URAL Motorcycles 4320M User manual

URAL-4320М TRUCK
and its Modifications

URAL-4320М TRUCK
and its Modifications
Operation Manual
4320М-390203 -10 РЭ
(2
nd
edition, amended)

URALAZ
Partial or full reprint, duplication or
translation is not allowed without
written permit of OJSC “URAL
Motor Vehicles Plant”
Miass – March 2017.

2
The Manual is dedicated for drivers and motor transport workers connected with Ural
tucks operation. The Manual gives technical specifications of the trucks, short description of their
construction and operation of truck components, their adjustment and maintenance, reference da-
ta.
Due to constant modernisation of the product improving its reliabilit and operation con-
ditions, the construction ma be partiall amended, and such amendments are not included in this
Manual.
When operating URAL truckswith 4х4, 6х6 wheel arrangement and its modification with
“Euro-4” engines and pneumatic brake s stem drive the following should be used:
Operation Manual “Ural-4320M trucks and its Modifications”;
Operation Manual “YAMZ-536, YAMZ-5362, YAMZ-5362, YAMZ-5363, YAMZ-5364
Engines”
Operation Manual for ZF 9S 1310 Gearbox (for power units with ZF gearbox);
Operation Manual for YAMZ-0905 Gearbox (for power units with YAMZ-0905 gear-
box);
Operation Manual for YAMZ-1105 Gearbox (for power units with YAMZ-1105 gear-
box);
Operation Manual for
9JS135ТА Gearbox (for power units with FAST GEAR gearbox).
Operation Manual for the Engine Starting Heater;
Operation Manual (Instruction) for “Lead-acid, starter Storage Batteries”)
Installation and Operation Manual for Drawbar Coupling;
Operation Manual “URAL 73.3801-01 Combination of Devices” АДИГ.453895.012РЭ
Элара.
The Tachograph Installation and Operation Manual.
In the second edition of the Operation Manual amendments relating to the tachograph in-
stallation (Chapter “Control Tools and Devices”); regulation of transfer box (Chapter “Transmis-
sion” paragraph “Transfer Box”); maintenance intervals (Chapter “Maintenance”, paragraphs
“List of Trucks Maintenance Operations”, “Lubricants and H draulic Fluids Charts”) are made.
The Manual is compiled b the engineers of the Engineering Design Department of OJSC “URAL
Motor Vehicles Plant” Kochetkov A.L., Karkavin V.I., Kird ashkin A.N., Kropotov A.N., Polen-
kov A.A., Pushkin Yu.A., R balkin D.A., Smirnov I.G., Savanovich V.P., Sokolov A.P., Sokolov
O.V., Trofimov V.A., Shevchenko S.V., Maltsev A.V. Under the general management of the
Chief Designer for Commercial Vehicles Zakharik A.M.
Draftsman: Petrova N.A.
Publishing Editor: Trofimov V.A.

3
Contents
Introduction.............................................................................................................................. 5
1 Safet Requirements and Warning........................................................................................ 7
1.1 Safet Requirements............................................................................................ 7
1.2 Warnings.............................................................................................................. 9
2 Technical Specifications........................................................................................................ 12
2.1 Technical Specifications of 6х6 Trucks with Conventional Cab ...........................
12
2.2 Technical Specifications of Chassis of 6х6 Truck with Conventional Cab............
15
2.3 Technical Specifications of 6х6 Cabover Trucks .................................................. 18
2.4 Technical Specifications of Chassis of 6х6 Cabover Trucks .................................
22
2.5 Technical Specifications of 4x4 Trucks and Chassis..............................................
25
2.6 Dimensions of 6x6 and 4x4 Trucks and Chassis………………………………… 28
3 Control Tools and Devices.....................................................................................................
36
3.1 Control Tools and Instrumentation of Conventional Cab Trucks...........................
36
3.2 Control Tools and Instrumentation of Cabover
Trucks....................................................................................................................................... 40
3.3 Subscription Station……………………………………………………………… 43
4 Truck Components' Structure and Operation Description, their Adjustment and Mainte-
nance......................................................................................................................................... 46
4.1 Engine..................................................................................................................... 46
4.1.1 Feed S stem......................................................................................................... 46
4.1.2 The Engine Starting Heater S stem..................................................................... 50
4.1.3 Gas Exhaust S stem.............................................................................................
51
4.1.4 Cooling S stem.................................................................................................... 52
4.1.5 Power Unit Suspension........................................................................................ 55
4.1.6 Engine Idle Adjustment....................................................................................... 56
4.2 Transmission....................................................................................................................... 58
4.2.1 Clutch Control with Air-Over H draulic Booster............................................... 58
4.2.2 Wabco Air-Over H draulic Booster Construction and Operation……………... 62
4.2.3 Gearbox................................................................................................................ 65
4.2.4 Transfer Box........................................................................................................ 66
4.2.5 Driveline.............................................................................................................. 71
4.2.6 Driving Axles...................................................................................................... 74
4.3 Undercarriage......................................................................................................................
82
4.3.1 Frame................................................................................................................... 82
4.3.2 Truck Suspension................................................................................................. 83
4.3.3 Wheels and Tires..................................................................................................
90
4.3.4 Spare Wheel Holder............................................................................................. 100
4.4 Steering wheel.....................................................................................................................
102
4.4.1 Steer..................................................................................................................... 102
4.4.2 Booster................................................................................................................. 103
4.4.3 Steering Wheel Oil Tank..................................................................................... 105
4.4.4 Steering Wheel H draulic Booster Pump............................................................ 105
4.4.5 Tie Rod Ends....................................................................................................... 106
4.4.6 Steering Wheel Maintenance............................................................................... 106
4.5 Brake S stems.................................................................................................................... 109
4.5.1 Primar Brake S stem......................................................................................... 109
4.5.2 Primar Brake S stem Pneumatic Drive............................................................. 118

4
4.5.3 Emergenc Brake S stem.................................................................................... 129
4.5.4 Parking Brake S stem.......................................................................................... 129
4.5.5 The Antilock Brake S stem (ABS)......................................................................
132
4.6 Electrical Equipment...........................................................................................................
141
4.6.1 Conventional Cab Truck Wiring Diagram……………………………………...
141
4.6.2 Cabover Truck Wiring Diagram.......................................................................... 144
4.6.3 Fuses.................................................................................................................... 148
4.6.4 Alternator............................................................................................................. 152
4.6.5 Storage Batteries.................................................................................................. 153
4.6.6 Lighting and Alarm S stem................................................................................. 157
4.7 Cab, Trim Package and Platform........................................................................................ 159
4.7.1 Cab....................................................................................................................... 159
4.7.2 Trim Package.......................................................................................................
168
4.7.3 Platform................................................................................................................
168
4.8 Fifth-Wheel Coupling......................................................................................................... 172
4.9 Dedicated Equipment.......................................................................................................... 176
4.9.1 Power Takeoff......................................................................................................
176
4.9.2 Additional Power Takeoff....................................................................................
178
4.9.3 Winch................................................................................................................... 179
4.9.4 Tire Pressure Control S stem.............................................................................. 185
5 Troubleshooting……………………………………………………………………………. 189
6 Operation Features................................................................................................................. 194
6.1 Preparation of a New Truck for Operation............................................................. 194
6.2 Engine Start and Stop..............................................................................................
194
6.3 Truck Breaking In………………………………………………………………... 194
6.4 Truck Driving..........................................................................................................
195
7 Maintenance........................................................................................................................... 200
7.1 List of Truck Maintenance Operations................................................................... 201
7.2 Truck Lubrication................................................................................................... 222
7.3 Lubricant and H draulic Fluid Charts.................................................................... 224
8 Storage................................................................................................................................... 248
9 Transportation........................................................................................................................ 252
10 Disposal................................................................................................................................
255
Appendices................................................................................................................................
256
Appendix A Torques of Basic Screw Joints…………………………………………. 256
Appendix B Control and Adjustment Information....................................................... 260
Appendix C Weight of Basic Assembl Units............................................................. 261
Appendix D Antifriction Bearings............................................................................... 262
Appendix E Oils, Lubricants and Special Fluids.......................................................... 265
Appendix F Auto Bulbs and their Specifications……………………………………. 267
Appendix G Used Oil Discharge Standard................................................................... 268
Appendix H Spare Parts, Tools and Accessories.......................................................... 269
Appendix I List of Gaskets Installed to the Truck........................................................ 275
Appendix J Maintenance Interval Coefficient Correction Chart Depending on Truck
Operation Conditions................................................................................................................ 277

5
Introduction
Modernized URAL trucks with 4x4 and 6x6 wheel arrangement and YAMZ-536 engine
(emission class 4) are dedicated for cargo transportation (except hazardous cargo), people trans-
portation and trailing on an kinds of roads and terrain.
URAL trucks are designed for operation at air temperatures from minus 45 to plus 50 °С
(short time operation up to minus 50 °С is possible).
URAL trucks compl with TS 37.165.392-2011 requirements: “URAL trucks with 4x4
and 6x6 wheel arrangement and YAMZ-536 engine”.
First overhaul period at first operation categor according to “The Regulation for
Maintenance and Overhaul of Automobile Vehicles” (if all the rules specified in the Operation
Manual are observed) should be at least 350 000 km.
During the said period separate units and devices with run predetermined renewal mile-
age, as well as bought-in components lifetime of which is less than the truck life according to
technical documents and standards of the supplier can be replaced.
Product lifetime is 10 ears minimum.
Trucks and chassis are manufactured in various configurations for design variants and
components nomenclature.
The trucks are dedicated for operation with trailers having pneumatic transmissions ac-
cording to GOST R 50023-92 and electric transmissions according to GOST 9200-76 (design var-
iant II), pneumatic transmission of braking s stem, brake s stems according to the United Nations
Economic Commission for Europe No. 13-10, gross vehicle weight according to technical specifi-
cations of the truck, towing hitch:
- semi-trailers - fifth-wheel king pin t pe A according to GOST 12017-81 equal to 50.8
mm, and connecting dimensions according to GOST 12105-74 for fifth-wheel rated load over
83.3 kN (8.5 tf);
- trailers - trailer hitch (drawbar e e) should compl with D50 class according to GOST
R 41.55-2005 (for antibacklash tow unit), basic e e dimensions should compl with GOST R
41.55-2005 and ISO 1102-75. Application of other dimension eyes is forbidden.
CAUTION! It is strictly forbidden to use toroidal drawbar eyes of L class accord-
in to GOST R 41.55-2005.
On customer’s request it is possible to install “hook-e e” drawbar couplings (delivered
as spare parts for Ural trucks) for operation with trailers according to GOST 2349-75, standard
size 3. Trailer hitch (drawbar e e) must compl with GOST 2349-75.
Basic trailer model is 82Б (2ПН-4М).
Installation of various equipment and devices to the truck and its chassis is allowed on
approval with the Design Engineering Centre of the plant. If otherwise, the customer will have no
right to claim earl breakage of truck parts.
URAL trucksare not dedicated for hazardous cargo transportation without additional ad-
aptation.
Ural truck and chassis are marked according to technical regulation of wheel vehicle
safet .
Manufacturer’s tables are installed on the right panel of cab side, in lower part. The
manufacturer’s table has the following information:

6
- Trade mark of the manufacturer;
- Identification number;
- Modification;
- gross vehicle weight rating;
- gross axle weight rating;
- gross road-train weight rating;
- gross fifth-wheel coupling load rating;
- Approval number of vehicle t pe (approval of chassis t pe).
Identification number is marked on the right frame girder in rear part.
Vehicle identification number structure and contents:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Х 1 Р * * * * * * * * * * * * * *
______________
*Variable information
Pos. 1-3: Х1Р - manufacturer's international identification code (WMI) -
OJSC “The Automobile Plant “Ural”
Pos. 4-9: t pe and modification identification:
432000 is for 4320-?-7?
43203? is for 43203-1151-71,
432060 is for 43206-?11-71,
442020 is for 44202-0?11-7?,
555700 is for 5557-?-7?
555710 is for 55571-???1-7?
Pos. 10: Manufacturing ear code
Pos. 11-17: Vehicle plant number
Figures used for identif ing manufacturing ear:
В - 2011, С - 2012, D - 2013, Е - 2014.
Cab and engine are marked as components according to OST 37.001.269-96.
Cab as a vehicle component is marked on the right side as viewed in the direction of ve-
hicle motion in the lower part of the door opening. The marking includes 14 signs.
Information on the engine marking is given in the Operation Manual for “YAMZ-536,
YAMZ-5361, YAMZ-5362, YAMZ-5363, YAMZ-5364 Engines”.
The table with the conformit mark is located close to the manufacturer’s plate.

7
1. Safety and Warnin Requirements
1.1 Safety Requirements
1.1.1 Before starting operation check the truck and its drawbars proper functioning.
1.1.2 When drivin a truck, the driver and the passen ers must fasten safety belts.
1.1.3 Do not start the truck engine without ensuring that the truck is put in neutral.
1.1.4 Maintain and repair the truck on a horizontal platform. Brake the truck with the
parking brake, select first gear in the gearbox, switch off storage batteries.
1.1.5 Keep the engine and engine starting heater clean and properl functioning, avoid
fuel and oil leakage: it can cause fire. Do not leave the truck unattended when the engine starting
heater is in operation.
1.1.6 The engine starting heater must be switched off when fuelling the truck.
1.1.7 It is forbidden to heat the engine in closed rooms with poor ventilation.
1.1.8 Cooling (low-freezing) and h draulic fluids are poisonous, and should be handled
with care.
1.1.9 To climb and go down the truck bumper use the running board, central and the ex-
treme left (as viewed in the direction of vehicle motion) grille fins having bushes on the internal
part, as shown in figure 1.
1.1.10 When servicing the engine, fix the hood lift with safet hook 1 as shown in figure
2.
1.1.11 Before dismantling a wheel put additional blocks under the wheels of another axle
that won’t be lifted to avoid truck rolling. Unfasten wheel nuts, jack up the wheel or hoist it with
an other lifting device.
To jack up the front axle put the jack head into the spring clip bed, to jack up the rear bo-
gie put the jack head under the spring mountain bracket.
1.1.12 It’s forbidden to dismantle a truck wheel without preliminar tire deflating.
1-Safet hook
Figure 2 - Hood lift protector
Figure 1 - Method of Using the Running Board
and Grille Fins When Climbing and Going Down
the Bumper

8
1.1.13 It is forbidden to install the assembled wheel with deflated tire and to inflate it
with tire inflation s stem.
1.1.14 The plant warns on strict compliance with safety rules at tire fittin (see par-
a raph “Wheels and Tires”).
1.1.15 When lowering the rear wheel, keep awa from the carrier tilting bracket opera-
tion zone.
1.1.16 Do not take out the ke from the ignition switch before the truck is completel
stopped, as it can lead to loss of vehicle control due to blocking the steering shaft b the anti-theft
device.
1.1.17 The truck cannot be operated without snap ring of the lock, and storage batteries
container cover butterfl nut*.
1.1.18 To avoid storage batteries drop when maintaining them on the truck, the batteries
must be forwarded from the container to the container flap ensuring their secure fixation in the
horizontal position*.
1.1.19 In case of skin exposure to batter fluid, wash the exposed skin with water during
5-10 minutes and sprinkle with 10% water ammonia spirit and then with diluted soda solution.
1.1.20 Check the condition of wire insulation from “+” terminal of the storage batter to
the stator: insulation damage can cause fire.
1.1.21 Welding must be done with compliance with fire safet rules. When using electric
welding, switch off the wires from the alternator, storage batteries and electronic control units,
protect plastic pipes and fuel pipes form damage. Connect the general wire of the welding ma-
chine close to the weld area excluding current flow through bearings and friction pairs.
1.1.22 When grade climbing, choose the correct speed in advance.
1.1.23 When transporting passengers, lock the right cab door b turning the handle
down.
1.1.24 Couple and disconnect the trailer (semi-trailer) on an even horizontal platform.
1.1.25 When operating the winch:
- do not sta under the carried load and close to pulled rope;
- do not bend and tie the rope, it can lead to its damage and breakage. When pulling the
rope over a road, establish securit and put access prohibitor signs.
1.1.26 When operating the autonomous heating unit it is forbidden to:
- sleep in the cab with the autonomous heating unit in operation;
- operate the heating unit with completel or partiall closed intake and exhaust pipes;
- start and operate oiled heating unit;
- fuel the truck with the heat unit in operation;
- leave the heating unit unattended;
- operate the heating unit without gas outlet pipe.
When operating the heating unit remember that careless operation of the unit as well as
its failures can cause fire and exhaust gas poisoning.
________________
* for conventional cab trucks

9
1.2 Warnin s
Normal truck operation and its long life can be onl ensured, if compl ing with all the
recommendations described herein.
1.2.1 Before operating the truck read the paragraphs “CAUTION”, “SAFETY RE-
QUIREMENTS” and “ENGINE START, OPERATION AND STOP” of the Operation Manual
for the engine.
1.2.2 To avoid air in the feed s stem, do not burn out the fuel tank.
1.2.3 To empt the engine cooling s stem completel , put the truck horizontall or with
forward tilt.
1.2.4 Empt the coolant from the engine cooling s stem through the inlet pipe of the wa-
ter pump when the cab heater valve is open and the radiator caps are open.
1.2.5 The truck is equipped with the automatic engine starting heater. For safet reasons
oil is not heated in the oil reservoir. To avoid oil starvation when starting the engine at low tem-
peratures, strictl compl with the recommendations of using engine oils described in the Opera-
tion Manual for “YAMZ-536, YAMZ-5361, YAMZ-5362, YAMZ-5363, YAMZ-5364 Engines”.
1.2.6 When driving the truck from the tracing rut, do not keep the truck with the steering
wheel in its extreme position, as it can lead to oil overheating in the steer h draulic s stem, and,
consequentl , to pump breakage.
For the same reason in case of engine power take off when operating in stead -state
conditions, release the steering shaft load b turning the steering wheel until backlash.
Set the steering stem to the neutral position according to the following procedure:
- with the engine on, turn the front wheels to the extreme right or left position and re-
lease the steering wheel;
- stop the engine;
- when the front wheels partiall return automaticall , set the steering wheel in the mid-
dle within the backlash at the existing wheel position.
After the actions described above the engine can be started and operating in stead -state
conditions can be started.
1.2.7 Select first gear to move the truck from a standstill. Reducing transmission “C” of
ZF9S 1310 TO, 9JS135TA gearboxes can be used at manoeuvring at 10 km/h maximum. Do not
use “C” transmission to climb a slope. Do not move the truck from a standstill b fierce release of
the clutch pedal.
1.2.8 Before moving air pressure in the brake s stem must be 440 kPa (4.7 kgf/cm
2
) at
least. If low pressure indicator of the brake circuit is on, eliminate defects before moving.
1.2.9 When operating the truck in off-road (sand , dirt roads and etc.) check the condi-
tion of the brakes and change brake pads on time.
1.2.10 Before moving check the operation of indicator lamps according to figures 25 and
29.

10
1.2.11 It’s forbidden to operate a dropside truck with the tail gate lowered, as it covers
the rear signalling lights in such a position.
1.2.12 Use the cross-axle differential lock onl in the conditions specified in paragraph
“Truck Driving”.
1.2.13 Differential locks must be switched on and off onl when the truck is completel
stopped. If the lock is not actuated, move the truck from a standstill smoothl and move with
maximal speed of 5 km/h until the lock is actuated, switching the differential lock on.
1.2.14 If the cross-axle differential lock is on, move straight line with maximal speed of
20 km/h.
1.2.15 If the engine hasn't started or has faded b an reason, turn the ke to the initial
vertical position and switch on the stator again in 1-2 minutes.
1.2.16 Remember that frequent engine start-ups and short operation will lead to quick
storage batteries discharge.
1.2.17 It’s forbidden to move the truck b the stator, as it can cause stator breakage and
quick storage batteries discharge.
1.2.17 To avoid alternator breakage, connect the stator wire to the “positive” terminal of
the storage batter , and storage batter switch wire to the “negative” terminal.
1.2.19 Connect wires to the alternator and voltage regulator according to the marking.
1.2.20 Before removing the alternator from the engine switch off the storage batteries.
1.2.21 During long-term truck parking switch off the storage batteries b button 39 of
the switch shown in figure 25 and b button 7 of the switch shown in figure 32.
1.2.22 When starting the engine from an external power source switch on the storage
batteries. It’s forbidden to use a d.c. power suppl with parameters exceeding 24V at 0 (zero) A
and 18.3V at 1000 A, or storage batteries having rated storage capacit var ing more than ± 20
Ah from 190 A.
1.2.23 If the seals are removed from the speedometer or an devices assembl , as well as
from speedometer sensor during the guarantee period without the manufacturer’s approval, the
customer will have no right to claim.
1.2.24 At the air temperature lower than minus 25°С it is allowed to use additional pow-
er takeoff after a short run onl (approximatel 15 km) or oil warm-up in the transfer box b an
other method, e.g. b hot air application.
1.2.25 During the truck movement wheel valves of the tire pressure control s stem
should be open. Close the wheel valves at long-term parking. At the air temperature lower than
minus 35 °С open the wheel valves in 15-20 km after movement start. After opening the wheel
valves air the tire pressure control s stem with tire air (see the paragraph “Tire Pressure Control
S stem”).
1.2.26 When towing, switch the transfer box to neutral to avoid the gearbox breakage.
Towing can be done with 50 km/h maximal speed.
1.2.27 When manoeuvring (especiall reverse manoeuvring), avoid wide articulation an-
gle of the road-train not to damage the towing device.

11
1.2.28 When using a trailer at the air temperature lower than minus 25 °С and before
long-term parking do not leave the rubber buffer of the towing device loaded to avoid the com-
pressed rubber buffer freezing and axial pla in the towing device. When moving the truck for-
ward and backward, uncouple the trailer or unload the rubber buffer.
1.2.29 If a front loader having gross vehicle weight more than 3200 kg is entering the
truck platform, put boards (panels) under its wheels.
1.2.30 Heav small-size cargoes that can cause local platform bend or damage the sides
and seat parts must be put on sleepers (panels) and fixed securel . Place the cargo in a wa to cen-
tre its weight on the platform at the front side.
1.2.31 If compressed air leaked completel after a long-term parking or due to excess air
leakage, and the gearbox is put in a gear, release the gear (put in neutral) before starting the en-
gine. B turning the engine shaft right and left 180° in a wa described in the paragraph “Regula-
tion of Valve Control Component” of the Operation Manual for the engine, or b filling the
pneumatic s stem with compressed air from the auxiliar truck through the towing valve, release
the clutch.
1.2.32 Transportation of a cargo or trailer (vehicle) towing exceeding maximal allowable
weights described herein is forbidden.
1.2.33 Operation of the truck is forbidden with a trailer:
- with drawbar coupling according to GOST R 41.55-2005, if safet pin does not over-
hand the lever (see paragraph “Drawbar Control” of the Installation and Operation Manual for
Drawbar Coupling. Such Manual is supplied with the truck);
- with drawbar coupling according to GOST 2349-75 with an unfixed latch of the towing
hook b a lock pin (see paragraph “Undercarriage” hereof).
1.2.34 When operating the truck at air temperature lower than 30
о
С, add eth l alcohol to
the h draulic fluid of clutch linkage (20% of the total volume).

12
2 Technical Specifications
2.1 Technical Specifications of 6х6 Trucks with Conventional Cab.
2.1.1 Basic weight and load parameters of trucks are given in Table 1.
Table 1
Parameters
4320-0111-71,
4320-0111-73,
4320-0111-75
4320-0911-70,
4320-0911-72
44202-0311-70,
44202-0311-72,
44202-0311-74
44202-0511-70,
44202-0511-72,
44202-0511-74
Truck kerb weight
including driver
’ s
weight, kg;
8655 9340 8125 8245
Kerb weight dis-
tribution, kg:
- on front axle;
- on rear bogie;
4040
4615
4315
5025
4115
4010
4165
4080
Gross vehicle
weight, kg 15385 20070 20350 20470
Gross vehicle
weight rating, kg 17300 22500 21300 21300
GVWR distribu-
tion, kg:
- on front axle
- on rear bogie;
5300
12000
6500
16000
5300
16000
5300
16000
Maximal trailer
(semi-trailer) weight,
kg
11500
19100*
Maximal road-
train weight, kg 28800 34000 27300 27420/37275*
___________________
* When driving on 1-4 categor roads
2.1.2 Truck unit parameters are given in Table 2.
Table 2
Parameters
4320-0111-71,
4320-0671-71,
44202-0311-70,
44202-0511-70
4320
-
0111
-
73,
4320-0671-73,
4320-0911-72,
44202-0311-72,
44202
-
0511
-
72
4320-0111-75
44202-0311-74
44202-0511-74
En ine
Model, t pe YAMZ-53622-10 and its
configurations
YAMZ-53642-10 and its
configurations
YAMZ-53602-10
and its configura-
tions
C linders quantit and
location 6-row

13
Break-over of Table 2
Parameters
4320-0111-71,
4320-0671-71,
44202-0311-70,
44202-0511-70
4320
-
0111
-
73,
4320-0671-73,
4320-0911-72,
44202-0311-72,
44202
-
0511
-
72
4320-0111-75
44202-0311-74
44202-0511-74
Working displace-
ment, cm
3
6650
Compression rate 17.5
Maximum power,
kW/min-
1
176.5 (2300±25) 210 (2300±25) 229 (2300±25)
Maximum torque,
Nm/min-
1
900 (1300-1600) 1130 (1300-1600) 1226 (1300-1600)
Fuel Feed S stem Accumulator-t pe with electronic control
Air feed s stem for the
engine
with carton replaceable-element dr air filter
Transmission
Clutch Diaphragm, friction, dr , discharge-t pe, one disc, h draulic drive with
pneumatic booster
Gearbox YAMZ-0905
5 - forward, 1 - reverse
YAMZ-1105
5 - forward, 1 - reverse
Number of gears
YAMZ-0905, YAMZ-
1105
Mechanical, three-wa , with s nchronizer assembl for the gears II, III, IV
and V
axle ratios I - 5.22, II - 2.90, III - 1.52, IV - 1.00, V - 0.71, reverse - 5.22
Transfer Box Mechanical, two-speed with c lindrical inter-axle locking differential
Number of gears 2
axle ratios 1.04
2.15
Main gear Dual-ratio, double reduction right-angle
axle ratios 7.49
Undercarria e
Frame Riveted, with forged girders of variable sections
Towing devices Front - two rigid towing hooks,
Rear - two-side drawbar coupling according to GOST R 41.55-2005, prod-
uct t pe С50-5 (except Ural 44202)
Truck suspension:
front Conventional, on two longitudinal half-elliptic springs, with h draulic tele-
scopic shock absorbers
rear Conventional, centre-pin-supported with torque arms, on two longitudinal
half-elliptic springs
Tires for modifications: Model Size Load index Speed cate-
gor
Static radius,
m
4320-0111-71,
4320-0671-71,
4320-0111-73,
4320-0671-73,
ОИ-25 14.00-20 146;147 G 0.585
KAMA-
URAL
390 /95R20 147 J 0.570
KAMA-1260 425/85R21 146 J 0.590
У-4, ИД-304 12,00R20 150/146 J 0.526

14
Break-over of Table 2
Tires for modifications: Model Size Load index Speed cate-
gor
Static radius,
m
44202-0311-70,
44202-0511-70,
44202-0311-72,
44202-0511-72
KAMA-1260 425/85R21 146 J 0.590
У-4, ИД-304 12,00R20 150/146 J 0.526
4320-0911-70,
4320-0911-72
KAMA-
1260, KA-
MA-1260-1
425/85R21 156 G 0.585
О-184 425/85R21 156 J 0.580
У-4, ИД-304 12,00R20 150/146 J 0.526
Steerin wheel
Steer RBL C-700V (German )
“ screw - ball screw nut - rod - quadrant ” with in-
stalled h draulic booster
axle ratio 18.2...21.5
Brake Systems
Primar Brake S stem Pneumatic dual-braking drive, with distribution on front axle and on rear
bogie, with ABS, brake gears of all wheels are drum-t pe.
Parking Brake S stem Pneumatic drive with spring-t pe brake actuators braking the brake gears of
middle and rear axle wheels
Secondar Brake S stem Engine retarder, installed
Electrical Equipment
Wiring diagram Single-wire, negative terminals of current power suppl are connected with
truck batter . Nominal voltage is 24V
Alternator AAN 8172 AC alternator manufactured b ISKRA, 2800 W capacit , works
with the installed voltage regulator
Stator AZF 4137 manufactured b ISKRA, electromagnetic, maximal capacit is
4.0 kW
Storage Batteries Two 6СТ-190N3 batteries Other storage batteries can be installed, including
batteries of 140 Ah capacit .
Storage batteries switch Leak-tight with remote control panel, with lock s stem
Cab
Cab All-metal, two-doors, three-seats with a rest area (for 44202-0511-70, 44202-
0511-72 models) and without a rest area (for 4320-0111-71, 4320-0911-70,
44202-0311-70, 4320-0111-73, 4320-0911-72, 44202-0311-72 models)
Platform Metal flat bod , with rear and side dropsides, with canop 4320-0111-71,
4320-0671- 71, 4320-0911-70, 4320-0111-73, 4320-0911-72, 44202-0311-70,
44202-0511-70, 44202-0311-72, 44202-0511-72

15
End of Table 2
Fifth-Wheel Coupling 50-11 according to GOST 28247-89, two-degree-of-freedom. King pin lock-
ing arm jaws are closed with semi-automatic lock, hole diameter for the king
pin is 50.8 mm (for semi-trailer trucks 44202-0311-70, 44202-0511-70,
44202-0311-72, 44202-0511-72, 44202-0311-74, 44202-0511-74)
Dedicated Equipment
(is optionally installed)
Power Takeoff With a flange or a pump, pinion-t pe, single-speed, actuated b the gearbox
Additional Power Takeoff Is actuated through a sliding sleeve from the main shaft of the transfer box
Winch Drum-t pe with worm gearbox and belt brake, equipped with the rope
guideplate
2.2 Technical Specifications of Chassis of 6х6 Truck with Conventional Cab
2.2.1 Basic weight and load parameters of trucks are given in Table 3.
Table 3
Parameters
4320-
1151-71
4320-
1151-73
43203-
1151-71
4320-
1951-70
4320-
1951-72
4320-
1951-74
4320-
1972-70
4320-
1972-72
4320-
1972-74
4320-
1982-70
4320-
1982-72
4320-
1982-74
5557-
1151-70
5557-
1151-72
5557-
1151-74
55571-
1151-70
55571-
1151-72
55571-
1151-74
55571-
1551-70
55571-
1551-72
55571-
1551-74
Chassis kerb
weight, kg
7630 7915 8155 8280 8455 7965 8040 8340
GVWR distribu-
tion, kg:
- on front axle;
- on rear bogie;
3950
3680
4095
3820
4315
3840
4380
3900
4495
3960
3760
4205
4105
3935
4265
4075
Gross vehicle
weight rating, kg
17300 22500 22500
GVWR distribu-
tion, kg:
- on front axle;
- on rear bogie;
5300
12000
6500
16000
6500
16000

16
Break-over of Table 3
Parameters
4320-
1151-71
4320-
1151-73
43203-
1151-71
4320-
1951-70
4320-
1951-72
4320-
1951-74
4320-
1972-70
4320-
1972-72
4320-
1972-74
4320-
1982-70
4320-
1982-72
4320-
1982-74
5557-
1151-70
5557-
1151-72
5557-
1151-74
55571-
1151-70
55571-
1151-72
55571-
1151-74
55571-
1551-70
55571-
1551-72
55571-
1551-74
Maximal trailer
weight, kg
11500
11500
11500
Maximal road-
train weight, kg
28800 34000
34000
En ine
432
0
-
1151
-
71, 4320
-
1671
-
71,
4320-1951- 70, 4320-1972-70
4320-1982-70, 5557-1151- 70,
43203-1151-71,
55571-1151-70, 55571-1551
-70,
4320
-
1151
-
73, 4320
-
1671
-
73,
4320-1951 -72, 4320-1972-72
4320-1982-72, 5557-1151-72,
55571-1151-72, 55571-1551-
72,
4320
-
115
1
-
75, 4320
-
1671-75, 4320-1951-
74, 4320-1972-74
4320-1982-74, 5557-
1151- 74, 55571-1151-
74, 55571-1551-74
Model, t pe YAMZ-53622-10 and
its configurations
YAMZ-53642-10 and its
configurations
YAMZ-53602-10
and its configura-
tions
C linders quantit and lo-
cation
6
– row
Engine capacit , cm
3
6650
Compression rate 17.5
Maximum power,
kW/min-
1
176.5 (2300±25) 210 (2300±25) 229 (2300±25)
Maximum torque,
Nm/min-
1
900 (1300-1600) 1130 (1300-1600) 1226 (1300-1600)
Fuel Feed S stem Accumulator-t pe with electronic control
Air feed s stem for the en-
gine
with carton replaceable-element dr air filter
Transmission
Clutch Diaphragm, friction, dr , discharge-t pe, one-disc, drive with air-oil
booster
Gearbox YAMZ-0905 YAMZ-1105
5-forward
ZF 9 S 1310 ТО
9 - forward, 1 - reverse
Number of gears 5 - forward, 1 - reverse
YAMZ-0905, YAMZ-1105 Mechanical, three-wa , with s nchronizer assembl for the gears II, III, IV
and V
axle ratios I-5.22, II -2.90, III-1.52, IV-1.00, V-0.71, reverse -5.22
ZF 9 S 1310 ТО Mechanical, three-wa with s nchronizer assembl . Consists of the main
four-gearbox and auxiliar gearbox, gearbox remote control

17
Break-over of Table 3
Parameters
4320-
1151-71
4320-
1151-73
43203-
1151-
71
4320-
1951-70
4320-
1951-72
4320-
1951-74
4320-
1972-70
4320-
1972-72
4320-
1972-74
4320-
1982-70
4320-
1982-72
4320-
1982-74
5557-
1151-70
5557-
1151-72
5557-
1151-74
55571-
1151-70
55571-
1151-72
55571-
1151-74
55571-
1551-70
55571-
1551-72
55571-
1551-74
Axle ratios I-9.48, II -6.58, III-4.68, IV-3.48, V -2.62, VI -1.89, VII -1.35,
VIII -1.00, IХ -0.75, reverse - 8.97
Transfer Box Mechanical, two-speed with c lindrical inter-axle locking differential
Number of gears 2
axle ratios 1.04
2.15
Main gear Dual-ratio, double reduction right-angle
axle ratios 7.49
Undercarria e
Frame Pressed, riveted
Towing devices
- front - shunting forks with king pins (cabover trucks);
- rear - two-side drawbar coupling according to GOST R 41.55-2005,
product t pe С50-5 (except Ural 44202)
Truck suspension:
front Conventional, on two longitudinal half-elliptic springs, with h draulic tel-
escopic shock absorbers
rear Conventional, centre-pin-supported with torque arms, on two longitudinal
half-elliptic springs
Tires
For modifications: Model Size Load
index
Speed
categor
Static
radius, m
4320-1151-71, 4320-1671-
71, 4320-1151-73, 4320-
1671-73, 4320-1151-75,
4320-1671-75,
43203-1151-71
ОИ-25 14.00-20 146;147 G 0.585
KAMA-
URAL
390/95R20 147 J 0.570
KAMA-1260 425/85R21 146 J 0.590
У-4, ИД-304 12.00R20 150/146 J 0.526
4320
-
1951
-
70, 4320
-
1972
-
70, 4320-1982-70, 5557-
1151-70, 55571-1151 – 70,
55571-1551-70,
4320-5951- 70, 4320-5972-
70, 4320-5982-70, 5557-
5151-70, 55571-5151
– 70,
55571-5551- 70,
4320-1951- 72, 4320-1972-
72, 4320-1982-72, 5557-
1151-72, 55571-1151
– 72,
55571-1551-72,
4320-1951- 74, 4320-1972-
74, 4320-1982-74, 5557-
1151-74, 55571-1151
–
74,55571-1551-74
KAMA-
1260, KA-
MA-1260-1
425/85R21 56 G 0.585
О-184 425/85R21 156 J 0.580
У-4, ИД-304 12.00R20 150/146 J 0.526

18
End of Table 3
Steerin wheel
Steer (t pe, mark-
ing)
RBL C-700 (German ) ,
“ screw - ball screw nut - rod - quadrant ” with h draulic
booster
Brake Systems
Primar Brake S s-
tem
Pneumatic dual-braking drive, with distribution on front contour and on rear
bogie, with ABS, brakes of all wheels are drum-t pe.
Parking Brake S s-
tem
Pneumatic drive with spring-t pe brake actuators braking the brakes of middle and
rear axle wheels
Secondar Brake
S stem
Engine retarder ,compressor-t pe, installed
Cab
Cab All-metal: two-doors, three-seat with rest area (for 4320-1671-71, 4320-1671-73,
4320-1671-75, 4320-1972-70, 4320-1972-72, 4320-1972-74; 55571-1551-70,
55571-1551-72, 55571-1551-74;) or without rest area (for 4320-1151-71, 4320-
1151-73, 43203-1151-71, 4320-1951-70, 4320-1951-72, 4320-1951-74, 5557-
1151-70, 5557-1151-72, 5557-1151-74, 55571-1151-70, 55571-1151-72, 55571-
1151-74) or four-doors, six-seat (for 4320-1982-70, 4320-1982-72, 4320-1982-74)
2.3 Technical Specifications of 6х6 Cabover Trucks
2.3.1 Basic weight and load parameters of trucks are given in Table 4.
Table 4
Parameters
4320-3171-78
4320-3171-80,
4320-3171-82
4320-3971-78,
4320-3971-80,
4320-3971-82
44202-3511-78,
44202-3511-80,
44202-3511-82
Truck kerb weight includ-
ing driver
’ s weight, kg;
9430 9730 8770
GVWR distribution, kg:
- on front axle
- on rear bogie;
5020
4410
4750
4980
4905
3865
Gross vehicle (road-train)
weight, kg 20080 20380 20920
Gross vehicle weight rat-
ing, kg 22500 22500 21800

19
End of Table 4
GVWR distribution, kg
- on front axle
- on rear bogie;
6500
16000
6500
16000
5800
16000
Maximal trailer (semi-
trailer) weight, kg 11500 19100
Maximal road-train weight,
kg 33300/34000 28020/38045*
______________________
* When driving on 1-4 categor roads
2.3.2 Truck unit parameters are given in Table 5.
Table 5
Parameters
4320-3171-78,
4320-3971-78,
44202-3511-78
4320-3171-80,
4320-3971-80,
44202-3511-80
4320-3171-82,
4320-3971-82,
44202-3511-82
Model, t pe YAMZ-53622-10 and
its configurations
YAMZ-53642-10 and its
configurations
YAMZ-53602-10 and
its configurations
Engine capacit , cm
3
6650
Compression rate 17.5 1122 (1300-1600) 1226 (1300-1600)
Maximal capacit , kW
(at engine torque, min-
1
)
176.5 (2300±25) 210 (2300±25) 229 (2300±25)
Air feed s stem for the
engine
with carton replaceable-element dr air filter
Gas Exhaust S stem With muffler, end of the exhaust pipe is truck axle directed
Transmission
Clutch ZF SACHS MFZ 430, YAMZ-182-76 or Hammer 43033, diaphragm, fric-
tion, dr , exhaust-t pe, one-disc, h draulic drive with pneumatic booster
Gearbox YAMZ-0905
5 - forward, 1 - reverse
YAMZ-1105 or ZF 9S
1310 ТО or 9JS135ТА
5-Forward, 1-reverse
(for YAMZ-1105)
9 - forward, 1 - re-
verse (for
ZF 9 S 1310
ТО, 9JS135ТА)
ZF 9 S 1310 ТО or
9JS135ТА
9 - forward, 1 - reverse
Number of gears
YAMZ-0905, YAMZ-
1105
Mechanical, three-wa , with s nchronizer assembl for the gears II, III, IV
and V
axle ratios I-5.22, II-2.90, III-1.52, IV-1.00, V-0.71, reverse -5.22
ZF 9 S 1310 ТО Mechanical, three-wa with s nchronizer assembl . Consists of the main
four-gearbox and auxiliar gearbox, gearbox remote control
axle ratios I-9.48, II-6.58, III-4.68, IV-3.48, V-2.62, VI-1.89, VII-1.35,
VIII-1.00, IХ-0.75, reverse-8.97