Belarus BELARUS-1523 User manual

BELARUS
1523/1523В
1523.3/1523В.3
1523 – 0000010 РЭ
OPERATING MANUAL
2009

The Operating Manual has been compiled by engineer УКЭР-1, M.V.Gutko with the
participation of the leading specialists of the УКЭР-1 of the Minsk Tractor Works
Republican Unitary Enterprise
Editor-in-chief: Director of the Scientific Research Centre
Chief Designer I.N.Uss
Supervisor for the Issue: Chief of КБ ЭД, O.N. Natalevich
The Operating Manual provides a brief description of, and specifications for the
BELARUS-1523/1523В/1523.3/1523В.3 tractors manufactured by the Minsk Tractor
Works. The basic rules of operation of the machines are stated and the information for
adjustment and maintenance of them is provided.
The Manual is intended for tractor drivers operating the BELARUS tractors.
In view of the MTW Production Association’s policy of pursuing the constant
improvement of the products manufactured, the design of individual component parts may
be subjected to modifications not covered by this edition. For more details, please, contact
your BELARUS dealer.
© Minsk Tractor Plant Republican Unitary Enterprise, 2009
All rights reserved. No part of this book may be reproduced in any form whatsoever
without written permission of the Minsk Tractor Works Republican Unitary Enterprise.

BELARUS-1523/1523В/1523.3/1523В.3
Table of Contents
TABLE OF CONTENTS
Page
TO THE OPERATORS’ ATTENTION ...................................................................... 3
INTRODUCTION ...................................................................................................... 4
INTERNATIONAL SYMBOLS.................................................................................. 5
SAFETY REQUIREMENTS...................................................................................... 7
BRIEF DESCRIPTION ............................................................................................. 15
TECHNICAL DATA .................................................................................................. 19
DRIVE CONTROLS AND INSTRUMENTATION ..................................................... 27
CONSTRUCTION AND OPERATION...................................................................... 57
Engine ............................................................................................................ 57
Clutch ............................................................................................................ 72
Gearbox ............................................................................................................ 80
Creeper ............................................................................................................ 92
Rear Axle ............................................................................................................ 96
Rear Power Takeoff ............................................................................................. 101
Front Power Takeoff ............................................................................................. 104
Front Driving Axle ................................................................................................. 108
Brakes ............................................................................................................ 119
Pneumatic Actuator of the Trailer Brakes............................................................. 132
Hydrostatic Power Steering .................................................................................. 135
Running Gears. Tractor Wheels ........................................................................... 143
Hydraulic Lift Linkage ........................................................................................... 147
Rear Hitch Linkage............................................................................................... 162
Front Hitch Linkage .............................................................................................. 165
Cab Ventilation and Heating System.................................................................... 166
Cab Heating and Air-Conditioning System ........................................................... 167
Electric Equipment................................................................................................ 172
TRACTOR PRE-OPERATION ................................................................................. 174
AGGREGATING THE TRACTOR WITH AGRICULTURAL MACHINES AND IMPLE-
MENTS ............................................................................................................ 182
TROUBLESHOOTING ............................................................................................. 215
TRACTOR TRANSPORTATION AND TOWING ..................................................... 241
SCHEDULED MAINTENANCE ................................................................................ 242
TRACTOR STORAGE ............................................................................................. 279
APPENDICES .......................................................................................................... 280

BELARUS-1523/1523В/1523.3/1523В.3
Introduction
3
TO THE OPERATORS’ ATTENTION:
1. Prior to proceeding to operation of the tractor, read carefully this Manual and strictly
follow all the instructions related to operation and maintenance of the tractor.
2. Be sure to run in the tractor for initial 30 hours. Right up to Maintenance Service 1
(125 h), the diesel-engine loading should not exceed 80 % percent of its power rat-
ing.
3. Your tractor is equipped with a speed-range type transmission gearbox. The ranges
are switched over by means of tooth-type flexible clutches, while the gears within the
range are shifted by means of synchronizers.
To engage a range:
— depress the clutch pedal completely and allow the tractor to come to a standstill;
— then gently, without jerks, select the desired range using the range engage-
ment lever;
— release smoothly the clutch pedal.
To engage a gear:
— depress the clutch pedal completely;
— shift the change-over stick smoothly, without jerks, and hold it in this drawn-in
position until the gear is fully engaged;
— release smoothly the clutch pedal.
While on move, gear-shifting within the range should only be made during transport mis-
sion, running on hard-surfaced or natural, unpaved roads. When a machine-and-tractor
rig is operating off-roads (ploughed fields, peat deposit sites, sandy soils, etc.), NEVER
shift gears because of the inevitable abrupt stopping of the combination. In this case,
negotiate such a terrain in a pre-selected gear. Failure to follow the above instructions
could result in premature wear of gears and tooth-type flexible clutch splines as well as
in synchronizers damage.
IMPORTANT! If, with the clutch pedal completely depressed, changing of ranges and
gears is accompanied by excessive gritting sound, call up your local “Belarus” dealer
office to rectify the problem immediately.
4. Observe the rules of PTO engagement. When engaging and disengaging the PTO,
move the PTO lever smoothly to avoid damage to the shafts, gears and/or PTO tail-
piece.
5. The service and parking brakes should be only adjusted with the tractor placed on a
level ground, with the engine stopped and the rear wheels choked in the front and
the rear to prevent the tractor from accidental displacement.
Re-equipment and/or modification of the tractor without manufacturer’s agree-
ment are prohibited.

BELARUS-1523/1523В/1523.3/1523В.3
Introduction
4
INTRODUCTION
This Manual provides the description of the design and contains the basic technical data
and rules of operation and maintenance of agricultural power-intensive wheeled tractors
BELARUS-1523/1523.3 and BELARUS -1523В/1523В.3 (reversible modified version).
Belarus 1523 tractor is designed in the 4x4 wheel arrangement and can be used for
performing various agricultural works and transport operations with mounted, semi-
mounted, and trailer-type farm machinery and implements attached, for transporting
cargoes and with cargo handling facilities and harvesting machinery complexes as well
as for driving stationary farm machines.
Belarus 1523В tractor of a reversible version is designed for a long-term operation in
the reversal and notable for a reversal control post comprising and additional steering
column, duplicated clutch, brake, and fuel supply controls as well as with a rotatable
operator’s seat for working in both forward and reverse movement.
Belarus 1523.2* and Belarus 1523В.2* tractors:a modified version of the basic model
BELARUS-1523 and BELARUS-1523Вequipped with the Д-260.1S2 engine certified
according to the TIER-2.
Abbreviations and Conventional Symbols Used
ADL
–
Automatic Differential Lock-up System
АБД
DTC
–
(Engine) Turbocharger
ТКР
FDA
–
Fron Driving Axle
ПВМ
FFА
–
Fine Fuel Filter
ФТО
FPTO
–
Front Power Take-Off
ПВОМ
GB
–
Speed Gearbox
КП
HDC
–
Haul-and-Draw Coupler
ТСУ
HLL
–
Hydraulic Lift Linkage
ГНС
HPH
–
Hugh-Pressure Hose
РВД
HSCU
–
Hydrostatic Steering Control Unit
ГОРУ
IMS
–
Inter-Shift Maintenance
ETO
IVR
–
Integral Voltage Regulator
ИРН
MS
–
Maintenance
ТО
MTA
–
Machine-and-Tractor Aggregate
МТА
PTO
–
Power Take-off Shaft
ВОМ
P.T.U.
–
Power Take-Up Shaft
ВПМ
PFE
–
Paper Filter Element
БФЭ
RA DL
–
Rear Axle Differential Lock-up
БД ЗМ
RHL
–
Rear Hitch Linkage
ЗНУ
SB
–
Storage Batteries
АКБ
SPTA
–
Spare Parts, Tools and Accessories
ЗИП
TC
–
Transmission Clutch
МС
TDC
–
Top Dead Centre
ВМТ
UCS
–
Universal Control System for farm machinery
УСК

БЕЛАРУС-1523/1523В/1523.3/1523В.3
International symbols
5
INTERNATIONAL SYMBOLS
The manufacturer uses standard international symbols pertinent to the use of instru-
ments and controls, as follows.
−Refer to Manual
−Controls manipulation
−Brake −Fast
−Parking brake −Slow
−Horn
−Forward
−Fault signalling
−Backward
−Fuel −Storage battery charging
−Cooling fluid, coolant
−Cab dome light
−Engine start-up assisting
devices
−Marker lamps
−Engine rpm −Turn signal
−Oil pressure in engine −Trailer turn signal
−Engine coolant temperature −High beam
−OFF/STOP −Low beam
−ON/START
−Work floodlights
−Gradual change
−Differential lock-up
−Lever – Downwards −PTO shaft engaged
−Lever – Upwards
−Front driving axle engaged
PTO

БЕЛАРУС-1523/1523В/1523.3/1523В.3
International symbols
6
−“Lift” position of the distribu-
tor slide valve
−Fan
−“Drop” position of the dis-
tributor slide valve
−Windscreen washer
−“Float” position of the dis-
tributor slide valve
−Front windscreen wiper
−Oil pressure in the transmis-
sion gearbox
−Rear screen wiper
−Air pressure in the pneu-
matic system
−Oil pressure in the hydro-
static steering control
−Air filter clogged
−Level of braking liquid in the
main cylinder reservoirs
−Diesel start-up (a lamp in
the control lamp unit)

BELARUS-1523/1523В/1523.3/1523В.3
Safety Requirements
7
SAFETY REQUIREMENTS
1.1. GENERAL
1.1.1. Strict observance of the require-
ments ensures safe operation of
the tractor and improves its reli-
ability and durability.
1.1.2. Only persons not younger than
17, holders of a tractor driving li-
cense, who have been briefed on
accident and fire prevention, may
be admitted to operate the trac-
tor.
1.1.3 Prior to operating the tractor,
read carefully the Operator’s
Manual. Insufficient knowledge
of tractor controls and servicing
is a potential of likely accidents.
1.2. SAFETY REQUIREMENTS FOR
TRANSPORTATION AND DE-
PRESERVATION
1.2.1. When transporting and handling
the tractor, follow the require-
ments specified under Section 8.
1.2.2. When performing the depreserva-
tion of the tractor and optional
equipment, follow the fire preven-
tion instructions and sanitary re-
quirements when dealing with
chemicals, rag wastes and oiled
paper.
1.3. REQUIREMENTS FOR TECHNIC-
AL CONDITIONS OF THE TRAC-
TOR
1.3.1. The tractor should be run in, in
accordance with the require-
ments under Subsection 6.5.
The tractor should be completely
outfitted and in good working or-
der.
1.3.2. DO NOT allow dismantling of
design-stipulated protective en-
closures and/or safeguards from
the tractor, as well as other parts
and/or assembly units which af-
fect its safe operation (protective
grille of the fan, rear PTO enclo-
sure, etc.)
1.3.3. The technical condition of the
braking system, steering controls
and running gear should conform
to safety requirements of rele-
vant standards and the present
Manual.
1.3.4. The trailed agricultural machines
and harvest trailers shall be fitted
with a rigid towing coupler which
excludes swaying and/or collid-
ing thereof with the tractor during
the transportation.
1.3.5. The tractor controls shall be pro-
vided with reliable locking in their
operative positions.
1.3.6. Keep all the warning decals on
the tractor clean and readable. If
damaged or lost, replace them
with new ones.
1.3.7. No leaks of electrolyte, water,
fuel and/or oil shall be allowed.
1.3.8. Make proper use of summer-
and winter-grade fuels. Refill the
fuel tank at the close of each
working day to reduce the mois-
ture condensation at night.

BELARUS-1523/1523В/1523.3/1523В.3
Safety requirements
8
1.4. SAFETY REQUIREMENTS FOR
OPERATION OF THE TRACTOR
IMPORTANT! NEVER start up the
diesel- engine from outside the cab,
away from the operator’s work station.
When starting the engine and manipu-
lating with the controls, always be in
the cab and sitting in the driver’s seat.
1.4.1. Prior to starting the engine,
check to see if the parking brake
is engaged, the power take-off
(PTO) lever is in the “Brake” po-
sition, the range changeover and
GB shifting levers – in the “Neu-
tral”. The lever switch of the GB
pump drive should be in the
“Drive from the engine” position.
1.4.2. Prior to getting the tractor mov-
ing, make sure that the reserve
parking brake is disengaged,
give an audible signal to warn
bystanders and persons working
on the trailed machines, then
start moving smoothly. When on
hauling sessions, be sure to use
seat belts (to be supplied on re-
quest).
1.4.3. DO NOT leave a moving tractor.
Prior to leaving the cab, disen-
gage the PTO shaft, stop the en-
gine, apply the parking brake
and take out the starter key.
1.4.4. DO NOT operate the tractor in
closed spaces without adequate
ventilation. Breathing the ex-
haust gases can cause the lethal
outcome!
1.4.5. Should the engine or the steering
controls fail during the work, stop
the tractor immediately. Remem-
ber that when the engine is shut
down, a considerable greater ef-
fort should be applied to the
steering wheel to drive the trac-
tor.
DO NOT work or walk under
raised agricultural attachments.
DO NOT leave the tractor for a
long period of time with the
mounted implement in raised po-
sition.
1.4.6. If the tractor front part lifts off the
ground when heavy machines/
implements are mounted on the
rear hitch linkage, attach ballast
weights to the tractor front bar.
1.4.7. No passenger can be admitted to
the cab during work. (However, a
passenger can only be admitted
when an additional seat is in-
stalled).
1.4.8. DO NOT operate the tractor with
faulty instrumentation.
1.4.9. DO NOT admit smoking exhaust
of the engine or substantial drop
in rpm. due to overload.
1.4.10. In case of emergency and/or ex-
cessive increase in engine
crankshaft rpm, cut off the fuel
feed immediately and pull the
engine emergency stop knob to-
wards yourself.
1.4.11. The independent drive of the
rear PTO shall be only engaged
on an out-of-operation engine;
while the synchronous drive –
when the transmission clutch is
disengaged.
1.4.12. When operating the tractor with-
out using the rear PTO, set the
PTO drive lever and the PTO
control lever in the neutral and
“Brake” position, respectively.
1.4.13. When engaging and disengaging
the PTO, move the PTO lever
smoothly to avoid damage to the
shafts, gears and/or PTO tail-
piece.
1.4.14. On detaching the PTO-driven
machines from the tractor, re-
move the universal-joint drive

BELARUS-1523/1523В/1523.3/1523В.3
Safety Requirements
9
and cover the PTO tail-piece with
a protective hood.
1.4.15. NEVER lower the farm machine
by setting the distributor lever to
the “Forced Drop” position.
1.4.16. Prior to starting the engine, set
the gear shifter and the range
changeover lever to the neutral
position. When starting the en-
gine there shall be nobody in
front of the tractor, under and
behind it as well as between the
tractor and the machine attached
to it.
1.4.17. When hitching or attaching the
agricultural machines or imple-
ments to the tractor, the trailer
hand shall be at a safe distance
until the complete stop of the
tractor. The hitching or attaching
operation should be only started
on the operator’s signal.
1.4.18. Should any malfunction or fault
occur, stop immediately the trac-
tor and eliminate the cause.
1.4.19. When working with the agricul-
tural machines attached to the
tractor, follow additionally the
safety precautions specified for
operating these machines.
1.4.20. Prior to attachment of agricultural
machines to the tractor, make
sure that automatic catches of
the RHL lower and top links are
clean and serviceable. DO NOT
work with catch inner recesses
damaged, clogged up with dirt
and/or foreign particles.
1.4.21. Prior to lifting or lowering an ag-
ricultural implement as well as
when making turns, make sure
that there is no risk of hitting
anybody or running over an ob-
stacle.
1.4.22. When on transport trips and un-
dergoing turns with raised ma-
chine/implement, preliminary set
the PTO control lever to the
“Brake” position, to avoid break-
down to the tractor and/or agri-
cultural machines/implements.
1.4.23. Lower the mounted machine to
its working position or lift it to at-
tain position for transport only
when the tractor is moving for-
ward in a straight line.
1.4.24. The universal-joint shaft trans-
mitting the rotational motion from
the tractor PTO to the aggre-
gated agricultural unit tools shall
be enclosed.
1.4.25. Make sure that any additional
equipment and/or auxiliary de-
vices are properly installed and
intended and approved for use
on your tractor.
Keep in mind that your tractor, if
carelessly or improperly oper-
ated and/or poorly maintained,
can be a serious hazard to the
operator and others. DO NOT
use equipment which is not des-
ignated or authorized for installa-
tion on the tractor.
1.4.26. When machine-and-tractor ag-
gregates are running in a col-
umn, the clearance between
them must be at least 30 m.
1.4.27. When driving on a slippery road
with the ADL engaged, run the
tractor ganged up with imple-
ments at a speed not exceeding
12 km/h.
1.4.28. When driving on slopes, increase
the tractor wheel track to maxi-
mum possible.
1.4.29. Avoid sharp turns when driving
under full load and/or at a high
speed.
1.4.30. Operate the tractor in the twilight
or at night provided the lightning
equipment is serviceable and
switched on.

BELARUS-1523/1523В/1523.3/1523В.3
Safety requirements
10
1.4.31. Any cleaning, lubricating and re-
pair works should be only per-
formed with the engine shut
down and PTO disengaged.
1.4.32. When operating the stationary
PTO-driven equipment, brake
the PTO tail-piece and stop the
engine before leaving the cab.
1.4.33. When working with the PTO or in
close vicinity to rotating compo-
nents, DO NOT wear loose cloth-
ing.
1.4.34. When operating with stationary
PTO-driven machinery, always
engage the parking brake and
chock both sides of the rear
wheels. Make sure that the ma-
chine is reliably secured.
1.4.35. Check to see that the PTO shaft
tail-piece is safely enclosed and,
if the PTO is not used, refit the
PTO tail-piece hood in place.
1.4.36. Use the synchronous PTO
mechanism at low (up to 15
km/h) tractor speeds only. Fail-
ure to do so could cause severe
damages in the PTO drive.
1.4.37. The tractor operation on slopes
is only permitted in daytime, at a
speed not exceeding 10 km/h
and the wheeltrack at least 1800
mm provided the steepness does
not exceed 9°.
1.4.38. When the machine-and-tractor
aggregates are working or pass-
ing in the vicinity of electric
power lines (EPL), the distance
from the top aggregate point to
the lines should not exceed:
Line voltage,
up to, kV 11 20-25
110
154-
220
330-
500
Distance hori-
zontal, m
1.5
2
4
6
9
Distance
vertical, m
1
2
3
4
6
1.4.39. DO NOT work with attached
heavy machines unless the front
ballast weights are installed.
1.4.40. Trailed and semi-trailed agricul-
tural machines should be addi-
tionally connected to the tractor
with using safety chains.
1.5. SAFETY REQUIREMENTS FOR
TRANSPORT SESSIONS AND
TRACTOR TOWING
1.5.1. When performing the transport
works, observe the road regula-
tions adopted in the territory of
the country.
1.5.2. The transport works may be per-
formed by the operators with the
tractor driving experience of not
less than two years who have
passed an examination in the
road regulations.
1.5.3. When using the tractor for per-
forming the transport works:
•increase the tractor wheel track to
at least 1800 мм;
•check the serviceability of the
brakes;
•interlock the brake pedals, check
and, if necessary, adjust the brakes
for simultaneous operation;
•check operation of the parking
brake;
•check the condition of lighting and
audible signalling systems;
•the transport trailers should be fit-
ted with rigid couplers and, besides,
connected to the tractor with using
a safety chain or cable;
•under no circumstances should the
tractor be run downhill with gear
disengaged (by coasting); apply the
same gear both down and uphill;
•if the trailer weight exceeds that of
the total actual weight of the tractor,
it is mandatory that it should be
equipped with independent brakes.
The faster you move and the

BELARUS-1523/1523В/1523.3/1523В.3
Safety Requirements
11
greater the trailed mass, the longer
is the safe stopping distance.
1.5.4. DO NOT stop the tractor on
slopes. If it is necessary to stop,
put the tractor into 1st gear and
apply the parking brake.
1.5.5. Before operating the tractor, turn
on the compressor, check the
condition of the brake pneumatic
drive, air pressure in the pneu-
matic system. Remove the faults
detected.
1.5.6. The trailers to be combined with
the tractor should have a braking
system which is able to ensure:
a) braking the trailer on the run;
b) applying the brake in case of dis-
connection of the trailer from the
tractor;
c) keeping the trailer when parked on
a slope;
d) preventing the trailer from pushing
actions against the tractor in
cases of abrupt changes in speed.
The trailer should be connected to
the tractor with using a safety
chain.
1.5.7. Carrying people in trailers is pro-
hibited.
1.5.8. To avoid tip-over, take care
when running the tractor. Set
speeds safe with respect to the
actual condition of the road sur-
face; especially so, when driving
on a rugged terrain, crossing
ditches, taking a grade and/or
making sharp turns.
1.5.9. The road speed at turns should
not exceed 5 km/h, on a slippery
road – 3 km/h. Ride downhill in
first or second gear. Speeds on
approach paths and passages
should not exceed 10 km/h.
1.5.10. When loading/unloading the
trailer, brake the tractor by apply-
ing the reserve parking brake.
1.5.11. With the HSCU unit out of opera-
tion, the tractor can be towed,
but at a speed of up to 10 km/h,
max., and at a distance not ex-
ceeding 5 km.
1.5.12. Tractors in combination with a
trailer used on public roads
should be run with the “Trac-
tor&Trailer Rig” warning sign il-
luminated, in full conformance
with the Road Regulations.
1.6. SAFETY REQUIREMENTS FOR
MAINTENANCE
1.6.1. All the maintenance operations
shall be carried on a tractor
placed on a level ground, with
the engine shut down, the park-
ing brake applied and the PTO
tail-piece braked.
1.6.2. To lift the tractor, use a jack; af-
ter lifting, put blocks and props
under the frond axle bar, rear
wheels axle shafts or location
parts of the tractor framework.
1.6.3. When using hoisting and trans-
port equipment, observe relevant
safety precautions.
1.6.4. To avoid accidental splash-out of
fuel when refuelling the tractor
using mechanized equipment,
remove the wire gauze filter from
the fuel tank throat. This filter is
to be used for refuelling the trac-
tor by hand, under field condi-
tions, only.
1.6.5. When examining and/or adjust-
ing the parts to be controlled,
make use of a 36 V (max.) in-
spection portable lamp. The
lamp should be protected with
wire screen.
1.6.6. Tools and appliances to be used
in the course of maintenance
should be in good working order,
suitable for their purpose, and
ensure safe performance of the
works.

BELARUS-1523/1523В/1523.3/1523В.3
Safety requirements
12
1.6.7. NEVER inflate the tyres without
monitoring the pressure.
1.6.8. When servicing the storage bat-
teries:
a) keep the skin from contact with
electrolyte;
b) to clean the storage batteries, use
rags soaked in ammonia solution
(ammonium hydroxide);
c) to top up the electrolyte level in
the battery, use only distilled wa-
ter;
d) DO NOT check the state of charge
of the storage battery by short-
circuiting the terminals;
e) DO NOT connect the storage bat-
tery in wrong polarity.
1.6.9. To keep the electronic units from
damage, follow the precautions
as given below:
•do not disconnect the storage bat-
tery (SB) terminals while the engine
is running, since it results in peak
voltage in the charging circuit and
unavoidable damage of diodes and
transistors;
•do not disconnect the electrical cir-
cuit wires until the engine com-
pletely stops and all the electrical
switches are in the OFF position;
•take care not to cause short-
circuiting due to incorrect connec-
tion of wires. Short-circuits or wrong
polarity causes damage to diodes
and transistors;
•DO NOT connect the SB to the sys-
tem of electrical equipment until
terminals and voltage are checked
for proper polarity;
•DO NOT check the availability of
electrical current by “sparking”,
since this causes immediate break-
down of transistors;
•NEVER set the battery disconnect
switch to the OFF position while the
engine is running;
•DO NOT operate the tractor with-
out a storage battery.
1.6.10. The cooling system operates un-
der pressure maintained by a
valve installed in the filler cap. It
is dangerous to remove the cap
on a hot engine. To avoid burns
on your face and hands, take
special care when opening the
radiator filler cap on a hot en-
gine; cover the cap with thick
fabric and put on a glove.
1.6.11. To avoid burns, take special care
when draining coolant or water
from the cooling system, or hot
oil from the engine, hydraulic
system and transmission.
1.6.12. To exclude the explosion risk,
there shall be no sources of na-
ked flame in close proximity to
the engine fuel system and/or
storage batteries.
1.6.13. To install and dismount the en-
gine, use a steel cable fastened
to the eye-bolts provided for the
purpose on the engine.
1.6.14. Any repair works requiring the
electric welding to be done on
the tractor shall be performed
with the battery disconnect
switch turned OFF.
1.6.15. DO NOT make any modifications
to the design or structure of the
tractor or its components, if not
agreed with the Manufacturer.
Otherwise, the tractor will be de-
void of the guarantee privilege.
1.6.16. To exclude any possibility of get-
ting severe injuries, all the ad-
justment operations should be
carried out with the tractor
placed on a flat level ground,
with the engine shut down. Also,
the tractor should be safely
stopped from moving by means
of chocks placed under the rear
wheels on the front and at the
rear.

BELARUS-1523/1523В/1523.3/1523В.3
Safety Requirements
13
1.7. FIRE PREVENTION REQUIRE-
MENTS
1.7.1. The tractor should be provided
with fire-fighting equipment such
as a spade and fire extinguisher.
NEVER operate the tractor with-
out fire-fighting equipment.
1.7.2. NEVER refill the tractor with the
engine running.
1.7.3. DO NOT smoke when refilling
the tractor.
1.7.4. DO NOT fill the fuel tanks com-
pletely. Leave some space for
fuel expansion.
1.7.5. NEVER add gasoline and/or
other mixtures to diesel fuel.
Such combinations may be a
cause of enhanced danger of in-
flammation and/or explosion.
1.7.6. The tractor parking lots, as well
as fuel and lubricant depots
should be ploughed around to
make a strip 3 m wide, and
equipped with fire-fighting
equipment.
1.7.7. Refill the tractor with fuels and
lubricants using mechanized
means, with engine fully
stopped. At night, use a light-up
facility. DO NOT refuel the trac-
tor by means of a bucket.
1.7.8. When performing the repair
works involving electric arc or
gas welding under field condi-
tions, clean the parts and as-
sembly units from vegetable left-
overs.
1.7.9. Keep the manifold and muffler
stack clean from dust, fuel and
straw residue, etc.
1.7.10. DO NOT allow straw to be taken
up by rotating parts of the ma-
chines ganged up with the trac-
tor.
1.7.11. When washing/cleansing the
parts and/or assembly units with
kerosene or petrol, take ade-
quate measures to exclude the
possible inflammation of the
flushing fluid vapours.
1.7.12. NEVER operate the tractor in
fire-hazardous locations, with its
bonnet and other protective de-
vices removed from hot parts of
the engine.
1.7.13. NEVER use naked flame to heat
oil in the engine oil sump, as well
as when refuelling the fuel tanks
or burning out the soiled core of
the radiator.
1.7.14. Whenever a seat of fire is de-
tected, bury the fire with sand,
cover it with tarpaulin, sacking or
any other dense, thick material.
Use a carbon dioxide fire extin-
guisher for the purpose. NEVER
attempt to put out burning fuel
with water.
1.7.15. Keep an eye that easy inflam-
mable materials are well away
from the exhaust manifold and
the muffler.
1.7.16. When harvesting hay and straw
or working in places with higher
fire-hazard, make use of spark
quenchers in the exhaust sys-
tem, in conjunction with a muf-
fler, or as separate facilities.
1.8. SAFETY REQUIREMENTS TO BE
OBSERVED DURING PRESER-
VATION
1.8.1. When putting the tractors for sto-
rage, performing the mainten-
ance during the storage and re-
turn from the storage to opera-
tion, observe the relevant in-
struction of this Section, as well
as safety requirements as per
State Standard (ГОСТ) 9.014-
78.
1.8.2. When stored, the tractor should
be placed on special supports, or
trestle, precluding its capsizing
or spontaneous displacement.

BELARUS-1523/1523В/1523.3/1523В.3
Safety requirements
14
1.9. HYGIENE REQUIREMENTS
1.9.2. The first-aid kit should be com-
pleted with bandages, a bottle of
tincture of iodine, liquid ammo-
nia, borated petrolatum, a jar of
household soda, menthol valer-
ate, and dipyrone.
1.9.3. Make use of natural ventilation of
the cab or the air heating/cooling
unit, as required by operating
conditions.
1.9.4. Fill the thermos with fresh, clean
drinking water every day.
1.9.5. If the period of continuous opera-
tion of the tractor exceeds 2.5
hours within the working shift, it
is necessary to use individual
protective means as per State
Standard (ГОСТ) 12.4.051-87 to
muffle the noise (such as ear
muffs, antiphones).

BELARUS-1523/1523В/1523.3/1523В.3
Brief Description
15
BRIEF DESCRIPTION
The BELARUS 1523/1523.3 agricultural
power-intensive wheeled tractor of the
3.0 tf traction class with the 4x4 wheel-
drive arrangement is intended for per-
forming various jobs with attached
mounted, semi-mounted, trailed machin-
ery and implements, load handling facili-
ties, harvesting complexes, and in run-
ning stationary agricultural machines off
the PTO shaft, as well as in road trans-
port missions in various climatic zones.
The tractor is equipped with a six-
cylinder, turbocharged in-line engine.
The power-train mechanisms: trans-
mission clutch, speed gearbox, rear
axle with a differential lock-up fea-
ture, rear power take-off shaft with
double-reduction (540 and 1000 rpm)
independent and synchronous (3.3 and
6.2 revolutions per meter of travel) are
located immediately after the engine.
Clutch: dry double-disk, closed-type,
with a hydrostatic control drive.
Gearbox: synchromesh, fixed-ratio,
range-type; assures 16 forward speeds
and 8 reverse speeds ∗.
Running Gear: rear driving wheels, front
driving and steerable wheels. Front
wheel tyre dimensions 420/70R24, rear-
wheel tyres – 520/70R38.
Front Driving Axle: portal-type, with
detachable half-axle housings and
spur planetary reduction gearings of
the final drive.
The Steering control of the tractor is a
hydrostatic steering unit consisting of a
gear feeding pump, gerotor-type meter-
ing pump and two differential hydraulic
cylinders that ensures simple and easy
∗24 forward speeds and 12 reverse speeds
optionally.
control of the tractor when performing
various works. The steering control en-
sures the turn of the steerable wheels
and reduces the force to be applied to
the steering wheel in case of change of
the tractor motion direction.
To improve the traction performance
and steerability of the tractor, addi-
tional counterweights can be installed
on the fore bar.
The RHL Control Hydraulic System
with the BOSCH integral block, made
up of a slide-valve distributor to control
external hydraulic cylinders and elec-
tromagnetically controlled regulator
ensures the operation of the tractor cou-
pled with agricultural machinery and im-
plements using the draft, position or
combined control of tool position rela-
tive to the tractor framework, as well
as power take-off to drive tools of the
agricultural machines.
The tractor is equipped with a pneu-
matic system for operating the hydrau-
lically-actuated trailer brakes, and sin-
gle-line and dual-line brake system.
The Tractor Brakes are multiplate ones
with hydrostatic actuator/ They are lo-
cated on driving pinions of the hub
drives.

BELARUS-1523/1523В/1523.3/1523В.3
Brief Description
16
The tractor cab is a cylindrical structure
with a rigid protective framework,
thermo-, noise- and vibration-isolated
featured by the improved interior design,
convex (panoramic) tinted injury-safe
glasses, a sun-protective blind, more
comfortable location of handles on the
side control desk, an additional folding-
back seat and additional rear window.
The cab is fitted with rear-view mirrors,
electrical windscreen and rear-screen
wipers. A frameless door and glued
windscreens assure clear visibility.
The natural ventilation is achieved
through the side and/or rear windows.
The two fuel tanks with the total capacity
of 250 l are located beneath the cab floor
and on the right-hand side of the tractor.
The engine is covered with a tilt-forward
bonnet, with removable side panels.
When open, the engine cover is fixed
with a stay.
On the customer’s order, the tractor can
be equipped with extra options (a RHL
cross-bar, additional seat, auxiliary
spacer-ring member for installing twinned
wheels, PTO-driven front hitch mecha-
nism, etc.)
The BELARUS-1523В/1523В.3 tractors
are equipped with a reversible control sta-
tion, designed for a long-term operation in
the reversal, with agricultural machines at-
tached to the rear hitch linkage.
The BELARUS-1523.3 tractors is a fur-
ther modified version of the basic model
BELARUS-1523 equipped with a Д-260-1S2
engine certified to the 2nd stage of Direc-
tive 2000/25EC.
Serial Numbers of Tractor Components
A nameplate with the tractor and engine
Serial Nos. is fastened in the right-hand
at the rear of the cab. Beneath the
nameplate, there is a plate indicating the
Serial number of the cab.
Минский тракторный завод
Minsk Tractor Works
БЕЛАРУС
BELARUS
№ трактора
Tractor No.
Масса
Weight
№ двигателя
Engine No.
Год выпуска Year of production
ЗРОБЛЕНА У БЕЛАРУСI
MADE IN BELARUS

BELARUS-1523/1523В/1523.3/1523В.3
Brief Description
17
The Serial Number of the tractor is dupli-
cated on the semi-frame right-hand side
member and on the right-hand plate of
the front counterweights.
The Serial Number of the engine is du-
plicated on the manufacturer’s name-
plate attached to the cylinder block, on
the left-hand side.
∗
Минский моторный завод
Minsk Engine Works
ДИЗЕЛЬ
DIESEL ENGINE
заводской №
Serial No.
Serial number of the engine turbocharger
Serial number of the clutch
∗Or Д-260.1S2.

BELARUS-1523/1523В/1523.3/1523В.3
Brief Description
18
The Serial Number of the transmission is
stamped on a plaque of the rear axle
housing, on the right-hand side.
The Serial Number and version of the
FDA with detachable axle-shaft housings
are stamped on the right-hand housing,
at the front of the FDA.

BELARUS-1523/1523В/1523.3/1523В.3
Technical Data
19
TECHNICAL DATA
Description
Unit of
measure-
ment
Value
GENERAL DATA
Tractor type
–
Universal, row-crop
Tractor make
–
BELARUS
Tractor model
–
1523/1523В/1523.3/1523В.3
Calculated speed of movement on the 520/70R38 tyres at the rated engine crankshaft rotational speed:
Forward running in:
(16F+8R)
(24F+12R)
Range
Range
1st gear
km/h
1.74
I
1.7
I
2nd gear
2.44
I
2.3
I
3rd gear
3.35
I
2.9
I
4th gear
4.58
I
3.8
I
5th gear
3.77
II
4.9
I
6th gear
5.29
II
6.3
I
7th gear
7.26
II
3.3
II
8th gear
9.94
II
4.4
II
9th gear
5.70
III
5.7
II
10th gear
7.99
III
7.3
II
11th gear
10.97
III
9.4
II
12th gear
15.01
III
12.2
II
13th gear
12.37
IV
5.1
III
14th gear
17.34
IV
6.7
III
15th gear
23.80
IV
8.8
III
16th gear
32.58
IV
11.3
III
17th gear
14.5
III
18th gear
18.8
III
19th gear
9.8
IV
20th gear
13.0
IV
21st gear
16.9
IV
22nd gear
21.8
IV
23rd gear
28.0
IV
24th gear
36.3
IV
Reversing in:
1st gear
2.73
I
2.5
I
2nd gear
3.83
I
3.2
I
3rd gear
5.26
I
4.1
I
4th gear
7.20
I
5.3
I
5th gear
5.93
II
6.8
I
6th gear
8.31
II
8.9
I
7th gear
11.41
II
4.6
II
8th gear
15.61
II
6.1
II
9th gear
8.0
II
10th gear
10.3
II
11th gear
13.2
II
12th gear
17.1
II