Belarus 1220.6 User manual

BELARUS
1220.6
1220.6-0000010 OM
OPERATOR’S MANUAL
2016

The operator's manual was composed by an engineer of the first Department of
Constructive and Experimental Works (DCEW), 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 1220.6
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 servicing of tractors
BELARUS-1220.6.
In view of OJSC “MTW” policy directed to constant upgrading of produced goods, the con-
struction 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 or on www.belarus-tractor.com.
© OJSC Minsk Tractor Works, 2016
All rights reserved. No part of this book may be reproduced in any form without written
permission of OJSC MTW.

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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-1220.6”................. 17
1.5 Noise level at the operator's working place of the tractor “BELARUS-1220.6”........... 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 instrument board.................................................................................. 20
2.3 Upper shield unit of button switches and rear wiper switch.....................................22
2.4 Cab heater and fan control...................................................................................... 23
2.5 Conditioner control.................................................................................................. 24
2.5.1 Conditioner control in conditioning mode............................................................. 24
2.5.2 Conditioner control in a heating mode................................................................. 25
2.5.3 Cab ventilation..................................................................................................... 25
2.6 Instrument board..................................................................................................... 26
2.7 Pilot lamps unit........................................................................................................ 28
2.7.1 General information.............................................................................................. 28
2.7.2 Functioning algorithm of pilot lamp to indicate operation of heating plugs........... 29
2.8 Integrated indicator and II control panel.................................................................. 30
2.8.1 General information.............................................................................................. 30
2.8.2 Assignment and operation principle of integrated indicator gauges..................... 30
2.8.3 Pilot lamps of the integrated indicator.................................................................. 34
2.8.4 Description of testing the indicator performance.................................................. 34
2.8.5 The Intergrated Indicator Programming Method.................................................. 35
2.9 Engine control panel................................................................................................... 37
2.9.1 General information.............................................................................................. 37
2.9.2 Information display............................................................................................... 37
2.9.2.1 General information........................................................................................... 37
2.9.2.2 Adjustment of brightness and sharpness of the information display................. 38
2.9.2.3 Call up of changeable images and parameters on the screen of the infor-
mation display............................................................................................................... 38
2.10 Steering................................................................................................................. 41
2.10.1 General information............................................................................................ 41
2.10.2 Steering wheel adjustments............................................................................... 41
2.11 Parking brake control............................................................................................ 41
2.12 Handle for fuel feed manual control...................................................................... 41
2.13 Tractor pedals....................................................................................................... 42
2.14 Switching of ranges and gears of gearbox...................................................................................... 43
2.14.1 General information............................................................................................ 43
2.14.2 Tractor with GB16х8 velocity diagram............................................................... 43
2.15 Control of rear axle DL, FDA drive and rear PTO................................................................... 44
2.15.1 General information............................................................................................ 44
2.15.2 Rear axle DL control...........................................................................................44
2.15.3 Front driving axle (FDA) drive control................................................................ 45
2.16 Rear power take-off shaft control............................................................................................. 45
2.16.1 Lever shifting rear PTO from continuous drive to ground-speed drive.............................. 45
2.16.2 Rear power take-off shaft engagement.............................................................. 45
2.16.3 Two-speed continuous drive of rear PTO switch................................................ 46

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4
2.16.4 Tractor operation without use of rear PTO......................................................... 46
2.17 Rear lift linkage control.......................................................................................... 47
2.17.1 RLL control elements......................................................................................... 47
2.17.2 General information about RLL control rules......................................................47
2.18 HLL pump control.................................................................................................. 49
2.19 Hydraulic lift linkage distribution valve sections (remote cylinders) control............. 49
2.19.1 Сontrol of remote hydraulic cylinders with distribution valve RP70-1221 or
RP70-1221.1 installed by means of levers.................................................................... 49
2.19.2 Control of remote hydraulic cylinders with distribution valve RP70-622 or
RS213Mita installed by means of joystick and lever........................................................ 51
2.20 Cutout fuses.......................................................................................................... 53
2.20.1 General information............................................................................................ 53
2.20.2 Fuses for electrical equipment system............................................................... 53
2.20.3 Fuses for electronic systems to control rear axle DL, FDA, RPTO, GB and
RLL reduction gears...................................................................................................... 54
2.20.4 Fuse for engine electronic control system (EECS).............................................55
2.21 Cab locks and handles.......................................................................................... 58
2.21.1 Cab door locks................................................................................................... 58
2.21.2 Left-side window opening................................................................................... 58
2.21.3 Rear window opening......................................................................................... 59
2.21.4 Cab roof opening................................................................................................ 59
2.21.5 Cab emergency exits..........................................................................................59
2.22 Seat and its adjustments....................................................................................... 59
2.23 Controlling drive of transmission hydraulic system pump..................................... 62
2.24 Controlling pneumatic system compressor........................................................... 62
2.25 Connector elements of the electrical equipment................................................... 63
2.25.1 Socket to connect coupled agricultural equipment......................................................... 63
2.25.2 Connection of coupled machines electrical equipment through socket block... 63
2.25.3 Additional connection options for electrical equipment of coupled machines................ 64
2.26 Creeper control...................................................................................................... 65
2.26.1 Creeper control on tractors with GB16х8........................................................... 65
2.26.2 Creeper control on tractors with GB 24x12........................................................ 66
2.27 Gears and ranges shifting of GB 24х12....................................................................... 66
2.28 Control of rear lift linkage with electrohydraulic control system.............................68
2.28.1 General information on control rules of rear lift linkage with electro hydraulic
control system............................................................................................................... 68
2.28.2 RLL control panel............................................................................................... 68
2.28.3 Remote buttons of RLL control system.............................................................. 70
2.28.4 Troubleshooting of RLL electronic control system............................................. 71
2.29 SCR system operation.......................................................................................... 72
2.29.1 SCR system liquid tank...................................................................................... 72
2.29.2 SCR system operation Indication....................................................................... 72
3 INTENDED USE OF TRACTOR................................................................................ 76
3.1 Safety measures to be taken preparing tractor for operation.................................. 76
3.2 Tractor use.............................................................................................................. 77
3.2.1 Boarding the tractor.............................................................................................. 77
3.2.2 Preparing for start and starting the engine........................................................... 77
3.2.3 Tractor motion start, GB shifting...........................................................................78
3.2.4 Tractor stop.......................................................................................................... 80

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3.2.5 Engine stop.......................................................................................................... 80
3.2.6 Leaving the tractor............................................................................................... 81
3.2.7 PTO use............................................................................................................... 81
3.2.8 Selection of optimal inner pressure in tires depending on operational conditions
and load on tractor axles............................................................................................... 83
3.2.8.1 Selection of optimal inner pressure in tires depending on operational condi-
tions and load on tractor axles...................................................................................... 83
3.2.8.2 Tire inflation....................................................................................................... 85
3.2.9 Rear wheel track formation.................................................................................. 86
3.2.10 Rear wheel twinning........................................................................................... 87
3.2.11 Front wheel track formation................................................................................ 88
3.3 Safety measures to be taken when operating the tractor........................................ 90
3.3.1 General safety measures to be taken when operating the tractor........................90
3.3.2 Fire safety measures............................................................................................ 93
3.4 Tractor final assembly and run-in............................................................................ 94
3.4.1 Tractor final assembly.......................................................................................... 94
3.4.2 Technical maintenance before tractor run-in........................................................ 94
3.4.3 Tractor run-in........................................................................................................ 94
3.4.4 Technical maintenance during tractor run-in........................................................ 95
3.4.5 Technical maintenance after tractor run-in........................................................... 95
3.5 Emergency actions.................................................................................................. 96
4 COUPLING OF IMPLEMENTS.................................................................................. 97
4.1 General information................................................................................................. 97
4.2 Types of implements coupled with tractor “BELARUS-1220.6”...............................98
4.3 Rear lift linkage........................................................................................................99
4.3.1 General information.............................................................................................. 99
4.3.2 Three-point rear lift linkage...................................................................................99
4.3.3 RLL components adjustment rules....................................................................... 103
4.3.3.1 Buckles.............................................................................................................. 103
4.3.3.2 Lifting rod...........................................................................................................104
4.3.3.3 Upper link.......................................................................................................... 105
4.3.4 Attachment of implements to a tractor..................................................................105
4.4 Drawbar hitches...................................................................................................... 106
4.4.1 General information.............................................................................................. 106
4.4.2 Fixed towing yoke (DH-2V).................................................................................. 107
4.4.3 Drawbar hitch rotary yoke (DH-ЗV)...................................................................... 108
4.4.4 “Python” drawbar hitch (DH-2R)........................................................................... 109
4.4.5 Drawbar hitch draw bar (DH-1М-01).................................................................... 110
4.4.6 Drawbar hitch crossbeam (DH -1)........................................................................ 111
4.4.7 Determining the maximum allowable load on tractor DH depending on the rear
tires standard size, applicable DH type and tractor travel speed.................................. 112
4.5 Usage patterns of tractor hydraulic system for driving of operated parts and other
elements of unitized hydraulically operated machines and aggregates........................ 113
4.6 Front ballast weight installation................................................................................... 114
4.7 Trailer brake actuator............................................................................................. 115
4.7.1 General information.............................................................................................. 115
4.7.2 Double-line pneumatic drive of trailer brakes....................................................... 115
4.7.3 Hydraulic drive of trailer brakes............................................................................ 116
4.7.3.1 General information........................................................................................... 116

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4.7.3.2 Adjustment of hydraulic actuator of trailer brakes............................................117
4.8 Determination of PTO shaft and cardan shaft applicability.................................... 118
4.9 Features of application of PTO shafts and cardan shafts...................................... 118
4.10 Ways of changing of drawbar features and passing ability of the tractors.................. 122
4.11 Features of the tractor application in special conditions...................................... 123
4.11.1 Tractor operation in areas with rugged topography.......................................... 123
4.11.2 Application of substances for the purpose of chemical treatment.................... 123
4.11.3 Operation in a forest......................................................................................... 123
4.12 Finding of total weight, loads on the front and rear axles, tires holding capacity
and required minimum ballast......................................................................................124
4.13 Possibility of front loader installation................................................................... 126
4.13.1 General information.......................................................................................... 126
4.13.2 Safety measures at tractor “BELARUS-1220.6” operation with loader in-
stalled....................................................................................................................... .128
4.13.3 Information about mounting holes of tracto
r
..................................................... 130
5 MAINTENANCE........................................................................................................132
5.1 General instructions.............................................................................................. 132
5.2 Providing access to the components for maintenance service
s
........................................... 134
5.3 Maintenance procedure......................................................................................... 135
5.4 Scheduled maintenance servicing operations....................................................... 138
5.4.1 Maintenance on a shift basis (SBMS) in every 8 – 10 hours of operation or per
shift.............................................................................................................................. 138
5.4.2 Maintenance services in every 125 hours of operation...................................... 145
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 is incon-
sistent with intervals of MS-1, 2MS-1, MS-2, MS-3 and special MS............................149
5.4.3.1 General instructions......................................................................................... 149
5.4.3.2 Operation 31. Check/adjustment of clearances in steering joints.................... 149
5.4.3.3 Operation 32. Check and adjustment of front wheels toe-in............................ 150
5.4.3.4 Operation 39. Check and adjustment of clutch pedal free travel..................... 151
5.4.3.5 Operation 42. Check / adjustment of service brake control............................. 152
5.4.3.6 Operation 43. Check / adjustment of parking brake control.............................153
5.4.4 General maintenance services........................................................................... 155
5.4.4.1 General guidelines........................................................................................... 155
5.4.4.2 Operation 68.
A
djustment of valves of GB driven cent
r
ifuge........................... 155
5.4.4.3 Operation 69. Adjustment of oil pressure in the engine lubrication system.... 156
5.4.4.4 Operation 70. Maintenance of engine air cleaner............................................ 157
5.5 Seasonal maintenance services............................................................................ 158
5.6 Safety measures during maintenance and repair operations................................ 159
5.6.1 General safety requirements.............................................................................. 159
5.6.2 Safety precautions for exclusion of hazardous situations, related to an accu-
mulator battery and a fuel tank.................................................................................... 159
5.6.3 Guidelines for safe use of leveling jacks and statement of places where they
shall be installed.......................................................................................................... 160
5.7 Instruments, work tools and measuring devices while maintenance services and
repai
r
............................................................................................................................... 162
5.8 Filling and lubrication of the tractor with fuel and lubrication materials................. 163
6. POSSIBLE MALFUNCTIONS
A
ND GUIDELINES FOR TROUBLESHOOTING... 169
6.1 Possible clutch failures and instructions for their troubleshooting......................... 169
6..2 Possible failures in the gearbox and instructions for their troubleshooting.......... 170

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6.3 Possible failures in the electronic control system for rear axle differential lock,
front driving axle drive, rear power take off shaft, GB reduction gear and instruc-
tions for their troubleshooting...................................................................................... 171
6.4 Possible failures in rear axle and instructions for their troubleshooting................ 173
6.5 Possible failures in rear power take-off shaft and instructions for their trouble-
shooting.................................................................................................... .................. 174
6.6 Possible failures of brakes and instructions for their troubleshooting.................... 175
6.7 Possible failures in the pneumatic system and instructions for their trouble-
shooting........................................................................................................... ........... 176
6.8 Possible failures of trailer brake hydraulic actuator and guidelines for trouble-
shooting........................................................................................................... ........... 178
6.9 Possible failures of the transmission hydraulic system and instructions for their
troubleshooting............................................................................................................ 179
6.10 Possible failures of FDA and instructions for their troubleshooting..................... 180
6.11 Possible failures of the hydrostatic steering control and instructions for their
troubleshooting............................................................................................................ 182
6.12 Possible failures in the HLL with a lift linkage and instructions for troubleshoot-
ing........................................................................................................... .................... 185
6.13 Possible failures in the HLL with RLL electronic control system and instruc-
tions for their troubleshooting...................................................................................... 187
6.13.1 Possible failures in the RLL electronic control system and instructions for
their troubleshooting.................................................................................................... 187
6.13.2 Possible failures of the hydraulic lift linkage and guidelines for troubleshoot-
ing........................................................................................................... .................... 192
6.14 Possible failures in the electrical equipment and instructions for their trouble-
shooting........................................................................................................... ........... 194
6.15 Possible failures of air-conditioning, air ventilation and cab heating systems
and instructions for troubleshooting............................................................................. 196
6.16 Possible engine failures and instructions on their troubleshooting...................... 197
7 TRACTOR STORAGE.............................................................................................. 198
7.1 General instructions............................................................................................... 198
7.2 Requirements for inte
r
-shift tractor storage of machines....................................... 198
7.3 Requirements for short-term tractor storage..........................................................198
7.4 Requirements for outdoors long-term tractor storage............................................ 199
7.5 Preservation...........................................................................................................200
7.6 Depreservation and represervation....................................................................... 200
7.7 Putting tractor into operation after long-term storage............................................ 201
7.8 Safety requirements for preservation.................................................................... 201
8. TRACTOR TRANSPORTATION AND TOWING..................................................... 201
Service bulletins...........................................................................................................203
ANNEX А(Сompulsory) – Electric circuit diagram of BELARUS-1220.6 engine
electronic control system............................................................................................. 204
ANNEX B (Сompulsory) – Electric circuit diagram of BELARUS-1220.6 with GB
16x8rear axle DL, FDA and rear PTO electronic control system................................. 205
ANNEX C (Compulsory) – Electric circuit diagram of BELARUS-1220.6 with GB
24x12 rear axle DL, FDA, reduction unit gears and rear PTO..................................... 206
ANNEX D (Compulsory) – Electric circuit diagram of BELARUS-
920.6/952.5/952.6/1021.5/1021.6/1025.5/1220.6/1220.5/1220.6/1221.5/1221.6
electrical equipment connections................................................................................ 207

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Introduction
The present manual is designed for studying the structure, operation rules and mainte-
nance of tractors “BELARUS-1220.6”.
Scrutinize this manual 245 S4-0000100 OM engine operation manual, attached to your
tractor. It will help you to study the rules of correct operation and maintenance.
Failure to follow this instruction can lead to operator's injury or a breakdown of a tractor.
Operation of a tractor, its maintenance and repair shall be carried out only by employ-
ees, familiar with all of its parameters and characteristics and informed about necessary safety
requirements to prevent casualties.
In connection with constant development of the tractor some changes, which are not
depicted 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 responsibility for
possible further injuries to the operator and tractor breakdown. In addition, shall the consum-
er introduce any changes in the assembly units within the warranty period, the tractor war-
ranty will be automatically terminated.
Adopted abbreviations and conventional notations:
AB – accumulator battery;
DL – differential lock;
PLU – pilot lamps unit;
ECO – engine control unit;
PTO – power takeoff shaft;
PRS – power reception shaft;
HSC – hydrostatic steering control;
HLL – hydraulic lift linkage;
FLM – fuel and lubrication materials
FFVS – frequency fuel volume sensor;
STM – shift-time maintenance;
SPTA – spare parts, tools and accessories;
RA – rear axle;
RLL – rear lift linkage;
II – integrated indicator;
GB – gearbox;
MTU – machine and tractor unit;
CC – coupling clutch;
LL – lift linkage;
IAH – inlet air heater;
FDA – front driving axle;
VC – voltage converter;
CM – 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.
The manufacturer uses standard international symbols, regarding application of instru-
ments and control units.

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Given below are the symbols with indication of their meanings.
—see the manual ;
—control manipulations;
—brake;
—fast;
—manual brake;
—slowly;
—audible beep;
—forward;
—alarm signaling;
—reverse;
—fuel; —accumulator charging;
—coolant;
—cab roof light;
—heating plugs; —parking lights;
—engine speed;
—tractor turn indicator;
—oil pressure in the engine;
—trailer turn indicator;
—temperature of engine cool-
ant;
—upper beam;
—low beam;
—off / stop;
—working lights;
—on / start;
—differential lock;
—gradual adjustment; —PTO engaged;
—front screen wiper; —front driving axle drive;

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—rear screen wiper and washer; —fan;
—starter
—starter lock
—oil pressure in HSC
—engine start;
—beacon —road-train
—oil pressure in gearbox
— external cylinder – retracting
— air filter clogged
— external cylinder – protracting
—air pressure in pneumatic sys-
tem — external cylinder – floating
— swivel lever – up
—engine stop
— swivel lever – down
— front working headlights on
handrails and roof
— instruments lightening — instruments power supply
—power supply +12V — AB disconnection lock

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1 TRACTOR DESCRIPTION AND OPERATION
1.1 Tractor assignment
The tractor “BELARUS-1220.6” is intended for performance of various general –
purpose agricultural operations with mounted, semi-mounted and trailed machines and
implements, for loading-unloading works and transportation works.
The tractor “BELARUS-1220.6” is a general-purpose wheeled tractor of traction
class 2 with the wheel formula 4X4.
Appearance of the tractor “BELARUS-1220.6” is presented in figures 1.1.1.
Figure 1.1.1 – Basic configuration of tractor “BELARUS-1220.6”

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1.2 Technical specifications
Main parameters and technical specifications of tractor BELARUS-1220.6 are given
in table 1.2.1.
Table 1.1
Parameter
(characteristics) title
Parameter value for the tractor
“BELARUS-1220.6”
1 Traction class as per GOST 27021 2
2 Rated traction force, kN 20
3 Engine
1)
а) model D-245.2 S4
b) engine type
2)
turbocharged with intercooling of the
char
g
ed ai
r
c
)
number and position of c
y
linders
2)
four, in-line, vertical
d) displacement, l
2)
4,75
e) engine power, kW:
1) rated
2)
90,0
2) normal 86,8±2,0
f) crankshaft rated speed, rpm
2)
2200
g) specific fuel consumption at normal
power, g/(kW·h)
236+7
h) turning torque rated factor, %
2)
25
i) max turning torque, N·m
2)
501
4 Number of gears:
а) for forward travel 16
3)
b) for backward travel 8
3)
5 Tractor travel speed (design) at crank-
shaft rated speed, km/h:
а) for forward motion:
1) least 1,7
3)
2) highest 36,7
b) for backward motion:
1) least 3,1
3)
2) highest 17,2
6 Tractor weight, kg:
а) structural 5000±100
b) operating with ballast 5585±100
c) operating without ballast 5145±100
d) max. operating 8000
e) ex-works
4)
5375±100
7 Distribution of operating weight on ax-
les, kg:
а) on front 2420±50
5)
b) on rear 3165±50
5)

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Table 1.2.1 continued
Parameter
(characteristics) title
Parameter value for the tractor
“BELARUS-1220.6”
8 Permitted load on axles, kN:
а) on front 40
b) on rear 60
9 Max weight of the trailer, kg
а) without brakes 2500
b) with independent brake 4000
c) with overrunning brake 12000
d) equipped with a brake system (trailer
brakes are interconnected with tractor
brakes)
20000
10 Clearance, mm (on tyres of basic con-
figuration) not less than:
а) road 450
b) agrotechnical under rear wheel as-
semblies 645
11 Track dimensions (on tyres of basic
configuration), mm:
a) on front wheels for short beam 1535±20, 1635±20, 1700±20, 1800±20,
b) on front wheels for long beam 1850±20, 1950±20, 2020±20, 2120 ±20
c) for rear wheels From 1500±20 to 1600±20 and from 1800±20 to
2100 ±20
12 Least radius of turning circle (with
braking), m 4,5
13 Tractor base, mm 2550±50
14 Maximum fordable depth, m 0,85
15 Service life, years 12
16 Overall dimensions, mm:
a)length with lift linkage in transport posi-
tion 4600±50
b) length over external diameters of
wheels 4280±50
c) width on rear wheel axle shaft ends
2250±10
d) height to the top of cab 2890±50
17 Tyres (basic configuration):
а) front wheels 420/70R24
b) rear wheels 18.4R38
18 Electrical equipment as per GOST
3940:
а) rated supply voltage in on-board pow-
er system, V 12
b) rated ignition voltage, V 12

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Table 1.2.1 finished
Parameter
(characteristics) title
Parameter value for the tractor
“BELARUS-1220.6”
21 Hydraulic system:
а) pump displacement under crankshaft
rated speed, l/min, not less than
56
b) safety valve operation pressure, MPa
20-2
c) conventional volume factor, not less
than
0,75
22 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 2037 rpm) 540
- position II (under the engine crankshaft
speed of 2157 rpm) 1000
2) rated speed of PTO shaft end with
the continuous drive on, rev/meter of
travel:
3,5
See in Subsection 3.2.7 PTO Use
b) rear lift linkage:
1) loading capacity of rear lift linkage on
suspension axis, kg, not less than
4200
2) time for raising rear lift linkage from
lowermost position into uppermost position
with test load on suspension axis, sec., not
more than
3
e) drawbar hitch: In section 4 “Coupling of implements”
_____________________________________________________________________________________________________________
1) Engine parameters, not specified in the table 1.2.1, shall meet 245 S4 – 0000100
OM document.
2) For referential use.
3) Without a creeper. Installation of a creeper against order provides additional four
speeds for forward travel and four speeds for the reverse.
4) Specified depending on the configuration.
5) With ballast weights mounted.
Note – The number of gears and tractor speed values in Table 1.2.1 at the nominal
engine crankshaft speed are specified for BELARUS-1220.6 equipped with GB 16x8
(standard configuration). The number of gears and tractor speed values for BELARUS-
1220.6 equipped with GB 24х12 (custom configuration) are shown in point 2.27 GB24х12
range and gear switching.

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15
1.3 Tractor composition
Tractor framework – semi-frame.
Undercarriage: front and rear driving wheels, with pneumatic tyres of low pressure. Steer-
ing wheels are front wheels. The wheels can be twinned by means of spacers.
The tractor is equipped with 4-stroke piston four-cylinder inner combustion engine with in-
line vertical arrangement of cylinders, with direct injection of diesel fuel and compression igni-
tion, corresponding to environmental requirements of Stage 4.
System of engine lubrication is combined, some parts are lubricated under pressure,
some – by spattering. The lubrication system consists of an oil sump, oil pump, liquid-oil heat
exchanger, 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, fuel accumulator under high pressure, sensors of engine working environment
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.
System of engine start-up is electric starter. A means of start-up facilitation under low
environmental temperatures are the heating plugs.
System of air delivery consists of a turbocharger, an air pipeline and a system of
charged air cooling.
The turbocharger is executed as follows: radial centripetal turbine and centrifugal sin-
gle-stage compressor with cantilever arrangement of wheels in relation to supports.
The system of air purification consists of a dry-type air cleaner of “Donaldson” company
with two paper filtering elements. This air cleaner has two stages of purification.
Cooling system for charged air is of a radiator type. The CAC radiator is intended for cool-
ing the air, charged into the inlet collector.
System of engine cooling is closed-type with coolant compulsory circulation executed
by a centrifugal pump. The water pump is driven by a V-belt from the crankshaft pulley. For
acceleration of engine warming up after start-up and for automatic control of a temperature
mode at various loadings and ambient temperatures there is an thermostat.
To provide for a required chemical composition of exhaust gases under Stage 4
ecological requirements the two stages of the system of selective catalytic reduction
(SCR1, SCR2) are additionally installed in the exhaust system.
The coupling clutch is frictional, dry, two-disk, spring-loaded. The CC overlays are as-
bestos free. The coupling control drive is mechanical.
The gearbox is 16F + 8R, mechanical, fixed-ratio, with constant-mesh gears. Shifting of
gears within the ranges is executed by means of synchro-mesh units, switching between
ranges is executed by toothed clutches.
The rear axle is with the main drive, differential, final drives and planetary-type rear-axle
drives.
Brakes: service brakes are multidisk, oil-lubricated, located on final drive pinion shafts;
the parking brake is independent, manually controlled. It is possible to mount the dry-friction
service brakes by order. The trailer brake control drive can be either double-line pneumatic, or
hydraulic, interlocked with tractor service brakes control. Against order the tractor may not be
equipped with the trailer brake pneumatic drive. If there is no trailer brakes control pneumatic
drive tires are inflated through a valve of the pneumatic compressor.

1220.6-0000010 OM
16
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.
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).
The transmission hydraulic system provides for the following:
- switching of the FDA drive, differential lock, PTO engagement;
- filtration of transmission oil;
- pressure feed lubrication of gearbox bearings, of FDA drive bearings;
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 differential hydraulic cylinder (Ц63x200) of bidirectional
operation and a steering linkage.
The front driving axle has an axle drive gear, a self-locked differential, final gears
(planetary gear groups). The FDA drive is a parallel-shaft gear unit with hydraulically-
pressed clutch built in the gearbox, a propeller shaft. The FDA drive control is electro-
hydraulic.
The lift linkage is a remote-cylinder system with a hydraulic lift, left and right side
outlets and with rear left and right outlets of the hydraulic system. The rear left outlets are
duplicated with the left side ones.
On demand the electrohydraulic system (EHR) for rear lift linkage automatic control
may be installed on the tractor .
Free drain is available for operation with hydraulic motors.
The rear lift linkage is a three-point linkage of category 2 under ISO 730 and a link-
age 2 under 10677 with external locking of lower link. There are two cylinders Ц80x220.
On demand the tractor may be equipped with a three-point linkage with category 3
attachment points according to ISO 730 and linkage-3 according to ISO 10677 with hitch
draft arm outer lock.
Drawbar hitches of a lift type:
- fixed towing yoke (DH 2V) – for coupling with semi-trailers and semi-trailed imple-
ments;
- rotary towing yoke (DH 3V) – for coupling with trailers and trailed implements;
- “Python“ drawbar (DH-2R) – for coupling with semi-trailers and semi-trailed ma-
chines (against order);
- towing bar (DH-1M-01) –for coupling with semi-trailed and trailed agricultural ma-
chines (against order);
- cross member (DH-1) – for coupling with trailed and semi-trailed machines
(against order).
The cabin is a one-seated with a protective rigid framework, having thermal, noise
and vibration insulation, equipped with a sprung seat adjustable for operator'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 (upon request – additional air-conditioning).
Upon request the tractor can be equipped with an additional seat. The cab doors have got
locks, there are keys for the left door. 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 volt-
age for on-board network is 12V. The rated voltage for the start-up is 12V.
Instruments are a combination of devices; these are an integrated indicator; infor-
mational display; pilot lamps (glow lamps and light emitting diodes), located on the block of
pilot lamps and side console.

1220.6-0000010 OM
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1.4 Vibration level at the operator's working place of the tractor “BELARUS-1220.6”
The vibration level at the operator's seat complies with the Council Directive
78/764/ЕEС. Values for the vibration level are given in the EU type approval on each type
of a seat.
1.5 Noise level at the operator's working place of the tractor “BELARUS-1220.6”
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
Metal nameplate is fixed at the rear of the cab on the left side, as shown in fig.
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 – Place of application the tractor nameplate
Engine number and numbers of its components are given in engine operation man-
ual.
N
ameplates on tractors, which are
delivered to non-EU countries
N
ameplates on tractors, which are
d
e-
livered to EU countries

1220.6-0000010 OM
18
Numbers of tractor components are given in table 1.6.1
Table 1.6.1 – Numbers of tractor components
Number of clutch casing
Number of gear box (as seen
from the left of the tractor's
movement direction)
Transmission and rear axle
serial number
FDA number (on the rail sleeve)
Cab serial number
FDA serial
numbe
r
year
week
number
version
Serial
number
Clutch housing
version number

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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 presented in fig. 2.1.1.
Figure 2.1.1 – Tractor controls and instruments

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To Figure 2.1.1 – Layout of controls and instruments of the tractor:
1 – sun visor; 2 – handle to control the cab heater valve; 3 – place for radio receiver
(car stereo) installation; 4 – deflectors; 5 – – recirculation shutters; 6 – windscreen wiper
switch; 7 – cab heater fan switch; 8 – rear lights switch; 9 – switch of front lights on the cab
roof; 10 – „Road-train“ light switch (design variant); 11 – rear view mirror; 12 – emergency
flashing switch; 13 – multifunctional underwheel switch; 14 – instrument board; 15 – pilot
lamps unit; 16 – integrated indicator; 17 – steering wheel; 18 – integrated indicator control
panel; 19 – starter and instruments switch; 20 – accumulator battery remote disconnect
switch; 21 – windscreen washer switch; 22 – central light switch; 23 – switch of front lights
mounted on handgrips switch; 24 – clutch control pedal; 25 – front panel of dashboard; 26 –
handle for steering rake tilt fixation; 27 – left brake control pedal; 28 – right brake control
pedal; 29 – accelerator pedal; 30 – right cab center post; 31 – cab lamp with switch; 32 –
range shifting lever of gearbox; 33 – gear shifting lever of gearbox; 34,35,36 – levers to
control hydrosystem outlets; 37 – parking brake control lever; 38 – hydraulic lift control
board; 39, 40 – RLL hydrohoist control levers; 41 – side board; 42 – handle to control fuel
supply. 43 –limiter for the position control lever; 44 – handle to switch between the
ground-speed and continuous drives of PTO; 45 – seat; 46 – rear screen wiper switch.
On demand instead of a heater fan your tractor may be equipped with an air condi-
tioner, GB 24х12 may be installed in place of GB 16х8 on demand. On demand your trac-
tor may be equipped with electrohydraulic RLL control system instead of RLL control sys-
tem with a hydraulic linkage. A reduction gear may be installed on the tractor on demand.
2.2 Switches of instrument board
1 – switch of front working lights, mounted on handgrips; 2 – emergency flashing
switch; 3 – multifunctional underwheel switch; 4 – starter and instruments switch; 5 – ac-
cumulator battery remote switch; 6 – windscreen washer switch; 7 – central light switch.
Figure 2.2.1 – Switches of 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.
The layout of positions of starter and instruments disconnect switch is given in fig.
2.2.2 and in informational plate of the switch.