take-off shaft:
1) rated speed of PTO shaft end with
the ground-speed drive on, rpm:
- position I (under the engine crankshaft
speed of 2080 rpm) 540
- position II (under the engine crankshaft
speed of 2200 rpm)
955
2) rated speed of PTO shaft end with
the continuous drive on, rev/meter of
travel:
3,36
(on rear tires of standard configuration
(18.4R34))
b) rear lift linkage:
1) loading capacity of rear lift linkage on
suspension axis
4200
3) time for raising rear lift linkage from
lowermost position into uppermost position
with test load on suspension axis, sec., not
more than
3
c) drawbar hitch: In Section 4 “Coupling of implements”
_____________________________________________________________________
________________________________________
1) Engine parameters, not specified in the table 1.1.1, shall meet 245 S4 – 0000100
OM document.
2) For referential use.
3) For the tractor basic configuration with a reduction gear. The parameter values
for the configuration with a reverse gear are given in subsection 2.14 GB ranges and
gears switching.
4) To be specified depending on the configuration.
5) With ballast weights mounted.

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1.3 Tractor composition
Tractor framework is semi-frame.
The undercarriage of the tractor includes driving front and rear wheels with low-
pressure pneumatic tires. Front wheels are steering. Rear wheels can be twinned by means
of a spacer.
The tractor is equipped with a 4-stroke piston six-cylinder inner combustion engine
with in-line vertical arrangement of cylinders, with direct injection of diesel fuel and com-
pression ignition, corresponding to environmental requirements of Stage 4.
The system of engine lubrication is combined, some parts are lubricated under pres-
sure, some – by spattering. The lubrication system consists of an oil sump, oil pump, liquid-
oil heat exchanger, centrifugal oil filter and oil filter with paper filtering element.
The engine fuel supply system consists of the following parts:
- accumulator system of fuel supply Common RAIL, including a high-pressure fuel
pump, injectors, a fuel accumulator under high pressure, sensors of the engine working en-
vironment condition (pressure and temperature of fuel and air), electromagnetic actuating
mechanisms (fuel governor, electromagnetic injection valves), electronic unit of control and
communication check circuits, low-pressure pipelines, high-pressure pipelines;
- fuel fine filters;
- fuel coarse filters.
The system of engine start-up is an electric starter. A means of start-up facilitation
under low environmental temperatures are heating plugs.
The system of air delivery consists of a turbocharger, an air pipeline and a system of
inlet air cooling.
The turbocharger is executed as follows: a radial centripetal turbine and a centrifugal
single-stage compressor with a cantilever arrangement of wheels in relation to supports.
The system of air purification is equipped with Donaldson dry air cleaner, having two
purification systems, with two paper filtering elements.
The cooling system for inlet air is of a radiator type. The CAC radiator is intended for
cooling the air, charged into the inlet collector.
The cooling system is closed-type with coolant compulsory circulation carried out by
a centrifugal pump. The water pump is driven by a V-belt from the crankshaft pulley. A
thermostat mounted is provided for acceleration of engine warming-up after start-up and for
automatic control of a temperature mode at various loadings and ambient temperatures.
Two systems of selective catalytic reduction (SCR1, SCR2) are additionally installed
in the exhaust system to provide a required chemical composition of exhaust gases under
Stage 4.
The coupling clutch is frictional, dry, two-disk, spring-loaded. The clutch pads are as-
bestos free. The coupling control drive is hydrostatic with a hydraulic booster.
The basic configuration gearbox is with double-lever control, with synchronized re-
duction gear unit, 14F + 4R
Against order it is possible to install transmission with a synchromesh GB with dou-
ble-lever control and reverse gear (GB 7F + 6R).
The rear axle is with the main drive, differential with locking mechanism electrohy-
draulic control and final drives.
Brakes: service brakes are multi-disk, oil-lubricated, located on drive pinion shafts of
hub drive. It is possible to mount the dry-friction brakes. The service brake control drive is
hydraulic. The parking brake is independent, manually controlled. The trailer brake control
drive is double-line pneumatic interlocked with tractor operating brakes control. Against or-
der it is possible not to install the trailer brake pneumatic drive on the tractor. If there is no
trailer brakes control pneumatic drive, tires are inflated through a valve of the pneumatic
compressor.
The rear power takeoff shaft is continuous dual-speed (540 and 1000 min-1) and
synchronous, the direction of rotation is clockwise when viewed from the shaft end face.

922.6-0000010 OM
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There are PTO shaft end extensions: PTO shaft end extension 1 (6 splines, 540 min-1),
PTO shaft end extension 1c (8 splines, 540 min-1), PTO shaft end extension 2 (21 splines,
1000 min-1).
Steering is hydrostatic. The feed pump is gear-type, the direction of rotation is left.
The dosing pump is gerotor-type, with an open centre, without steering response. The type
of the rotation mechanism - one hydraulic cylinder (TS63x200) of bidirectional operation and
a steering linkage.
The front driving axle – with main gear, a self-locked differential, final gears (plane-
tary gear groups). The FDA drive is a transfer gearbox with automatic FDA engagement,
two cardan shafts and intermediate bearing with overload clutch. The FDA drive control is
mechanical.
The hydraulic system is remote cylinder hydraulic system with hydraulic lift (which
provides draft control, position and mixed control of the agricultural implements), with left
and right side outputs and a pair of rear outputs.
The rear lift linkage is a three-point linkage of category 2 under ISO 730 and a link-
age 2 under GOST 10677 with outer or inner lock of lower links. There are two cylinders
TS80x220.
Draw hitches of lift type:
- non-rotatable towing yoke (DH 2V) – for coupling with semi-trailers and semi-trailed
implements;
- rotatable towing yoke (DH 3V) – for coupling with trailers and trailed implements;
- drawbar hitch “Python” (DH-2R) – for coupling with semi-trailers and semi-trailed
machines (option);
- towing bar (DH-1M-01) –for coupling with semi-trailed and trailed agricultural ma-
chines (option);
- crossbar (DH-1) – for coupling with trailed and semi-trailed machines (option).
- twin cross bar (DH-1ZH-01) – for coupling with trailed and semi-trailed machines (if
lower telescopic links are installed against order).
The cabin is a low-profile, single-seated with a protective rigid framework, having
thermal, noise and vibration insulation, equipped with a sprung seat adjustable for opera-
tor's height and weight, with rear-view mirrors, with a sun visor, with electrical wipers for
front and rear screens, with front and rear screen washers, with a roof lamp and a place to
install a radio set, with a system of heating and ventilation (against order – additional air-
conditioning). The cab doors have got locks; there are keys for the left door. The right door
is for emergency exit. The cab complies with category 2 under EN 15695-1:2009.
The electrical equipment complies with GOST 3940. The rated power supply voltage
for on-board network is 12V. The rated voltage for the start-up is 12V.
Instruments are a combination of devices; they are an integrated indicator; informa-
tional display; pilot lamps (glow lamps and light emitting diodes), located on the block of pi-
lot lamps, on the control panel of the rear axle differential lock, PTO and FDA drive, on the
engine control system board.
1.4 Vibration level at the operator's working place of the tractor “BELARUS-
922.6”
Vibration level at the operator's seat complies with the Council Directive 78/764/ЕEС.
Values for vibration level are given in the EU type approval on each type of a seat.

922.6-0000010 OM
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1.5 Noise level at the operator's working place of the tractor “BELARUS-922.6”
Noise level at the operator's workplace conforms to Directive 2009/76/ЕС, Appendix
2, and does not exceed the value 86 dB (A). External noise level conforms to Directive
2009/63/ЕС and does not exceed the value 89 dB (A).
1.6 Tractor and its component marking
A metal nameplate is fixed at the rear of the cab on the right side, as shown in Figure
1.6.1.
Additionally the tractor serial number is applied by means of percussion on the right
side member and duplicated on the right plate of the front ballast weight.
Figure 1.6.1 – The place of the tractor nameplate application
Engine number and numbers of its components are given in engine operation manu-
al.
Numbers of tractor components are given in table 1.6.1.
Table 1.6.1 – Numbers of tractor components
Number of clutch casing
(to the left as viewed in the di-
rection of tractor motion)
Serial number
Clutch case
configuration
number

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Number of gear box
(to the left as viewed in the direc-
tion of tractor motion)
Transmission and rear axle serial
number on tractors with hydrau-
lic lift (to the right as viewed in
the direction of tractor motion)
Transmission and rear axle serial
number on tractors with draft
control unit (on rear axle body
from behind)
FDA number (on the rail sleeve)
Cab serial number is located in-
side the cab, to the right of the
dashboard
Serial numbe
r
Clutch
configuration
number
Clutch case
GB
RA
FDA serial
numbe
r
year
week
number
version

922.6-0000010 OM
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2 CONTROLS AND INSTRUMENTS
2.1 Layout of controls and instruments of the tractor
Controls and instruments located in the tractor cab are shown in Figure 2.1.1.
Figure 2.1.1 – Tractor controls and instruments

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To the Figure 2.1.1 – Layout of controls and instruments of the tractor:
1 – place for radio receiver (car stereo) installation; 2 – sun visor; 3 – recirculation shutters; 4
– button switch unit of upper shield; 5 - handle to control the cab heater valve; 6 - cab lamp with
switch; 7 – deflectors; 8 - engine system control panel; 9 – battery remote disconnect switch; 10 -
starter and instruments switch; 11 - left multifunctional underwheel switch; 12 - GB control lever of
reduction gear unit; 13 – instrument board; 14 – pilot lamps unit; 15 – integrated indicator; 16 –
steering wheel ; 17 - right multifunctional underwheel switch; 18 - emergency flashing switch; 19 –
integrated indicator control panel; 20 - fuel supply control knob; 21 – central light switch; 22 – fuel
supply control pedal; 23 - right service brake control pedal; 24 – brake pedals connecting plate; 25 –
left service brake control pedal; 26 - switch of front working lights mounted on front lamp brackets;
27 - handle for steering rake tilt fixation; 28 – clutch control pedal; 29 – parking brake control lever;
30 - handle to switch between the ground-speed and continuous drives of PTO; 31 – FDA drive
control handle; 32 – range shifting lever of gearbox; 33 – gear shifting lever of gearbox; 34, 35, 36 –
levers to control hydraulic system outlets; 37 – rear axle DL and rear PTO control panel; 38, 39 –
RLL hydrohoist operation levers.
Against order your tractor may be equipped with a conditioner instead of a fan-heater.
2.2 Switches of the instrument board
1 – starter and instruments switch; 2 – multifunctional under-wheel switch on the left;
3 – multifunctional under-wheel switch on the right; 4 – emergency flashing switch; 5 – cen-
tral light switch; 6 – switch of front working lights mounted on the front lights brackets; 7 –
accumulator battery remote switch.
Figure 2.2.1 – Switches of the instrument board
The starter and instruments switch 4 (see fig. 2.2.1) has four positions:
- «0» – off;
- «I» – instruments, pilot lamps unit, heating plugs are on;
- «II» – starter is on (non-fixed position);
- «III» – radio set is on.