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”.

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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