MTZ 1220.3, 1220.1 Operator's Manual
MTZ
1220.1 / 1220.3
1220.1 – 0000010 OM
OPERATOR'S MANUAL
2010
In view of constant upgrading of produced goods, the construction of some units and parts
of tractor may undergo changes which are not reflected in present edition.
Some technical data and illustrations given in this book may differ from those on your tractor. Dimensions and weights are approximate (advisory). For detailed information please
consult your MTZ Dealer.
_______________________________________________________________________
RUE “Minsk Tractor Works”, 2010
All rights reserved. No part of this book may be reproduced in any form without written
permission of RUE “MTW”.
MTZ-1220.1/1220.3 Table of contents
TABLE OF CONTENTS
INTRODUCTION…………………………………………………………………………………... 1
SAFETY REQUIREMENTS……………………………………………………….. B1
GENERAL INFORMATION………………………………………………………………….. C1
OPERATING CONTROLS AND INSTRUMENTS ……... D1
DESCRIPTION AND OPERATION OF TRACTOR CONSTITUENTS……………………. E1
TRACTOR PREPARING FOR OPERATION ……………………………………………... F1
OPERATING INSTRUCTION………………………………………………………………. G1
ADJUSTMENTS ……………………………………………………………………………… H1
COUPLING OF IMPLEMENTS ………………………………………………………………. I1
POSSIBLE FAILURES AND GUIDELINES FOR TROUBLESHOOTING J1
SCHEDULED TECHNICAL MAINTENANCE ……………………………………… K1
TRACTOR TRANSPORTATION AND TOWING ……………………………. L1
TRACTOR STORAGE ……………………………………………………………………. M1
TRACTOR DISPOSAL………………………………………………………………….. N1
ANNEXES
Advisable fuels, oils, lubrication materials for tractors MTZ- -
1220.1/1220.3»……………………………………………………….
An1
Electrical circuit diagram of the DL, FDA and PTO control system of “MTZ
1220.1/1220.3” tractors (with GB 16x8)
An6
Electrical circuit diagram of the DL, FDA, PTO and gearbox reduction unit control sys-
tem of “MTZ-1220.1/1220.3” tractors (with GB 24 x12)
An7
Electrical circuit diagram of MTZ - 626/826/926/1220.1/1220.3 tractors An9
MTZ 1220.1/1220.3 Section А. Introduction
А1
Section . INTRODUCTION
The present operator’s manual is designed for studying the structure, operation
rules and maintenance of tractors MTZ-1220.1/1220.3.
Read this manual carefully and fulfill requirements set forth in this manual.
Failure to follow this instruction can lead to operator's injury or a breakdown of
a tractor.
Operation of a tractor, its maintenance and repair shall be carried out only by
employees, familiar with all of its parameters and characteristics and informed about
necessary safety requirements to prevent casualties.
In connection with constant development of the tractor some changes, which
are not depicted in the present manual, can be introduced in the structure of certain
units and parts.
Long-term and reliable tractor performance is secured in the case of proper
operation and timely maintenance.
Any arbitrary changes made by a consumer release the manufacturer
from responsibility for possible further injuries to the operator and tractor
breakdown.
Tractors “MTZ -1220.1/1220.3” are universal wheeled tractors of the 2nd drawbar category with 4x4 wheel arrangement and designed for multiple agricultural operations with mounted, semimounted, trailed implements, and for loading and unloading and hauling operations.
Tractors “MTZ -1220.1” is a basic model with diesel engine D-245.2S2 with rated
power of 90 kW.
Tractors “MTZ -1220.3” is a modification with diesel engine D -245.2S2 with rated
power of 90 kW, muffler on the right side of cab column.
TO OPERATORS ATTENTION!
The tractor must be run-in for 30 hours. It is recommended to load a diesel
engine only up to 80% of the rated power until the first MS-1 (in 125 hours).
2. Your tractor is equipped with range-type gearbox. In addition the ranges are
shifted with toothed couplings, and gears within each range are shifted by virtue of
synchronizers.
To throw into the range proceed as follows:
–– Depress the clutch pedal and await complete tractor stop;
— Throw into the required range smoothly, without jerks, using the range engaging
lever;
— Smoothly release the clutch pedal.
To change geasr proceed as follows:
— Depress the clutch pedal;
— Shift the gearshift lever smoothly, without sharp jerks, and hold it in depressed
position until the gear is completely actuated;
— Smoothly release the clutch pedal.
You can change the gears in motion within the range only during the hauling operations on the hard-surface and dirt roads. Never attempt to change the gears in motion
MTZ 1220.1/1220.3 Section А. Introduction
А2
when a tractor unit is used in the cross-country conditions (arable fields, peat beds,
sandy soil etc.) because sudden stop of the tractor-machine unit can occur. Cross
the mentioned sections with previously selected gear.
Failure to comply with the stated operation rules will cause quick wearing out of gear
splines and tooth-type couplings as well as synchronizers impairment
Attention! If you hear skirr when shifting ranges and gears with the clutch pedal
being depressed, immediately turn to a repair shop for malfunction repair.
3. Observe the rules of PTO switch. When switching PTO move control lever smoothly with 2…4 sec. hang-up in the centre of motion from neutral position to PTO switch
in order to prevent shaft breaking, reducer gears breaking and tail breaking of PTO.
4. When adjusting operating and parking brakes make sure that the ground is horizontal, the engine is not running, rear wheels from front and back are supported by
wedges to exclude accidental movement of the tractor.
Adopted abbreviations and symbolic notations.
AB — accumulator battery;
RADL — rear axle differential lock;
PFE — paper filter element;
TDC — engine piston top dead center;
PTO — power take-off shaft;
PIS — power intake shaft;
HLL — hydraulic lift linkage;
HSU — hydrostatic steering unit;
SMS — shift-time maintenance service;
SPTA — spare parts, tools and accessories;
RHL
IVR
— rear hitch linkage;
— integral voltage regulator
SFE — safety filter element of engine air cleaner;
GB — gearbox;
TMU — tractor-machine unit;
CC — clutch coupling;
MS — maintenance service;
THM — towing hitch mechanism;
MFE — main filter element of engine air cleaner;
FDA — front driving axle;
HACS —hydraulics automated control system
SM — season maintenance;
VFL — volatile flammable liquid
CAC — engine charge air cooler;
TC — engine turbocharger.
MTZ 1220.1/1220.3 Section А. Introduction
А3
International Symbols
Manufacturer uses standard international symbols regarding instruments and operating controls.
Symbols with their meaning are given below.
— see operators manual
— control operating direction
— brake
— fast
— parking brake
— slow
— horn
— forward
— alarm signaling
— reverse
— fuel level in the tank
— battery charging condition
— coolant
— cab dome light
— starting preheater plug
— marker lights
— engine speed
— turning signals
— engine oil pressure
— headlights main beam
— engine coolant temperature
— headlights lower beam
— off/stop
— working headlights
— on/start
— differential lock
— continuous change
— PTO engaged
— lever — down
— FDA engaged
— lever — up
— fan
MTZ 1220.1/1220.3 Section А. Introduction
А4
— control valve spool “lift” posi-
tion
— windshield washer
— control valve spool “drop”
position
— front windscreen wiper
— control valve spool “float”
position
— rear windscreen wiper
— oil pressure in gearbox
— trailer turning signal
— air pressure in pneumatic
system
— oil pressure in HPS
— air filter impurity
—
MTZ 1220.1/1220.3 Section B. Safety requirements
B1
Section B. Safety Requirements
SAFETY REQUIREMENTS
Strict observance of safety precautions
and exact complying with the rules of
tractor control and its maintenance secure absolute safety of its operation.
General instructions
1. Study this operators manual atten-
tively before operating the tractor.
Poor knowledge of the tractor operation and service may lead to accidents.
2. Only specially trained and skilled
operators, who have passed accident-prevention and fire safety
briefings, are allowed to operate the
tractor.
3. If tractor is equipped with safety
belt use it during the operation. If
tractor is not equipped with safety
belt, contact the dealer.
4. Do not take a passenger into the
cab, if additional seat and hand
rails are not installed. There is no
any other safe space for a passenger in the cab!
5. Keep all warning plates clean.
6. Replace any damaged or missing
warning plate.
7. Carefully inspect the tractor, trailed
machine, mounted implement and
hitch before commencement of operations. Before starting operations
make sure that they are in good
order. Trailed agricultural machines
and transport trailers should have
rigid hitches, preventing their swaying and rear-end collision with the
tractor during a hauling.
Safety measures during tractor operation
Warning! Do not ever start the en-
gine while being outside the operator’s workplace. Always stay in the
cab in the operators seat when starting the engine or operating the controls.
7. Before starting the engine, make
sure that the parking brake is applied, the PTO control lever is in
«Disengaged» position, the gearshift and range selector levers are
in «Neutral» position. Make sure
the gearbox pump drive shifter is in
«Engine-Driven» position.
8. Always stay in the operators seat
when starting the engine or operating the controls.
9. Before starting motion, warn the
people around and those working
on the trailed machines with the
horn.
10. Do not leave the tractor in motion.
11. Before leaving the cab do not fail to
disengage the PTO, stop the engine, apply parking brake and remove the switch key.
12. Do not operate the tractor indoors
without proper ventilation. The exhaust gases may cause fatal outcome!
MTZ-1221.2/1221В.2/1221.3 Safety requirements
11
13. Stop the tractor immediately if the
engine or steering system fails.
Remember, that with the engine
shut down you will have to apply
much more forces to the steering
wheel in order to control the tractor.
14. Do not work under raised agricultural implements. Do not leave
mounted implement in raised position during long-term stops.
15. If the tractor front part rises off the
ground when heavy implements are
mounted at the rear hitch linkage
mechanism, install the front ballast
weights.
16. When operating with front loader,
fill rear tires with liquid ballast and
adjust a maximum wheel turning
angle to 30° at the most.
17. Before lifting or lowering a mounted
agricultural implement, and when
turning, make sure in advance
there is no danger of contact with
anyone around or interference with
some obstacle.
18. During transportation with implements and accessories coupled,
mechanism for fixing of attached
parts in raised position must be
used (for HLL without hydraulically
operated lift).
19. Cardan shaft, transmitting rotation
from the tractor PTO to the implements of the unit, should be fitted
with appropriate guards.
20. Make sure of proper mounting of
any additional equipment or auxiliary device and make sure they
are designed for use with your tractor.
Bear in mind that your tractor, when
improperly employed, may be dangerous both for you and for the
people around. Do not use implements, which are not designed for
installation on this tractor.
21. To prevent tractor roll-over, be
careful during the driving the tractor. Select a safe speed, corresponding to the road conditions, especially during cross-country driving, driving over ditches, slopes and
sharp turns.
22. When working on hillsides, increase
tractor wheel tread to maximum
width.
23. Avoid making sharp turns at full
load and at high travel speed.
24. When using the tractor for hauling
operations, follow the rules:
• Increase wheel tread to 1600 mm
(64’’) at least;
• Interlock the brake pedals, check
and, if necessary, adjust the
brakes for simultaneous action;
• Check the parking brake performance;
• Check condition of the light and
audible signaling devices;
• Cargo trailers must be fitted with
rigid hitches as well as be connected with safety chain or rope;
• Never travel downhill “free wheel”
with transmission in neutral position or clutch disengaged. When
traveling downhill use the same
gear as you would when going
uphill;
• Never use a trailer without independent brakes, if its gross weight
exceeds the half of the tractor total
actual mass. The faster you move
and the more load you tow, the
longer safety distance must be;
• Disengage the FDA to avoid extensive wearing out of drive components and tires;
• Do not use the RADL at speed
exceeding 10 km/h and while turning.
• Do not stop the tractor on the
slopes. If it’s necessary to stop,
MTZ-1221.2/1221В.2/1221.3 Safety requirements
12
engage the 1st gear and apply the
parking brake.
25. When you use PTO-driven equipment, stop the engine and make
sure that PTO drive end has
stopped completely, before you
leave the cab and uncouple the
equipment.
26. Do not wear loose clothes when
operating the PTO or when you are
in the vicinity of the rotating equipment.
27. When working with stationary machinery driven from the PTO, do not
fail to apply the parking brake and
block the rear wheels of the tractor
from the front and rear sides. Also
make sure the machine is secured
in its place.
28. Make sure the guard of the PTO
drive end is installed, and if the
PTO is not used, shift the PTO
mode control switch into midposition.
29. Do not carry out cleaning, adjustment and maintenance of the PTOdriven equipment when the engine
is running.
Safety measures during tractor
maintenance
30. Never refuel the tractor when the
engine is running.
31. Never smoke while refueling the
tractor.
32. Never fill the tank fully. Leave place
for fuel expansion.
33. Never add petrol or mixtures to the
diesel fuel. Such combinations may
enhance the fire or explosion hazard.
34. Use properly summer and winter
fuel grades. Fill in a fuel tank at the
end of each day to minimize night
water condensation.
35. Perform all operations, relating to
engine and tractor cleaning, prepa-
ration for work, maintenance, etc.,
when the engine is shut down and
brakes are applied.
36. The cooling system operates under
pressure, which is maintained by
the valve installed in the filler cap. It
is dangerous to remove the cap
when the engine is hot. To avoid
face and hands burns be careful
while opening radiator filler cap
when the engine is hot. Put close
cloth on the cap and take on a
glove in advance.
37. To avoid skin burns, be careful
when draining cooling liquid or water from the cooling system, hot oil
from the diesel, hydraulic system
and transmission.
38. Be careful when servicing storage
batteries, because electrolyte
causes burns if it comes into contact with the skin.
39. To avoid danger of explosion keep
any type of open flame away from
engine fuel system and storage batteries.
40. Keep the tractor, its equipment, especially brakes and steering control, in operable state in order to
ensure your own safety and safety
of people around.
41. Do not make any alternations in the
tractor or its separate components
without consulting your dealer and
or manufacturing works. Otherwise
the tractor will be deprived of aftersales service.
42. To avoid the fuel splash-out while
refueling the tractor by mechanized
method, remove the screen filter
from the fuel tank filler neck.
Screen filter is designed only for
manual refueling of the tractor in
the field.
43. Refuel the tractor using only oils
and lubricants recommended by the
manufacturing works. It is strictly
forbidden to use other lubricants!
MTZ-1221.2/1221В.2/1221.3 Safety requirements
11
Safety requirements during
operation and maintenance of
electrical equipment
44. To avoid damaging the semiconductor devices and resistors,
comply with the following precautions:
• Do not disconnect the storage battery while the engine is running.
This will cause a peak voltage in
charging circuit and lead to immediate damage to the diodes and
transistors;
• Do not disconnect electric wires
until the engine is stopped and
electric switches are in the “OFF”
position;
• Do not cause a short circuit by the
wrong connection of electrical
wires. A short circuit or reverse
polarity will cause damage to the
diodes and transistors;
• Do not connect a storage battery
into the electrical equipment system until it has been checked for
correct voltage and terminals polarity;
• Do not check for current flow by
means of spark test as it will immediately result in transistors
breakdown;
• It is prohibited to switch off the
battery disconnect switch when
the engine is running;
• It is prohibited to operate the tractor without storage battery.
Hygienic requirements
• Daily fill the thermos with fresh
clean drinking water;
• First-aid kit should be completed
with bandages, iodine tincture, ammonia spirit, borated petrolatum, sodium
carbonate, menthol valerate and analgin;
• Use cab natural ventilation or cab
air heating and cooling unit according to
operation conditions.
• If the time of continuous tractor operation during a work shift exceeds 2,5
hours it’s necessary to use personal
noise protection equipment according
to GOST 12.4.051-87 (earplugs, antiphons).
Fire safety requirements
1. The tractor should be equipped with
firefighting equipment – shovel and
fire-extinguisher. It’s prohibited to
operate the tractor without fireextinguishing means.
2. Never refuel the tractor when the engine is running.
3. Do not smoke while refueling the
tractor.
4. Never fill the tank fully. Leave place
for fuel expansion.
5. Never add petrol or mixtures to the
diesel fuel. Such combinations may
enhance the fire or explosion hazard.
6. Places of tractors parking, storage of
fuel and lubrication materials should
be plowed around with a strip having
at least 3 m width and provided with
fire-extinguishing means.
7. Refuel the tractors with fuel and lubrication materials by mechanized
method with the engine shut down.
Use lighting at night. It is not recommended to fill in fuel tanks with the
help of buckets.
8. When performing repair operations in
the field with the application of electro-gas welding clean parts and assembly units from plant remains.
9. Prevent collector and muffler pollution with the dust, fuel, straw, etc.
10. Prevent straw reeling on the rotat-
ing parts of machines aggregated
with the tractor.
11. When washing parts and assembly
units with kerosene or gasoline take
MTZ-1221.2/1221В.2/1221.3 Safety requirements
12
measures to prevent the flaming of
the washing liquid fumes.
12. Do not operate the tractor in the fire
dangerous areas when the bonnet
and other guard devices are taken
off the engine heated parts.
13. Do not use open fire for heating up
the oil in the engine pan, when filling in fuel tanks, and for burning off
the contaminant pollution of the radiator core.
14. When the fire seat occurs cover it
with sand or with canvas cloth or
other close cloth. Use the carbondioxide fire extinguisher. Do not extinguish burning fuel with water
15. See that there are no flammable
materials near exhaust manifold
and muffler when the engine is running.
MTZ 1220.1/1220.3 Section С. Technical data
C1
Section C. TECHNICAL DATA
Tractor MTZ - 1220.1
Tractor MTZ - 1220.3
Muffler on the right side of cab column, for the rest see “MTZ - 1220.1”
Weights and dimension:
Parameter
Value
Length
with ballast weights and linkage to a tractor in transp
ort position
,
mm
4600±50
Width
over semiaxles ends
, mm
2250
±10
H
eight
over cab
, mm
2890
±50
Wheelbase
, mm
2550
±30
Agricultural clearance under axle tubes, mm
(not less than)
630
Road clearance
(
on tires of basic configuration
), mm, not less than
450
Tractor
structural weight
, kg
4850
±
100
Tractor operating we
ight, kg 5500
±
100
Tractor
maximum
operating
, kg 8800
Serial numbers of tractor constituents
Tractor identification plate indicates
tractor serial number and diesel engine
serial number.
MTZ 1220.1/1220.3 Section С. Technical data
C2
Tractor serial number is duplicated on
the right sidemember.
Diesel engine serial number is also indicated on the engine identification
plate located on the left side of cylinders block.
Diesel engine turbocharger identification number
Clutch coupling housing number
MTZ 1220.1/1220.3 Section С. Technical data
C3
Gearbox identification number
.
Transmission identification number
Front driving axle identification number
Cab serial number
MTZ 1220.1/1220.3 Section С. Technical data
C4
Diesel engine
Engine model
D-245.2S2
Manufacturer
ОАО Minsk Motor Plant
Type
Four-cycle, turbo-charging with after-
cooling
Number of cylinders
4
Fuel injection system
direct injection
Compression ratio (calc
u
lated)
17±1
Cylinder bore
,
mm
110
Piston stroke
,
mm
125
Displacement
, l
4,75
Firing order
1-3-4-2
Cool
ing system
liquid
Rated speed
,
rev/min
2200
Maximum no
-
load speed
,
rev/min
2420
Minimum idle speed
,
rev/min
800±50
Rated power
, kW
90
Peak torque
, Nm
490
Specific fuel consumption at opera
t-
ing power, g/(kW·h)
254,0
7,12
1,5+−
Clearance b
etween rocker shaft
striker and intake valve stem end
when diesel engine is cold, mm
- 0,25
05,0
10,0+−
Clearance between rocker shaft
striker and exhaust valve stem end
when diesel engine is cold, mm
- 0,45
05,0
10,0+−
Fuel inje
ction lead angle
up to top
dead center (TDC), degrees
3,5±0,5
MTZ 1220.1/1220.3 Section С. Technical data
C5
Diesel engine fuel system
Fuel pump
Type: four-plunger, in-line with priming
pump:
PP4M10Pli – 3704 (of the company
MOTORPAL, Czech Republic) or
773.1111005 –07 (of OAO YAZDA,
Russian Federation).
Regulator: mechanical, centrifugal, variable speed, direct acting type, with automatic fuel supply increase at engine
start.
Injectors: 455.1112010-50 or
172.1112010-11.01
Air cleaner
With paper filter elements.
Turbocharger
radial inward turbine and radial-flow
compressor, assembled on one shaft.
C14 type of the company CZ (“Turbo”),
Czech Republic. Installation of foreign
producers turbochargers is possible.
CAC
is of radiator type, installed in
front of water radiator. It is designed for
cooling of air charges inside the diesel
engine intake manifold.
Engine cooling system
Type: liquid, closed with positive liquid
circulation, temperature control, thermostatic regulator. Normal operating
temperature
from
85º to 95º.
Engine lubrication system
Тype: Combined, with oil-to-water heat
exchanger.
Oil purification: full-flow with exchangeable filter (indecomposable n-type)
Min oil pressure: 0.08 MPa at 600 rpm.
Working pressure between 0.25…0.35
MPa.
Max.pressure at cold engine: up to 0.6
MPa.
Engine Starting System
24 V starting motor, rated power 4.0kW
or 4.5 kW
Starting aid:
Heating plugs, rated voltage 23V or
11V.
Generator
AC, rated voltage 14V, power 1.15 kW.
Clutch coupling
Type: Dry friction, double-disk
spring loaded clutch
MTZ 1220.1/1220.3 Section С. Technical data
C6
Gear box
Type: 16/8, mechanical, step-by-step, ranged with constant-mesh gears. Shifting of
four gears in each range of forward and reverse movement is carried out via synchronizers.
The Table below is placed in the right part of the cab window,
Note – A gearbox 24/12 can be installed in your tractor optionally. In this case a Table with corresponding series of speeds will be in the cab window.
Tractor design travel speeds with rear wheels 18.4R38
Rear axle
Main gear: a pair of bevel gears with
spiral tooth.
Final drives: a pair of spur gears for
each sideboard.
Rear-axle drives: planetary type.
MTZ 1220.1/1220.3 Section С. Technical data
C7
Differential lock: Oil-actuated friction
clutch
Brakes
Service Brakes: on rear wheels: twodisk or three-disk, dry with mechanical
servo drive. Disk diameter: 204 mm (or
eight-disk, operating in oil sump (option)
Parking brake: On rear wheels through
differential lock on final drives and rearaxle drives. Dry-disk type with mechanical hand control. Disk diameter: 180
mm (or 4-disk, operating in oil sump
(option))
Front driving axle
Type: two-point, beam-type
Main gear type: bevel gears with spiral
tooth.
Differential type: self-locking, exces-
sive friction
Final gears type: planetary
Drive gear type: built in GB single pa-
rallel-shaft reduction gear unit with hydraulically operated multiplate clutch;
cardan shaft.
Hydraulic distributor of FDA control:
hydraulically operated, spool-type, electrically controlled
PTO drive
Type: independent, two-speed and
synchronous
Drive clutch: Planetary reduction gear
with band brakes
Drive: electrohydraulic
PTO end speed:
Independent drive
I — 540 rpm; N=60 kW,
II — 1000 rpm; N=90 kW.
Synchronous drive
4,18 rev/meter of travel when fitted with
tires 18,4R38.
PTO shaft end extension: SAE standard 6-spline for 540 rpm and 21-spline
for 1000 rpm.
Rotation: Clockwise
Steering
Type: hydrostatic (H.S.).
Feed pump: NSH14, gear-type, left-
handed rotation.
Volume constant — 14 m3/rev.
Metering pump type — gerotor type
Volume constant – 160 m3/rev.
Relief valve pressure— 14 Pa (140
kgf/m2).
Antishock valves pressure — 20 Pa
(200 kgf/m2).
Actuating mechanism: one hydraulic
bilateral cylinders.
Bore — 63 mm,
Cylinder stroke— 200 mm
Steering wheel range of adjustment:
• in angle of slope - from 25° to 40°
with fixation in four positions,
• in height – along steering shaft axle,
stepless 100 ±200 mm
Backlash in the steering wheel –
max. 25°, when feed pump is in opera-
tion
Hydraulic lift linkage (HLL)
Type: unit-principle with hydraulic lift
device (with two plunger cylinders) It
MTZ 1220.1/1220.3 Section С. Technical data
C8
provides 4 control modes of agricultural
implements position:
• height control mode;
• power control mode;
• position control mode;
• combined (mixed) control mode.
Outlets: 3 pairs and one drain line
(rear).
Oil feed pump
Тype: gear-type. Pump capacity — not
less than 56 l/min at 2100 rpm.
Distributive valve: hydraulic spooltype 70-1221 or RS-213 «MITA», 3section with fixation of spools in “float”
position. It has the following positions:
“Up”, “Neutral”, “Down” and “Float”.
Hydraulic lift distributor:
820-4634010. hydraulic spool distributor
Cylinder: piston cylinder
(2 pcs.) — bore 90 mm,
stroke — 220 mm.
Rear lift linkage:
Type: swinging four-bar linkage of cat-
egory II
Lifting capacity of rear lift linkage on
suspension axis is not less than 4500
kg.
Electrical equipment
Voltage of on-board power system:
12V
Power system: two accumulator batte-
ries12 V each, with capacity 88 •h or
90 •h .
Lighting and light alarm system:
• front driving lights with high/low
beam;
• front and rear work lights;
• front and rear lamps;
• dash board light and rear registration
plate light;
• hazard warning lights;
• lights of “road-train” sign (optional).
Power consumers connection: multipin composite plug.
Test instruments
Instrument cluster, integrated display
and control lamps blocks.
Other equipment:
Front and rear window wipers; windshield washer; dome light.
Pneumatic system
Compressor
Type: single-cylinder, air-cooled
Trailer brakes control
Type: pneumatic, single-wire, locked
with tractor service brakes (option –
two-wire).
Wheels
Tyres (main modification)
Front:
M 420/70R24 or 14,9R24;
On order: 11.2R24.
Rear:
Main: 18,4R38;
On order: 16.9R38, 11.2R42.
Wheel Track:
• front wheel track 1535, 1635, 1700,
1800, 1850, mm, 1950; 2020; 2120.
• rear wheel track 1450...2200 mm.
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D1
Section D. OPERATION CONTROLS AND INSTRUMENTS
1. Sunscreen;
2. Heater control valve operating handle;
3. Radio-receiving set (if any);
4. Air distributors of cab ventilation and heating system;
5. Recirculation shutters;
6. Front windscreen wiper switch;
7. Cab fan and heater switch;
8. Rear working lights switch;
9. Front working lights switch;
10. Road-train sign lighting switch;
11. Cab light switch;
12. Emergency control lamps switch;
13. Steering-wheel-mounted multifunction
switch (turn, turn indicators, upper/lower
beam);
14. Instrument cluster;
15. Control lamps block;
16. Integrated indicator;
17. Steering wheel;
18. Integrated indicator program console;
19. Starter and instruments switch;
20. Front working lights switch on cab grabhandles;
21. AB remote cut-off;
22. Windscreen washer switch;
23. Main light switch;
24. Clutch pedal;
25. Diesel engine stop lever;
26. Steering column inclination control;
27. Brake pedal
28. Right brake pedal
29. Fuel feed control pedal
30. Hydraulic output control levers
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D2
31. GB range selector lever;
32. Parking brake lever;
33. Gear-change lever;
34. Governor control lever stop bumper
;
35. FDA, rear axle differential lock and PTO
control arm;
36. Tillage depth adjustment levers
37. Fuel feed control lever
38 Power take-off shifter arm (independent
- synchronous)
Important: Before starting tractor operation study the purposes for which the controls,
instruments and functions may be applied.
The given information will facilitate studying of controls and instruments for tractor safe
operation.
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D3
Starter and instrumentation switch
Switch (1) has four positions:
• 0 – “Off”;
• I –"Instruments, control lamps block,
heating plugs are on”;
• II – “Starter On” (not fixed position);
• III – “Radio receiver ON” (key is turned
counter-clockwise).
IMPORTANT! Starter restarting may be
possible "0”.
In order to shift starter and instruments
switch into position “III’, it it necessary to
sunk the key into switch slightly and then
turn it counterclockwise.
Instrument board switches
1 – main light switch, has three positions:
- “Off” (upper part of the button is sunk,
position I);
- “Front and rear marking lights, numberplate light, board gauges light, and additional
lamps on the trailed machine are on” (middle
position, II);
- “All consumers of position II and road
lamps are on” (lower part of the button is
pressed up to the stop, position III).
2 – windscreen washer switch.
Windscreen washer is switched on by single pressing to the button.
3 – remote AB switch. AB is switched by
single pressing to the remote AB switch button, and it is switched off by pressing the
same button again.
4 – shut-off switch for front working
lights, installed on front light brackets. By
pressing button 8 two working lamps, (installed on front light brackets) and indicator
light, built-in the button.
By pressing the emergency light alarm button 5 the emergency light alarm is engaged.
The indicating lamp blinks simultaneously with
alarm flashing light. Emergency light alarm is
disengaged by pressing the same button
again.
1 - main light switch; 2 - windscreen washer
switch; 3 - remote AB switch; 4 - shut-off switch
for front working lights, installed on front light
brackets.
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D4
Instrument cluster
Instrument cluster includes six gauges with
five signal lamps.
Scale indicating fuel volume in the tank (1)
has divisions 0–1/4–1/2–3/4–1. A signal lamp
(1.1) (orange color) is built in the gauge scale,
which lights up when fuel volume in the tank
drops below 1/8 of the total tank volume.
ATTENTION: do not let the tank become em
p-
ty (the gauge pointer is in the zone of orange co
l-
or)!
Scale indicating air pressure in pneumatic
system (2) has three divisions:
- working – from 500 from 800 kPa (green);
- emergency (two) — from 0 to 500 kPa and
from 800 to 1000 kPa (red).
A signal lamp (2.1) (red), is built in the
gauge scale, which lights up when the pressure in pneumatic system loss reaches 500
kPa.
Voltage gauge
(3)
indicates accumulator
batteries voltage with the engine stopped
when the key of starter and instruments
switch
(1)
is set in position “I”. With the engine running the voltage gauge indicates
voltage on generator terminals. An indicating lamp
(3.1)
of red color is built in the
scale of voltage gauge. It is used only with
24V starting system. It indicates the
process of the additional battery charge
with 24V – it checks the workability of the
voltage converter.
Zone on the
voltage
gauge scale,
color
States of powe
r supply system
with the engine
running
with the engine
stopped
13,0 – 15,0 V
green
normal mode of
charge
10,0 – 12,0 V
red
the generator is
out of order
accumulator ba
t-
tery
discharged
12,0 – 13,0 V
yellow
No AB charge
(low charging voltage)
AB has a normal
charge
15,0 – 16,0 V
red
AB recharge
white line in
the yellow
zone
Rated AB electromotive force is
12,7 V
IMPORTANT!
if the voltage gauge
(3)
indicates absence of AB charge, check the
state and tension of the generator drive
belt
.
ATTENTION
! When
emergency temperature indicating lamp or emergency oil pressure in the diesel engine indicating lamp is
Variant 1
Variant 2
Scale indicating diesel engine coolant tem-
perature (4) has three zones:
- engine warm-up — 40 - 70°, yellow;
- working — from 70 to 100° - green;
- emergency — from 100 to 120° - red.
Emergency engine coolant temperature indicator
lamp becomes on when coolant temperature exceeds
105 °.
Scale of oil pressure gauge in the engine
lubricating system (5) has three zones:
- working — from 100 to 500 kPa - green;
- emergency (two) — from 0 to 100 kPa and
from 500 to 600 kPa (red);
Indicator lamp 5.1 “Emergency oil pressure in the
engine” responses at values of 100 kPa and less.
IMPORTANT! when the cold engine is started the
pressure can be 600 kPa and higher.
Scale of oil pressure gauge in the transmis-
sion hydraulic system
(6)
has three zones
:
-
working — from
800
to
1500
kPa
-
green
;
-
emergency (two
) —
from 0 to
800
kPa
and
from 1500 to 1800
kPa
- red.
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D5
on
, stop the engine, find and eliminate fai
l-
ure!
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D6
Integrated indicator
АР80.3813 (1)
Integrated indicator (hereinafter referred to as II) and control console (hereinafter referred to as CC) controls operational parameters of systems and assembly units of tractors “MTZ” and deliver data on malfunctions or failures of a system to the operator.
The ID includes indicators
and pilot lights, recording
the following parameters:
1 – Speed indicator
(pointer indicator));
2 – Engine rotational
speed indicator (pointer
indicator);
S1 – Liquid crystal display, multifunction display
(detailed description and
operation principle; S1
see. below)
S2 – PTO rotations indi-
cator (indicator lamp);
HG1 – Alarm of the overvoltage in the tractor on-board power system (red);
HG2 – Parking break engagement indicating lamp (red);
HG3 – Tractor turn indicator pilot lamp (green);
HG4 – Trailer turn indicator pilot lamp (green);
HG5 – Upper beam switching on indicator (blue);
HG6, HG10 – PTO speed scale segments (yellow);
HG7… HG9 – PTO speed scale segments (green);
HG11, HG12 – PTO speed scale range signaling devices (yellow);
Principle of operation and purpose of indicators on integrated indicator.
1 – speed indicator - shows travel speed of the tractor in graph form.
The indicator is operated by signals from pulse transducers of toothed gears speed of
final drives of tractor’s left and right rear wheels. Speed is indicated by the signal from the
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D7
transducer installed on the final drive gear of the wheel rotating with the lowest speed. In case
of absence of a signal, there will not be any speed readouts (see below for more details).
Readouts range from 0 to 50 km/h.
Р2 – engine rpm indicator – shows engine shaft speed of the tractor in graph form.
The indicator is operated by a signal from generator phase winding.
Engine rpm range from 0 to 3500 (rpm).
РS2 – PTO speed indicator – shows power take-off shaft rpm on the light indicator.
The PTO speed indicator operates from a frequency signal produced by recalculation from the engine speed with an input value of the “KV2” ratio (see below) different
from “0”, herewith a value of the ZV ratio equal to “0” must be input (see below).
When the II is on (check of the device operability is described below) and the engine is running (a message of “engine speed” is transmitted from the ECU), the designations of the “540” and “1000” scales are illuminated simultaneously.
Informative:
the lower segment of the PTO scale (with consideration to the “KV2” ratio) is indicated when the engine speed achieves 1400-1500 rpm or higher.
Depending on the engaged PTO speed mode (540 or 1000), the illuminated scale segments designate PTO speeds as specified in Table 3.
Table 1.1
Values of scale segments
response “1000” (rpm)
Location of the segment in
the scale
Values of scale segments
response “540” (rpm)
1150 HG6 650
1050 HG7 580
950 HG8 500
850 HG9 420
750 HG10 320
РS1- multifunctional display (MD) is an LCD displaying:
1. digital designation of the gearbox shifter
(figures of 0 to 6) or a letter designation of
the reducer shifter position (letters L, M, H,
N).
2. current numerical value of one of the para-
meters of the tractor systems.
The integrated display receives information about the gearbox shifter position from the
transmission control unit (if the complex electronic control system is available) or from
the range reducer control unit (if available). This parameter is displayed in the “1” informative field (Figure 1.6). When control units are not available or are not connected, or a
wire is broken, the “1” informative field displays an “A” letter.
The “2” informative field displays the following parameters:
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D8
1. Total astronomical service hours of the engine.
The counter operates with the engine running.
The indication range is 0 to 99999 service hours of the
engine.
In case of power supply interruption the counter saves the information on total service
hours.
2. Service hours over the set period:
In this mode astronomical service hours of the engine is displayed
over the set period of time passed from the previous setting of the
parameter to zero.
Setting to zero algorithm includes choosing of a specified mode,
pushing and holding for seconds of “Mode” key until the counter readouts are set to “0”.
3. Volume of fuel remaining:
In this mode, the current fuel volume in the tank is displayed in
liters.
This mode is available only when the tractor stands still.
Note – tractors “MTZ-220.1/1220.3” are equipped with two fuel volume sensors:
- there is one frequency fuel volume sensor (FFVS) inside a fuel tank under a cab.
- there is another modified frequency fuel volume sensor (MFFVS) inside a fuel tank on a
frame.
Data on total volume of fuel in the fuel tanks comes from a MFFVS to an indica-
tor.
NOTE. Switching between display modes “Total astronomical service hours of the
engine” and “Volume of fuel remaining“ is shall be carried out by “Mode” key on the
control console (2).
3. Diagnostics of speed sensor operability and connection:
When no signal arrives from the speed
sensors for 10 to 12 seconds, the LCD
screen shows a message of a “0” figure
specifying the location of the faulty sensor
(left or right).
4. Diagnostics of frequency-type fuel volume sensor operability (FFVS):
When no frequency signal arrives from the FFVS for 2 seconds,
the LCD screen of the II shows a “FUEL” message;
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D9
Each failure message (Example: 0----, FUEL, C-BUS) is displayed on the LCD
screen by priority independently of the information displayed. Sequentially pressing the
“Mode” button must browse through the messages alternately. When the last message
is shown and the “Mode” button is pressed again, the LCD screen switches to the display mode as per the cycle of the previously specified working parameters.
Failure messages are displayed on the LCD screen each time the device is turned on,
till the reason of the failure is eliminated.
IMPORTANT: When the II is turned on, the MD shows information in the indication
mode that had been selected before the II was turned off last time.
Indicating lamp operation principles
HG1 – tractor on-board circuit high voltage indicator. Goes on when the tractor electrical
system supply voltage exceeds 19 V and goes off when the supply voltage is reduced to
17 V;
Herewith, the II is completely turned off and restores its operability when the vol-
tage drops to the rated voltage of the on-board circuit
HG2 – parking brake engagement indicator:
The parking brake indicator blinks with the frequency of 1 Hz when the parking
brake sensor goes off;
HG3, HG4 – tractor and trailer turn indicator.
Blinks when the right or left turn indicator is turned on by the under steering multi-
functional switch 14 or when the alarm signaling switch is turned on.
HG5 – headlight upper beam indicator pilot lamp. Goes on when the upper beam indica-
tor pilot lamp is switched on.
Note
!
Indicators are switched on and off synchronous with changes of system sen-
sors state.
Integrated indicator control console АР80.3709
(2). II programming.
The programming console allows for manually programming the indicator with the “Parameter” and
“Value” buttons, changing the display mode of parameters shown on the LCD.
The front face of the console has a diagnostic socket
ХР1 that allows for automatic programming (repro-
gramming) the ID with a special device (if available). If
no special device is available, reprogramming is per-
formed with the above mentioned buttons.
II programming algorithm is as follows:
1. When the “Parameter” button is pressed for the first time, the LCD switches to the
mode of viewing the programmed parameter and its numerical value. When the button
is pressed repeatedly, the parameters are alternated cyclically.
MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D10
2. When the “Value” button is pressed repeatedly, the numerical value of the set programmed parameter is changed.
3. When neither the “Parameter” nor “Value” button is pressed for 7.0 seconds, the
mode is exited automatically.
When exiting the mode, the parameter values selected with the “Value” button are
stored.
List of programmed ratios(graphic examples of parameter presentations and their values in the programming mode):
“Z” parameter
Z is the number of teeth of final shaft gears of the driving wheels
(right and left), at which the travel speed (rotation speed) sensors
are installed.
.
“I” parameter
I is the gear ratio multiplier of the wheel-hub drive;
“R” parameter
R is the rear wheel rolling radius, mm (is the value for tires
18.4R38. If other tire types are installed, set the “R” value corresponding to the rolling radius of the installed tires);
“” parameter
K is f generator drive transfer ratio;
“KV2” parameter
KV2 is the PTO gear ratio;
“ZV” parameter
ZV is the teeth number of the PTO speed sensor gear;
“V” parameter
V is the fuel tank volume, (l).
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