Belarus 80.1 Series Operation manual

OPERATION AND SERVICE MANUAL
BELARUS SERIES 80.1/80.2/82.1/82.2/82Р
Eighth edition, revised and enlarged
Publication No.
Number of copies pcs.
Language –English
Released for print

ATTENTION! IMPORTANT!
1. Make a thorough study of this Manual before operating a new tractor and follow the
instructions given therein.
2. Use season-specific diesel fuels as specified in this Manual.
3. DO NOT run the diesel-engine in idling for more than 15 minutes.
4. Keep in mind that diesel-start-up is only possible with the gearbox lever in the
extreme left-hand position (i.e. engagement position I or gear range position II).
5. When operating the tractor without using the rear P.T.O., set the driving pin of the
P.T.O. independent two-speed drive to position I (540 r.p.m.), the lever of the P.T.O.
independent synchromesh drive —to its neutral (midposition), and the control lever —to
its "P.T.O. Disengaged" position (refer to Section «Controls»).
6. Rear P.T.O. syncronized drive should be used at speeds not exceeding 8 km/h.
Otherwise, the tractor power train may suffer severe damages.
7. Run the tractor in 9th gear, with the higher gear range (range II) engaged, only.
8. A one-man seat is installed in the tractor’s cab; only operator should be in the cab.
An additional passenger seat (option) can be installed on request.
9. Remove sealing film or cut off bosses from polyethylene plugs on new storage
batteries.
10. DO NOT run the tractor with the transmission clutch engaged in full or partially.
11. When starting to move the tractor, first see to it that the parking brake is
disengaged.
12. When operating the tractor without universal-joint shafts, set the FDA selector
handle to the «force-engaged» position.
13. DO NOT operate the tractor in closed spaces, with lack of sufficient ventilation
(interchange of air). Breathing the machine exhaust gases canharm or cause death.
14. NEVER tow tractors «Belarus» 82.1/82.2/82P with the front driving wheels raised
above the ground. Violation of this rule can result in breakdown of the FDA drive
and/or prevalence of emergency conditions.
15. DO NOT lift the tractor front end Запрещается поднимать переднюю часть
трактора за передний буксир, который используйте только для буксировки.
16. NEVER start the diesel-engine and/or work on the tractor without storage batteries
installed.
17. Tow or push start of the tractor diesel-engine may only be admitted as a last resort,
lest intensive wear of diesel-engine parts should result.
18. Since Manufacturer, Production Enterprise «Minsk Tractor Works», pursues a policy
of constant improvement of products, the design of, and/or operating instructions
for, certain tractor assembly units and parts may incorporate modifications which
have not been introduced in this Manual.

Section 1. Introduction
2
1. INTRODUCTION
The Operation and Service Manual is
intended for operators and engineering
and technical staff dealing with operation
and maintenance of tractors «Belarus»
80.1/80.2/82.1/82.2/82Р. The Manual
contains general description and
specifications of tractors, operating and
maintenance rules.
Long-term and reliable operation of the
«Belarus» tractors can be ensured,
subject to their correct handling and
timely maintenance.
Before using the tractor for the first time,
read the present Manual through,
understand and strictly follow the
recommendations given therein.
1.1. ABBREVIATIONS AND
CONVENTIONAL SYMBOLS USED
•SB —Storage Batteries; (АКБ);
•ADL —Rear Axle Automatic
Differential Lock; (АБД);
•TDC —Top Dead Center; (ВМТ);
•P.T.O. —Power Take-off Shaft;
(ВОМ)
•HSCU —Hydrostatic Steering Control
Unit; (ГОРУ);
•HSB —Hydraulic Steering Booster;
(ГУР);
•SPTA —Spare Parts, Tools and
Accessories; —(ЗИП);
•GB —(Speed) Gearbox; (КП);
•FDA —Front Driving Axle; (ПВМ);
•SMS —Seasonal Maintenance
Service; (СТО)
•HDC —Haul-and-Draw Coupler; …
(ТСУ)
•MP-1, MP-2 and MP-3 —Maintenance
Procedure No. 1, No. 2 and No. 3,
respectively; (ТО №1,№2, №3)
•HDC —Haul-and-Draw Coupler;
(ТСУ);
•UC —Unitized Cab; …………… (УК);
•ETH—Electric Torch Pre-Heater
of Diesel-Engine; (ЭФП)
•RHL—Rear Hitch Linkage. (ЗНУ)
Tractor Component Nos.
Manufacturer’s nameplate with tractor
and diesel-engine serial Nos. indicated
MINSK TRACTOR WORKS
BELARUS
Tractor No. Weight
Engine No. Year manufactured
MADE IN BELARUS

Belarus 80.1/80.2/82.1/82.2/82Р/82Р—Operation and Service Manual
Section 1. Introduction
3
Tractor Serial No. is duplicated on the on
the front part of the right-hand
sidemember (or on the right-hand plate
of the front counterweights).
Diesel-engine Serial No. is duplicated on
the manufacturer’s nameplate attached
to the cylinder block, on the right-hand
side).
Clutch No. (on the clutch housing, to the
left).
Gearbox No. (on the GB housing, to the
left).

Section 1. Introduction
4
Transmission No. (on the rear axle
housing, in the rear).
Front driving axle (on the FDA right-hand
housing, at the front).
Cab serial number

Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
Section 2.General Description and Technical Characteristics
5
2. GENERAL DESCRIPTION AND TECHNICAL CHARACTERISTICS
OF TRACTORS
Tractors Belarus are designed to perform
a variety of farm jobs, in combination
with different mounted, semi-mounted
and trailer-type machinery and imple-
ments.
Besides, tractors can be assigned to ful-
fill heavy-duty works when ganged up
with earthmoving, shovel dredging, load-
ing, post-hole digging implements; also,
they can be used on transport missions
and for driving various stationary farm
outfits.
Tractor Belarus 82Рis designed for an all-
round mechanization of growing rice and
rotation of companion crops.
All the technical facilities to be used in
combination with Belarus tractors should
be agreed with the Production Associa-
tion «Minsk Tractor Works» (PA MTW).
2.1. TRACTOR DESIGN AND CON-
STRUCTION IN BRIEF
Wheeled tractors Belarus 80.1 (see
Fig. 1), Belarus 80.2, Belarus 82.1
(рис. 2), and Belarus 82.2 are multi-
purpose agricultural machines, Class 1,4
tf (14 kN). These tractors differ from one
another by the type of running gear: Bel-
arus 80.1/80.2 –with one driving axle,
Belarus 82.1/82.2 –with two driving ax-
les. The tractors are of a semi-frame
construction. Their skeleton consists of a
semi-frame, housings of the clutch,
change-speed gearbox and rear axle.
The diesel-engine forepart is fastened on
the front beam, while its aft-part is rigidly
connected to the transmission clutch
housing.
Index .2 means a modernized version of
the respective model, wherein one or
several updated assemblies or units are
installed, for example:
•the front driving axle with planet-and-
spur reducing gearboxes (on tractors
Belarus–82.2);
•bonnet, cab roof, cab mudguards of a
modified design (on tractors Belarus
80.2/82.2).
Tractor Power Train incorporates a clutch,
superreducer and speed gearbox, rear axle
with automatic differential lock-up, and rear
P.T.O. shaft with two-speed independent
and synchronized drives. Tractors with two
driving axles are equipped with a front driv-
ing axle (FDA) and drives —a transfer box,
intermediate and front universaljoint shafts,
and an intermediate bearing.
The Tractor Steering Control can be of
hydromechanical type (with a HSB body)
or hydrostatic steering control type, with a
metering pump (HSCU). The hydrome-
chanical control outfit consists of a worm,
quadrant and the hydraulic steering
booster (HSB). The hydrostatic steering
control unit (HSCU) incorporates a
gerotor-type metering pump which is in-
stalled in the steering column on the front
cab wall, diesel-engine driven feed gear-
pump, a hydraulic cylinder located in the
steering trapezoid of the front driving axle
(tractors Belarus 82.1/82.2) or tractor fore
(non driving) axle (Belarus 80.1/80.2).
The HSCU is fed with oil from the hydrau-
lic hitch linkage system tank.
Tractors with installed HSCU unit feature
a hydraulic drive of the rear-axle differen-
tial lock-up unit, whose control cock is
located under the slanted footboard of the
cab. Locking action is effected by press-
ing the pedal located to the left of the
service brake pedals.
The FDA Drive is effected from the speed-
change GB to ensure synchronized rotation
of the front and rear wheels in any gear se-
lected. The front driving axle is pivoted to
the fore beam, thus, ensuring its free rolling
motions. Provision is made for stepless ad-
justment of the front (for tractors equipped
with a HSB) and rear wheels track. To im-
plove tyre traction performance, as well as
tractor steerability, additional counter-
weights can be mounted on the fore-beam
totaling to 220 or 510 кг.

Section 2.General Description and Technical Characteristics
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
6
Fig. 1. Tractor «Belarus» 80.1
Fig. 2. Tractor «Belarus» 82.1

Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
Section 2. General description and technical characteristics
7
The tractor Belarus 82 P, intended for
work on rice-growing fields, features in-
creased ground clearance and, also, by
a modified propulsion gear –wide cross-
section low-pressure tyres, with well-
developed (scalloped) lugs and low-
profile tread pattern. An increased
ground clearance is achieved through
installation of an additional hub drive, as
well as the use of tyres of larger diame-
ters. The rice-field tractor is equipped
with a FDA control and parking brake in-
terlocking mechanism.
The Tractor Hitch Linkage System in-
corporates a hydraulic system and a rear
hitch linkage. The hydraulic system com-
prises an oil pump, distributor, draft control,
rear and external hydraulic cylinders. Trac-
tor may be shipped as equipped with a
draft (position) control system or without
this system.
The Rear Hitch Linkage is a four-link
mechanism, with length-adjustable drop
links.
A RHL fixing mechanism is provided to
hold mounted implements at the extreme
upper position on transport missions.
When running with trailed machines, a
cross-bar with a hitch yoke can be used,
while on transport missions —install a
towing arrangement with a self coupling
device and a hydraulic pick-up hook.
Трактор оборудован пневматической
системой управления тормозами при-
цепов с пневматическим или гидрав-
лическим приводом тормозов.
Electrical Equipment —d.c., 12 V rated
voltage.
Tractor (Unitized) Cab is a safety sealed
frame-and-panel structure, equipped with a
single torsion seat, adjustable to operator’s
height and weight. An additional seat (op-
tion) can be installed. Cab windows are
safety heat-absorbing monolithic glass. The
cab is furnished with a heating and air-
ventilation system, a dome light, windscreen
wipers, sun visor, rear-view mirror. Natural
ventilation of the cab is achieved through
opened sunroof, rear and side windows.
Provision is made for the change of angle of
the steering wheel column within 15 deg., as
a matter of convenience when entering and
leaving the cab or operating the tractor, as
well as for height adjustment within 100 mm.
Also provided is a three-step sideboard and
handrails.
Installation of a unitized cab is paralleled
with installation of a small-size cab on cer-
tain tractor batches, against a separate or-
der.
The diesel-engine cover is attached to the
radiator grille facing frame by hinges; in its
open position it is fixed with an arresting
catch.
On a separate order, the tractor may be
supplied with optional extras: a drive pul-
ley, side P.T.O., rear P.T.O. shaft replace-
able tail-end (21 splines), reverse-reducer,
additional counterweights, P.T.O.-2 tail-end
guard, wheels with 18,4L-30; 9,5-42 tyres,
starting pre-heater, automatic coupler СА-
1, hydraulic pick-up hook (ТСУ-2), pneu-
matic adapter, a cross-bar of the coupling
device (ТСУ-1-Ж), device ТСУ-З-К(haul-
and-draw coupler arrangement), break-
away couplings with bracket, coupling hos-
es, left-hand adjustable drop link, auxiliary
spacer-ring piece for mounting rear
wheels, first aid kit, additional seat, and
others. Besides, the tractor can be
equipped with a travel speed superreducer
which is purchased separately by the user,
on his own. Also, the tractor should be
equipped with a gearbox suitable for instal-
lation of the speed superreducer.
The left-hand cab door can be locked. To
open thedoor-lock from the outside:
•insert a provided key 1 (Fig. 2а) into
the slot in the barrel 2 of the handle;
A synchronized reverse-reducer is installed at
the Manufacturing Works (option), instead of a
downshift reducing gear box, and help quickly
reverse the tractor in any gear (ir= -1,07).

Section 2. General description and technical characteristics
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
8
• turn the key to the «Open» position,
without depressing the barrel, and open
the door.
To close and latch the door, turn the key
to the «Closed» position, without de-
pressing the barrel.
Fig. 2а.
2.2. BASIC SPECIFICATIONS
Tractor Overall Dimensions
In Figure: Б= B; В= C; Г= D; Д= E; Е= F
Description
80.1
80.2
82.1 (с ГУР)
82.2
82 Р
A
Length, mm:
Total
4120
4120
4120
4120
4120
w/o load
3840
3840
3930
3970
4020
over wheels
3650
3650
3740
3820
3810
B
Width, mm
1970
1970
1970
1970
2370
C
Height to cab top, mm
2780
2800
2800
2820
3030
D
Wheelbase, mm
2390
2390
2450
2440
2450
E
Rear wheeltrack, mm
1400/2100
1400/2100
1350/2050*
1500/2100
1900
F
Front wheeltrack, mm
1450/1850
1450/1850
1430/1990
1420/2000
1900
G
Ground clearance, mm
465
465
465
465
715
* 1410/1970 mm - for tractor Belarus 82.1 equipped with a hydrostatic steering control
Unit (HSCU).

Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
Section 2. General description and technical characteristics
9
Table 1
Description
Unit of
meas-
urement
Value
GENERAL DATA
Tractor type
—
Wheeled, universal, Class 1,4 tf
Tractor make
—
Belarus
Tractor model
—
Belarus 80.1/80.2 Belarus 82Р
Belarus 82.1/82.2
Rated speed with downshift reducing gear
disengaged, in:
1st gear
km/h
2,50 2,71
2nd gear
km/h
4,26 4,61
3rd gear
km/h
7,25 7,84
4th gear
km/h
8,90 9,63
5th gear
km/h
10,54 11,41
6th gear
km/h
12,34 13,34
7th gear
km/h
15,16 16,40
8th gear
km/h
17,95 19,40
9th gear
km/h
33,39 —
Reverse I
km/h
5,27 5,69
Reverse II
km/h
8,97 9,71
Rated speed with downshift reducing gear
engaged, in:
1st gear
km/h
1,89 2,05
2nd gear
km/h
3,22 3,49
3rd gear
km/h
5,48 5,93
4th gear
km/h
6,73 7,28
5th gear
km/h
7,97 8,63
6th gear
km/h
9,33 10,10
7th gear
km/h
11,47 12,40
8th gear
km/h
13,58 14,69
9th gear
km/h
25,25 27,33
Reverse I
km/h
3,98 4,31
Reverse II
km/h
6,78 7,34
Least turning radius between kerbs, 1400 mm
wheeltrack, with the inner rear wheel braked
slightly:
Belarus 80.1
m
3,8
Belarus 82.1/82.2
m
4,1
Belarus 82Р
m
4,3

Section 2. General description and technical characteristics
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
10
Table 1, continued
Description
Unit of meas-
urement
Value
Maximum weight of towed trailer (on paved
and unsurfaced roads of average quality)
kg
12000
Weight of tractor:
running:
Belarus 80.1
kg
3770
Belarus 80.2
kg
3770
Belarus 82.1
kg
4000
Belarus 82.2
kg
4100 ± 100
Belarus 82Р
kg
4420 ± 120
as shipped ex-works:
Belarus 80.1
kg
3620 ± 100
Belarus 80.2
kg
3620 ± 100
Belarus 82.1
kg
3850 ± 100
Belarus 82.2
kg
3950 ± 100
Belarus 82Р
kg
4395 ± 120
Angles of gradientа(downgrade) for tractor
on dry ground without turf cover:
w/o trailer
deg.
20
w/trailer
deg.
12
Fording:
Belarus 80.1/82.1/82.2
m
0,85
Belarus 82Р
m
1,0
Temperature limits permissible for tractor
operation
°С
± 40
DIESEL-ENGINE
Type
—
Four-stroke, with (fuel) direct injection diesel-
engine
Model designation
—
Д-243
Power rating
h.p.
(kW)
78+5
(57,4+3,7)
Crankshaft rated rotational speed
r.p.m.
2200
Fuel injection advance angle to diesel-
engine piston TDC (determined by meniscus
method)
deg.
20±1
Number of cylinders
pcs
4
Cylinder diameter
mm
110
Piston stroke
mm
125
Compression ratio
—
16
Cylinder swept volume
l
4,75
Firing sequence
—
1-3-4-2

Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
Section 2. General description and technical characteristics
11
Table 1, continued
Description
Unit of
meas-
urement
Value
Cooling system
—
Fluid, closed, with coolant forced circulation
Lubrication system
—
Combination type, with oil radiator
Fuel pump насос
Type
—
Four-spool, in-line, with booster pump
Make
—
4УТНИ
Speed governor
—
Mechanical, all-speed, with fuel charge corrector
Injector nozzle
—
17.1112010-10, 171.1112010-01
Fuel injection pressure
kgf/cm2
(MPa)
220 –228
(21,6 –22,4)
Air cleaner
—
Combination type, with dry centrifugal and iner-
tia-contact oil bath cleaning
Starting system
Electric starter, electric torch pre-heater
Weight of dry diesel-engine, less clutch
Kg
430
Fuels and Coolants To Be Used
Fuel grade:
Diesel fuel, main:
in summer –grade Л-0,2-40 or Л-0,2-62 GOST 305-82, of first and A quality;
in winter –grade З-0,2-35 or З-0,2-45 GOST 305-82, of first and A quality.
Diesel fuel, equivalent:
in summer –grade Л-0,5-40 or Л-0,5-62 GOST 305-82;
in winter –grade З-0,5-35 or З-0,5-45 GOST 305-82.
At -50°С:
main –grade А-0,2 GOST 305-82, of first and A quality;
equivalent –grade А-0,4 GOST 305-82.
Coolant:
main –ОЖ-40 или ОЖ-65 GOST 28084-89;
equivalent –Tosol А40Мor Tosol А65МStd. Specs. ТУ 6-57-48-91.
POWER TRANSMISSION
Clutch
—
Friction, single dry plate, spring-loaded type
Downshift reducing gear
—
Two pairs of spur gears, doubling the number
of gears
Gearbox
—
Mechanical type, 9F+2R, multiple-speed slid-
ing gearbox

Section 2. General description and technical characteristics
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
12
Table 1, continued
Description
Unit of
meas-
urement
Value
Number of transmission gears:
Forward
—
18
Reverse
—
4
Belarus 82Р
Forward
—
17
Reverse
—
4
Main drive
—
A pair of spiral bevel gears
Rear axle differential
—
Bevel, with four pinions
Rear axle differential lock-up mechanism
—
Friction clutch, sensor controlled
Final drives
—
Spur gears
Auxiliary hub transmission reducing gearbox
on rear axle:
Belarus 82Р
—
Three spur gears
Brakes
—
Dry disk-type
Parking brake
—
Dry disk-type, independent
FRAMEWORK, RUNNING GEAR
Tractor framework
—
Semi-frame type
Propulsion gear type
Belarus 80.
—
Wheels on pneumatic tyres; rear driving wheels,
front directive wheels
Belarus 82.1, Belarus 82.2,
Belarus 82Р
—
Wheels on pneumatic tyres; rear driving wheels,
front driving anddirective wheels
Tyres standard sizes:
Front wheels:
Belarus 80.1
inch
9-20
Belarus 82.1
inch
11,2-20
Belarus 82.2
inch
360/70R24
Belarus 82Р
inch
16,0-20
Rear wheels колес:
Belarus 80.1
inch
15,5R38
Belarus 82.1
inch
15,5R38
Belarus 82.2
inch
18,4R34 (Ф-11)
Belarus 82Р
inch
18,4R34 (Ф-44)

Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
Section 2. General description and technical characteristics
13
Table 1, continued
Description
Unit of
meas-
urement
Value
Inflation pressure in tyres (depending on load)
Front wheels:
Belarus 80.1/80.2
kgf/cm2
(MPa)
1,2 –2,6
(0,12 –0,26)
Belarus 82.1
kgf/cm2
(MPa)
1,0 –2,1
(0,10 –0,21)
Belarus 82.2
kgf/cm2
(MPa)
0,8-1,6
(0,08-0,16)
Belarus 82Р
kgf/cm2
(MPa)
0,8 –1,7
(0,08 –0,17)
Rear wheels
kgf/cm2
(MPa)
1,0 –1,8
(0,10 –0,18)
Rear Wheels, tractor Belarus 82Р
kgf/cm2
(MPa)
1,0 –1,4
(0,10 –0,14)
HYDRAULIC STEERING BOOSTER (HSB)
Hydraulic booster type
—
Hydromechanical
Steering control mechanism
—
Worm, spiral gear quadrant and HSB
Pump type
—
Gear-type НШ10-В-3-Л
Pump output
l/min
21
Maximum working pressure in the system:
Belarus 80.1/82.1
kgf/cm2
(MPa)
90–0,5
(9,0–0,05)
Belarus 82Р
kgf/cm2
(MPa)
100 ± 5,0
(10 ± 0,5)
HYDROSTATIC STEERING CONTROL UNIT WITH A CYLINDER IN THE STEERING TRAPEZOID
Metering pump
—
Gerotor, with delivery constant 100 cm3/rev. (160
cm3/rev.)*
Safety valve working pressure, to be tuned to
kgf/cm2
(MPa)
140+15
(14+1,5)
Impact valve working pressure, to be tuned to
kgf/cm2
(MPa)
200+20
(20+2,0)
Feed pump
—
Pump deliver 21 l/min (28 l/min)*
Turn mechanism
—
Double-acting hydraulic cylinder
Cylinder diameter
mm
50 (63)*
Rod diameter
mm
25 (30)*
Rod distance
mm
200
Rear axle differential lock-up cock
—
Spool-type
Working pressure of reducing valve, to be tuned
to
kgf/cm2
(MPa)
11,0 ± 2,0
(1,10 ± 0,20)
__________________________________________________________
* With FDA equipped with planet-and-spur reducing gearboxes.

Section 2. General description and technical characteristics
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
14
Table 1, continued
Description
Unit of
meas-
urement
Value
HYDRAULIC LIFT SYSTEM
Type of hydraulic system
—
Universal, sectionalized-modular system
Давление срабатывания предохрани-
тельного клапана
kgс/см2
(МПа)
200–20
(20–2,0)
Номинальное рабочее давление в систе-
ме
kgс/см2
(МПа)
160
(16)
Pump
—
Gear-type НШ32А-3 or НШ32М-3, clockwise
rotation
Pump drive
—
From diesel-engine through P.T.O. drive pinions
Pump delivery, not less than
l/min
45
Distributor
—
Золотниково-клапанный, Р80-3/4-222/111
для тракторов с силовым регулятором, Р80-
3/1-222 для тракторов без силового регуля-
тора
Cylinder
—
Double-action Ц100х200-3
Rear lift system capacity at 610 mm from
the hitch axis, with drop links at additional
holes, not less than
kN(kgf)
18 (1800)
Draft (position) control
—
Automatic, with movable operable sleeve and
follow-up spool (sliding valve)
ELECTRICAL EQUIPMENT, CONTROL AND MEASURING INSTRUMENTS
Система проводки
—
Single-wire, supply source negative terminal is
connected to “frame”
Circuit rated voltage
В
12
Current source
—
1150 W a.c. alternator, with a built-in integrat-
ed rectifier-regulator, two 12-V, 88 A•h storage
batteries, connected in parallel.
Lightening and light warning system
—
Two headlights of a “European Beam” type,
with passing and driving beams; working flood-
lights (two front and two rear) to illuminate the
work area; front two-section lights to indicate
overall dimensions and turn; tail three-section
lights to indicate the direction of turning, to sig-
nal braking (stop) and overall dimensions; a
number-plate light, light-reflectors; warning
light clusters signaling direction indicators are
ON, hand parking brake is applied; cab dome
light is ON; tractor-and-trailer lights (three
pieces).

Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
Section 2. General description and technical characteristics
15
Table 1, continued
Description
Unit of
meas-
urement
Value
System of emergency audible signaling (for
tractors equipped with an instrument cluster)
Buzzer (when oil pressure drops below the
permissible limit or coolant temperature rises
above the permissible limit)/
Control and measuring instruments
Oil pressure gauge in the diesel-engine lubri-
cation system;
Air pressure gauge in the pneumatic system;
Diesel-engine coolant gauge;
Voltage indicator;
Fuel level indicator;
Electric tachospeedometer with a built-in die-
sel-engine motometer in astronomic time units.
It is possible to install an instrument cluster.
Warning lights: air-cleaner blocking, emergency
drop in oil pressure in diesel-engine, HSCU, air-
pressure in the pneumatic system, emergency
coolant temperature in diesel-engine, glower
plugs operation control.
Horn
Without funnel
Plug-in socket to connect trailer’s electrical
equipment and inspection lamp
Combination type
Heaterfanelectricmotor
Power 90 W
Electric wipers
frontshield
Pantographic, single-brush
rear screen
Single-arm, singlebrush
Frontshield washer
Single spray-nozzle
REAR POWER TAKE-OFF SHAFT
Drive
—
IndependentI, independentII, synchronized
P.T.O. shaft rotational speed, with the drive
position:
independent I
r.p.m.
540
independent II
r.p.m.
1000
synchronized:
Belarus 80.1
Belarus 82.1/82.2
rev./m
travel
distance
3,5
Belarus 82Р
rev./m
travel
distance
3,6
Replaceable tail-end, number of splines
—
8 and 21

Section 2. General description and technical characteristics
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
16
Table 1, continued
Description
Unit of
meas-
urement
Value
REAR HITCH LINKAGE FIXING MECHANISM
Type
—
Mechanical
TRAILER BRAKES CONTROL DRIVE
Type
—
Pneumatic, single-line, interlocked with tractor
brakes
Pneumatic system pressure maintained by a
regulator
kgf/cm2
(MPa)
from 6,5 to 8,0
(from 0,65 to 0,80)
Pressure in the pneumatic system limited by a
relief valve
kgf/cm2
(MPa)
8,5 –10,0
(0,85 –1,00)
OPTIONAL EXTRAS (DELIVERED ON REQUEST AT EXTRA PRICE)
Drive pulley:
•pulley mechanism
—
Bevel reduction gearbox
•diameter
mm
300
•width
mm
200
•drive
—
From rear P.T.O. shaft
Pulley rotational speed, with control levers posi-
tion:
independent I
r.p.m.
859
independent II
r.p.m.
1590
Side power take-off shaft:
•drive
—
Dependent on the gearbox
Rotational speed at rated diesel-engine duty:
•w/o downshift reducing gearing
r.p.m.
754
•with downshift reducing gearing
r.p.m.
570
Wheels with tyres:
tyre type –rear
—
Pneumatic, low-pressure
Purpose
—
18,4R30 or 18,4L–30 (18,4/78-30) for road-building
and other specialized operations.
9,5–42 for row-crop jobs in narrow row spacing;
16,9R38 for row-crop jobs, larger-section
Haul-and-draw arrangement ТСУ-3К
hook jaw width
mm
48
Position of towing hook relative ground:
• position I
mm
775
• положение II
mm
950
Haul-and-draw arrangement ТСУ-1Ж
—
To gang up with trailer-type machinery
Vertical load on hitch yoke, not more than
kgf (кN)
650 (6,5)
Possible displacement of hitch point
in horizontal plane, to either side from midposition
mm
up to 160 mm, at 80-mm intervals
in vertical plane from ground
mm
200 –500 (steplessly)
For tractor Belarus 82Р
mm
455 –755 (steplessly)

Section 2. General description and technical characteristics
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
8
Table 1, continued
Description
Unit of
meas-
urement
Value
Hydraulic hook (device ТСУ-2)
Type
—
Rigid, with mechanical fixing in transport posi-
tion, controlled by the tractor hydraulic system
Vertical trailer-induced load on the hook, not
more than
kgf (kN)
1400 (14)
Nominal distance when in transport position,
from hook axis:
• to P.T.O. shaft axis
mm
217
• to P.T.O. shaft end-face
mm
160
Hook jaw
mm
55
Trailer pole loop inner diameter
mm
70
Automatic coupler
Type
—
СА-1
Break-away couplings in assy with bracket
(purpose)
—
To protect hoses rupture under axial forces
applied.
Coupling hoses (purpose)
—
To couple hydraulic system of the tractor and
that of agricultural machines.
Travel speed superreducer
—
Mechanical type МХУ-0,5; hydromechanical type
ГХУ-0,5 (to be provided by the user)
Starting pre-heater
—
Steam-liquid type ПЖБ-200Г
Additional counterweights, front-mounted
pcs
10
• weight of one counterweight
kg
20 or 45
Pneumoadaptor
—
For driving trailer hydraulic brakes.
Rear P.T.O. shaft replaceable tail-end
Rear P.T.O. taol-enf guard
Auxiliary spacer-ring piece for rear wheel twin-
ning
FRONT DRIVING AXLE FOR TRACTORS МТW-82.1/82.2, МТW-82Р
Drive
—
From transfer box, by two propeller shaft
through an intermediate bearing.
Main drive
—
A pair of bevel gears, with spiral teeth
Differential
—
Bevel gearing, self-locking, with a differential
spider and friction clutches.
Final drives
—
Wheel-hub transmission with two bevel gear
pairs *)
Propeller shafts
—
Universal joints, splined to the intermediate
bearing.
Transfer box
—
Reducing gearing with spur gears and a free-
wheeling clutch.
Freewheeling clutch lock-up and clutch dis-
engagement mechanism
—
Movable clutch gear
Intermediate bearing
—
With two sliding flanges and a safety clutch.
____________________________________________________________________
*)Epicyclic spur reducing gearboxes of wheel-hub transmissions –for tractors Belarus 82.2.

Section 3. Safety Requirements
Belarus 80.1/80.2/82.1/82.2/82Р—Operation and Service Manual
18
3. SAFETY REQUIREMENTS
3.1. GENERAL PROVISIONS
3.1.1. Close observance of safety re-
quirements ensures longer use-
ful life and safe operation of the
tractor.
3.1.2. 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 run the tractor.
ATTENTION!
3.1.3. The shift time utilization factor
should not exceed 0,7. It means
that the shift time consists of the
time of tractor operation proper
plus the time for daily (intershift)
maintenance, preparation and
termination of works, tunning-up
and adjustment, removing trou-
bles detected, idle trips to opera-
tion sites, and time for rest.
3.2. INSTRUCTIONS FOR TRANS-
PORTATION AND DE-PRESERVATION
3.2.1. During tractor transportation and
handling, be sure to follow the
requirements specified under
subsection 6.9.14.
3.2.2. On depreservation of the tractor
an/or auxiliary equipment, follow
fire prevention instructions, as well
as sanitary requirements when
dealing with chemical agents and
goods, cleaning cloth, rag wastes
and oiled paper.
3.3. REQUIREMENTS ON TRACTOR
OPERABLE CONDITION
3.3.1. The tractor should be run in
properly, in accordance with the
instructions under 5.3.
3.3.2. The tractor should have no miss-
ing parts and serviceable.
3.3.3. 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 (the lock-
ing mechanism of the GB 9th
gear, rear P.T.O. enclosure, and
others).
3.3.4. 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.
3.3.5. Tractor controls should demon-
strate positive locking in their
operative positions.
3.3.6. No leaks of electrolyte, water,
fuel and/or oil can be admitted.
3.4. SAFETY REGULATIONS WHEN
RUNNING THE TRACTOR
3.4.1. DO NOT carry passengers.
(When the tractor is equipped
with an unitized cab, a passen-
ger in the machine is admissible,
if an additional seat is installed).
3.4.2. NEVER work on a tractor with
defective measuring and/or con-
trol devices and gauges.
3.4.3. DO NOT admit smoking of the
diesel-engine or substantial drop
in r.p.m. due to overload.
3.4.4. On emergency and/or excessive
increase in diesel-engine crank-
shaft r.p.m., cut off fuel feed im-
mediately and pull the diesel-
engine emergency stop knob to-
wards yourself.
3.4.5. Independent drive of the rear
P.T.O. should be engaged only
on an out-of-operation diesel-
engine; while the synchronous
drive —when the transmission
clutch is disengaged.