MTW Belarus 90 Manuale utente
BELARUS
90/92
90 – 0000010 РЭ
OPERATING
MAINTENANCE
WORK-SHOP MANUAL
2008
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The present operating manual has been compiled by I.N. Korobeinik, engineer of MSDB of
MTW, with participation of the leading specialists of Main Specialized Design Bureau of Minsk
Tractor Works RUE.
Executive Editor — I.N. Uss, Director of the Scientific and Technical Center
Chief designer
Publications Assistant— O.N. Natalevich, head of Design Bureau
Tractors Belarus 90/92 Operating manual.
Operating manual contains brief description and specification of tractors Belarus 90/92
manufactured by Minsk Tractor Works. Principal rules of machine operation are set forth, data on
their adjustments and maintenance are provided.
The manual is intended for tractor drivers, operating Belarus tractors.
Due to policy of MTW PA aimed at constant updating of items being manufactured, changes,
which are not reflected in present edition, can be made in the design of some assembly units and
parts of Belarus tractor.
Some technical data and figures given in this book may differ from actual ones on your tractor.
Dimensions and values of mass are approximate (given for reference). For detailed information
please contact your Belarus dealer.
General note: References “left” or “right” in the present manual are made from a viewpoint of an
observer, staying behind a tractor that is moving forward.
© Minsk Tractor Works RUE, 2008
All rights reserved. This book may not be reproduced or copied, in whole of in part, without
written permit of Minsk Tractor Works RUE.
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FOR THE ATTENTION OF OPERATOR!
1. Before tractor operation thoroughly study the present operating manual and strictly follow its
requirements.
2. Use seasonal diesel fuel according to the manual. Reduce engine oil change intervals in half,
if the diesel fuel contains up to 1% of sulfur.
3. Avoid engine idle running for more than 15 minutes.
4. Remember that engine starting is possible only when transmission lever is in its extreme left
position (in on-position of I or II gear range).
5. During the tractor operation without application of rear PTO, install a shifting lever of
separate dual-speed PTO drive into I position (540 rpm), lever of separate - synchronous PTO
drive into neutral (center) position, and control lever into “PTO off” position (see section
“Controls and Instruments”).
6. Apply synchronous drive of rear PTO, when driving speeds of tractor unit don’t exceed 8
km/h. Otherwise serious damages can occur in tractor power train.
7. Operate the tractor on direct drive only when high gear range (II range) is engaged.
8. Tractor cab is equipped with one-place seat and only operator should sit there.
9. When the tractor is shipped from the works some tractor components are placed into SPTA
box, tool box or cab. You should perform their mounting on the tractor by yourself.
10. When putting new storage batteries in service remove the sealing film from air inlets and cut
away bosses on polyethylene plugs.
11. Avoid tractor operation when clutch coupling is engaged or not completely disengaged.
12. When driving tractor away from rest make sure that parking emergency handbrake is
released.
13. When using tractor without cardan shafts, set FDA selector lever into “forced” position.
14. Do not operate the tractor in indoor areas without required ventilation (air exchange).
Exhaust gases can lead to fatal outcome.
15. It is strictly prohibited to tow the tractor with front wheels raised up. Failure to observe this
rule may result in FDA drive breakdown and emergency situation.
16. It is prohibited to raise front part of tractor using towing shackle. Use the shackle for towing
only.
17. The works are constantly working on tractor development. In this connection the changes,
which are not reflected in the present edition, can be made in design and operating rules of its
separate components.
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БЕЛАРУС-90/92 Содержание
4
CONTENTS
FOR THE ATTENTION OF OPERATOR 3
INTRODUCTION 7
Accepted abbreviations and legend 8
International symbols 9
Section A. SAFETY PRECAUTIONS 11
- General provisions 11
- Safety requirements during tractor operation 11
- Safety requirements during maintenance 12
- Safety requirements in operating and maintaining electrical equipment 13
- Hygiene requirements 13
- Fire safety requirements 13
Section B. TECHNICAL DATA 14
- Weight and overall dimensions 14
- Serial numbers of tractor components 14
- Engine and its systems 17
- Technical data of assembly units 18
- Gearbox 19
- Rear axle 22
- Wheels 25
Section C. CONTROLS AND INSTRUMENTS 26
- Controls and instruments 26
- Starter and instruments switch 27
- Self-contained instruments 28
- Fuses 29
- Electrical equipment connection elements 30
- Gear box control 31
- Front driving axle control 32
- Selector of separate dual-speed PTO drive 33
- Control of hydraulic system pump 33
- Control of hydraulic system distributor 33
- Compressor control 34
- Steering wheel position change 34
- “Belarus” seat 35
Section D. OPERATION INSTRUCTION
- Preparation of tractor for operation 36
- Running in 36
Engine starting 37
- Starting at standard conditions 37
- Starting at low temperatures (+4°Сand lower) 38
- Starting procedure at low temperatures 38
- The beginning of tractor movement 39
- Tractor stop 40
- Engine shutdown 40
- Hydraulic system 40
- Steering 40
Section E. GANGING UP 41
- Attachments for connection of agricultural machinery to tractor 41
- Rear hitch attachment 42
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БЕЛАРУС-90/92 Содержание
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- Mounting machinery on tractor 44
- Towing-hooking device TSU-1Zh 49
- Front ballast weights 50
- Mechanism for hitch retention in transport position 50
- Control of hydraulic system and hitch attachment without draft control unit 51
- Specific character of tractor operation with machines that require driving
from rear PTO 51
- Operation with trailers and trailed machines 53
- Application of auxiliary tractor equipment 54
- Tires 55
- Liquid ballast 59
- Installation of doubled rear wheels 60
Section F. ADJUSTMENTS 61
-Front track adjustment. Steering booster without hydraulic cylinder in
steering linkage 61
- FDA with bevel gear speed reducers. Steering booster without cylinder in
steering linkage 62
- Adjustment of front wheels toe-in of the tractors with steering booster 63
- Rear track adjustment 64
- Adjustment of rear PTO control linkage 65
-Adjustment of release levers position 68
-Adjustment of trailer hook control linkage 68
-Adjustment of rear axle differential lock control (tractors with steering booster) 69
-FDA cardan drive adjustment 69
- Adjustment of tapered roller bearings of directive wheels of Belarus-90 tractors 70
Section G. SCHEDULED MAINTENANCE 71
- Categories of tractor maintenance 71
- Maintenance when preparing tractor for running-in 71
- Maintenance during running-in 72
- Maintenance upon completion of running-in (30 working hours) 72
- Maintenance table 73
- Every 10 working hours or daily 76
- Fulfill foregoing maintenance operations plus following operations every
125 working hours 78
- Fulfill foregoing maintenance operations plus following operations every
500 working hours 84
- Fulfill foregoing maintenance operations plus following operations every
1000 working hours 94
- Fulfill foregoing maintenance operations plus following operations every
2000 working hours 102
- General maintenance 104
- Seasonal maintenance 104
- Tractor maintenance in special operating conditions 105
- Lubrication table 106
- Refill capacities 107
- Adjusting parameters of fuel pumps on stand 108
Section H. POSSIBLE MALFUNCTIONS AND REMEDIES 109
- Engine 109
- Clutch 110
- Main gear of rear axle 110
- Brakes 111
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БЕЛАРУС-90/92 Содержание
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- Rear PTO 111
- Front driving axle 111
- Steering 112
- Hydraulic lift linkage 113
- Electrical equipment 114
Section I. TRACTOR TRANSPORTATION AND TOWING 115
Section J. TRACTOR STORAGE 116
Section K. DISPOSAL OF TRACTOR 120
Annex L. Wiring Diagram 121
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Introduction Belarus – 90/92 Operating manual
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INTRODUCTION
Wheel universal row-crop tractors Belarus 90/92 fall into the drawbar category 1.4 and
are designed for executing wide range of agricultural works ranging from tillage to
harvesting and transport operations; they can be used in forestry and municipal services,
construction and industry.
The present operating manual contains design features description, brief technical data,
recommendations on the operation and maintenance of tractors Belarus 90/92:
BELARUS -90/92 (4х2) and (4х4) with diesel engine D243.1 (61.0 kW/2200 rpm),
mechanical gearbox with reduction gear, doubling the number of gears, FDA (72-).
Re-equipment and alteration of tractor design without approval of the manufacturing
works are forbidden.
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Introduction Belarus – 90/92 Operating manual
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Accepted abbreviations and legend
CC — clutch coupling
DL —differential lock
FDA — front driving axle
GB — gearbox
GP — glow plug
HLL — hydraulic lift linkage
HPS — Hydrostatic Power Steering
LOHE — liquid-to-oil heat exchanger
M — maintenance
ОЕСD — Organization for Economic Cooperation and Development (ОЕСD)
PCU — preheater control unit
PTO —power take-off shaft
RG — reducing gear
RHA — rear hitch attachment
SB
—
storage battery
SCU — starter control unit
TDACS — tilling depth automatic control system
TDC —top dead center of the engine piston
TSU — towing-hooking device
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Introduction Belarus – 90/92 Operating manual
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International symbols
The manufacturer uses standard International symbols related to the application of
instruments and controls.
Symbols and their meanings are given below.
—See Manual —Control operating direction
—Brake —Fast
—Parking brake —Slowly
—Horn —Forward
—Hazard warning light —Reverse
—Fuel —Battery charging
—Cooling liquid —Cab dome light
—Starting preheater plug —Marker lights
—Engine speed —Turn signal
—Engine oil pressure —Headlights High beam
—Engine coolant temperature —Headlights Low beam
—Off/Stop —Operating headlights
—On/Start —Differential lock
—Gradual change
—Power take-off shaft is
engaged
—Lever — down —Front driving axle is
engaged
—Lever — up —Fan
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Introduction Belarus – 90/92 Operating manual
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—Control valve spool "Lift"
Position —Windshield washer
—Control valve spool "Drop"
Position —Windshield wiper
—Control valve spool "Float"
Position —Rear screen wiper
—Oil pressure in gearbox —Tractor trailer turn signal
—Air pressure on pneumatic
system —Oil pressure in HPS
—Air filter clogging
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