Electrical diagram of Ural 4320 with Yamz 238 engine

Ural 4320 The off-road truck has been produced with various modifications and changes from 1977 to the present day, mainly with diesel engines. During this time, the Urals underwent modernization several times. In this article you will find a detailed description of fuses and relays Ural 4320 with block diagrams and photographs, as well as a complete electrical wiring diagram.

The purpose of the elements in the blocks and their location may differ from those presented and depend on the year of manufacture and level of equipment of your Ural 4320.

Electrical equipment

Select a directory subsection

to view the diagram and list of spare parts.

Dashboard

№	Photo	vendor code	Name	Pieces in Fig.	Weight	Price	To order
LV211-3714329	Cartridge with plug	8	18,00
2212.3803010-13	Blockage indicator BMKD	2	92,40
4320Х-3805013	Left instrument panel (without speedometer) (AZ URAL)	1	1388,00
UK170M-3810010	Oil pressure gauge receiver	1	Call
UK171M-3807010	Coolant temperature gauge	1	Call
PA 8046-4	Speedometer	1	Call
220082-P29	Screw M5-6ghx20	5	Call
252269-P29	Lock washer 6	2	Call
Read also:  Reviews from owners of the Honda CBR 400 (CBR400RR) motorcycle	432007-3805012-10	Right instrument panel (tropical version) (AZ URAL)	1	2892,00
2531.3813010	Tachometer	1	1032,00
UB170M-3806010	Fuel gauge receiver	1	Call
AP171A-3811010	Current indicator	1	Call
4322-3805114	Stub	1	21,60
43202-3805015	Switch instrument panel (AZ URAL)	1	1156,00
VK343-3709000-02.16	Road train sign switch	1	156,00
VK343-3709000-01.08	Light switch	1	156,00
3842.3710.11.04	Rear fog light switch	1	Call
4320-3805127	Stub	2	0,004	15,60
4320-3710014	Frame	1	6,84
P147-3709000-03.11	Cab heater switch	1	102,00
PR120-3722000	Fuse box	2	192,00
220081-P29	Screw M5-6gx8	1	Call
250464-P29	Nut M5-6N	1	Call
252003-P29	Washer 5	3	Call
252153-P2	Washer 5L	1	Call
11.3704000-01	Push-button windshield washer switch	1	108,00
329.3710000	Hazard warning light switch	1	Call
P305-3709010-0	Light switch	1	Call
375-3709012	Light switch knob (instrument panel) Original (AZ Ural JSC)	1	90,00
250615 P29	NUT М12Х1.25-6Н	1	0,01	25,80
1101.3816010	Tire pressure gauge	1	Call
PD511E-3803010-U-HL	Right indicator lamp block	1	Call
11.3704000-01	Push-button windshield washer switch	1	108,00
P147-3709000-07.09	Wiper switch	1	198,00
43202-5301214	Stub	1	9,00
11.3704000-01	Push-button windshield washer switch	1	108,00
VK416B-3709000-01	Instrument panel light switch with rheostat	1	Call
4320-3710012	Rheostat handle Original (JSC AZ Ural)	1	112,00
250513-P29	Nut M10x1-6N	1	Call
PD512E-3803010-U-HL	Left indicator lamp block	1	Call
2212.3803010-16	Battery charging indicator	1	Call
2212.3803010-34	Air filter clogged indicator	1	120,00
1901.3830010	Two-pointer pressure gauge	2	Call

Electrical diagram

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Description

1	Front lamp
2	Side turn signal repeater
3	Low beam headlight
4	Connection panel
5	Horn relay
6	Torch candle EFU
7	High pitch electric signal
8	Fuse
9	Pre-heater motor
10	Coolant temperature gauge sensor
11	Low tone electrical signal
12	Spark plug for pre-heater
13	High voltage source
14	Pre-heater motor switch
15	Heater Plug Switch
16	Generator
17	Voltage regulator
18	Electromagnetic valve EFU
19	Condenser filter
20	Flare relay
21	Engine compartment lamp
22	Voltage Regulator Trip Relay
23	Additional resistor with electrothermal relay
24	Signal switch
25	Emergency oil pressure drop sensor
26	Oil pressure sensor
27	Oil filter contamination sensor
28	Emergency coolant overheat sensor
29	Pre-heater solenoid valve
30	Solenoid valve, fan clutch
31	Battery Switch Interlock Relay
32	Fan Clutch Relay
33	Fuel heater, preheater
34	Pre-heater solenoid valve switch
35	Fuel heating switch
36	Fan Clutch Switch
37	Thermo relay
38	Starter
39	Lower fuse box
40	Upper fuse box
41	Cab heater switch.
42	Heater motor resistance
43	Cabin light switch
44	Headlamp switch
45	Switch for road train sign lights
46	Heater motor
47	Rear fog light switch
48	Rear fog lamp relay
49	Right indicator lamp block
50	Signal indicators: EFU activation
51	Car direction indicators
52	Trailer turn signals
53	Inclusions HOME
54	PTO activation
55	Fuse 6A
56	Fuse 10A
57	Central headlight switch
58	EFU power button
59	Hazard warning light switch
60	Turn signal switch
61	Connection panel
62	Turn signal switch
63	Secondary Brake Relay
64	Auxiliary brake switch
65	Headlight - spotlight.
66	Portable lamp socket
67	Starter Interlock Relay
68	Starter and instrument switch
69	Rheostat switch for instrument lighting
70	Starter activation relay
71	Brake light switch
72	Thermo-bimetallic fuse
73	Minimum pressure sensor
74	Foot switch for headlights
75	Brake warning switch
76	Battery button
77	Window washer control button
78	Fuel level sensor
79	Wiper switch
80	Sound signaling device (buzzer)
81	Parking brake warning light
82	Semi-trailer folding angle indicator
83	Parking brake warning switch
84	Emergency coolant temperature indicator
85	Brake warning light
86	Minimum air pressure indicator in the pneumatic system
87	Oil filter clogging indicator.
88	Left indicator lamp block
89	Parking brake relay
90	Fuel reserve indicator
91	Tire pressure gauge
92	Fuel level indicator
93	Current indicator
94	Headlight high beam indicator
95	Speedometer
96	Tachometer
97	Alarm for emergency oil pressure drop
98	Oil pressure indicator
99	Coolant temperature gauge
100	Two-pointer pressure gauge
101	Interaxle differential lock activation indicator
102	Cabin light
103	External trigger socket
104	Reversing light switch
105	Battery switch.
106	PTO activation sensor
107	Switch on sensor HOME
108	Road train sign lantern
109	Rechargeable batteries
110	Windshield washer motor
111	Wiper motor
112	Rear fog lamp
113	Back lamp
114	Body signal switch
115	Reversing light
116	License plate light
117	Trailer socket
118	Cross-axle differential lock activation sensor
119	Underbody light

Scheme of URAL 4320 engine electrical equipment, gear shifting and braking system

The layout of the Ural 4320 truck with high driving performance and increased cross-country ability makes this vehicle extremely versatile.

Ural 4320 is used both in geological exploration and by enterprises with difficult operating conditions for equipment, as well as the armed forces of the Russian Federation. Thanks to the well-thought-out layout of the URAL 4320 and the arrangement of various components and assemblies, it has established itself as a reliable vehicle in operation and practical in maintenance.

The successful combination of the URAL 4320 layout of the main components and assemblies in combination with a reliable and practical engine allows the URAL 4320 to be used both for transporting people and for delivering goods.

The universal design of the URAL 4320 chassis also allows it to be used as a tractor, dump truck or a platform for installing various equipment and special equipment based on the URAL 4320 design.

Brake system URAL 4320 diagram

The diagram of the URAL 4320 brake system is presented in the form of a full-color schematic plan. The URAL 4320 brake system is designed to change the speed of movement or completely stop the URAL 4320, regardless of the speed, direction of movement and load-bearing load.

Brake system URAL 4320 diagram

The URAL-4320 brake system diagram is a combination of three brake systems - service, parking and auxiliary.

Scheme URAL 4320 brake system

The URAL 4320 is equipped with a pressure control system and brake condition monitoring system. The atmospheric cylinders contain sensors for signaling the minimum air pressure in the URAL 4329 brake circuit.

Scheme of the brake system URAL 4320

In the diagram of the URAL 4320 brake system, the brake drive is mixed (pneumohydraulic), dual-circuit, with separate braking of the wheels of the front and two rear axles. The control is carried out by a pedal in the driver's cabin, connected by levers and rods to a two-section brake valve.

Scheme URAL 4320-brake system diagram

Diagram of the URAL 4320 service brake system with drum type and internal pads with complete interchangeability for all wheels. Each brake mechanism has two hydraulic cylinders housed in one housing.

diagram URAL 4320 - diagram of the brake system, service and parking brake

Brake pads are installed on supporting axles. The working brake mechanism is adjusted as the linings wear out by reducing the gap between the lining and the drum using eccentrics.

How to connect a Ural 4320 car generator

Car generator Ural-4320-10, Ural-4320-31
The waterproof alternator (Fig. 87) is a 12-pole synchronous electric machine with a built-in rectifier unit VBG-7G or BPV7-100, with forced ventilation.

The generator has the following pins: “+” - for connecting to

batteries and load; two terminals “Ш” - for connection with the terminal “Ш” and “+” of the voltage regulator; pins “Ш” are made in the form of a two-pin plug block; “-” for connection to the voltage regulator housing; conclusion "

» — for connection to the tachometer.

Technical characteristics at ambient temperature (15-35)°C Rated voltage, V 28

Rated current, A 47

Rated power, W 1000

Rotor speed at voltage 28 V, min-1:

with a load current of no more than 30 A 1900

Maximum rotation speed, min-1 8000

Excitation current, A 1.5-1.7

To avoid failure of the generating set, the following is not allowed:

— engine operation with the battery switch off;

— disconnecting the wires from the positive and negative terminals of the generator and disconnecting the plug connectors of the generator and the voltage regulator while the engine is running;

- checking the serviceability of the generator set by closing the jumper of the wires of the plug connectors “+” and “-” at the generator and

— checking the serviceability of the generator using a test lamp or megohmmeter;

— turning on the battery with reverse polarity or connecting the positive terminal of the generator to the negative terminal of the battery;

— closing the voltage regulator terminals “+” and “Ш” to each other.

To ensure the generator operates properly, keep it clean.

Check the operation of the generator using the current indicator. At average engine speed, the current indicator should show a charging current, the value of which decreases as the battery charge is restored. With a serviceable and fully charged battery, a serviceable generator and the correctly selected level of regulated voltage, the current indicator arrow should be at o.

Clean the generator from dust by blowing it with compressed air. The generator should be repaired in a specialized workshop.

To check the condition of the brush assembly, remove the brush holder. Check the ease of movement of the brushes in the brush holders. Replace brushes protruding from the brush holder channel by less than 5 mm. The force of pressing the brushes against the commutator when the spring is compressed to 17.5 mm should be 0.19-0.25 N (19-25 gf). If wear on the slip rings exceeds 0.5 mm in diameter, grind them. The minimum permissible ring groove diameter is 29.3 mm.

The ball bearings are sealed and lubricated for their entire service life. If there is binding or excessive noise, replace the bearings.

To check the serviceability of the generator on your car, you must have a DC voltmeter with an accuracy class of at least 1.5. A voltmeter is connected between the “+” and “-” terminals of the generator. The check is carried out at

switched on batteries at medium engine speed (about 2000 min-1). After running the engine for ten minutes, turn on the high beam headlights and record the voltmeter readings, which should be 26.6-29.2 V.

Carry out a control check of the generator on a special stand that provides a smooth change in the rotation speed of the generator rotor up to 5000 min-1 and has measuring instruments with an accuracy class of at least 1.5. The circuit for checking the generator is shown in Fig. 88. If the generator is working properly, then its parameters must correspond to the technical specifications.

Rice. 88. Scheme for checking the electrical characteristics of the generator on the stand:

1—generator; 2—current indicator;

3 - voltmeter; 4—load; 5 — rechargeable battery; 6 — additional resistance

A generator failure may occur due to a failure of the rectifier unit. Check the unit on a disassembled generator with the stator winding disconnected (Fig. 89). Check the rectifier unit from a battery connected to its terminals through a test lamp. When checking positive diodes, connect the battery wire to the positive bus of the rectifier unit, and connect the second wire alternately through the test lamp to the diode terminals. When checking negative diodes, connect the battery to the negative bus and a test lamp to the diode terminals.

Serviceable rectifier block diodes conduct current in one direction

and, therefore, the lamp lights up only when the diodes are turned on in the conducting direction. If the control lamp lights up or does not light up when it is turned on in both directions, then the unit diode is faulty. If a faulty diode is detected, replace the rectifier unit.

Do not check the rectifier unit:

— from a voltage source of more than 24 V;

- from an alternating current source.

When installing the generator on the engine, keep in mind that the rear bolt securing the generator to the bracket is secured in a split support, and the leg of the front cover of the generator is attached without clearance. Therefore, when installing the generator, before tightening the generator mounting bolts, loosen the split mount pinch bolt, tighten the generator mounting bolts, and only then fully tighten the rear generator mount pinch bolt.

Generator disassembly procedure:

— unscrew the two screws securing the brush holder and remove the brush holder;

— unscrew the coupling bolts and remove the cover from the side of the slip rings along with the stator;

— unscrew the nuts securing the phase leads from the rectifier unit and separate the stator from the cover;

- Unscrew the pulley mounting nut and remove the pulley, fan, and support sleeve. Remove the cover from the shaft.

URAL 4320 gear shift diagram

The URAL 4320 gear shift scheme is a five-speed manual gearbox with a double-disc clutch for YaMZ-236 and YaMZ-238 engines.

URAL 4320 gear shift diagram

The design of the five-speed variable gearbox URAL 4320 KPP-236U is designed specifically for URAL vehicles with YaMZ-236 and YaMZ-238 Euro-0.1 class engines without turbocharging with a double-disc clutch, has synchronizers in 2-3 and 4-5 gears.

Updated URAL 4320 series

The oil tank, shown in Figure 5.3.8, is stamped. At the top of it

There is a filler neck and a filter mounting flange. At the bottom

drain hole

oil, closed with screw plug 2, suction pipe 1. In the filler neck there is

Filter 3 is installed. The neck is closed with a threaded cap 5

with stamped

holes connecting the tank cavity with the atmosphere. The cover is equipped with a 4th oil level indicator, which has lower and upper marks. The oil level in the tank should be within these marks. To check the level (with the platform lowered), unscrew the plug with the indicator and insert it all the way into the thread. To prevent dust and dirt from getting inside the oil tank, a hair packing 6 is installed in the cover 5.

1-suction pipe; drain; 3-filter filled with wine; 4-level indicator cover; 6-lid packing; oil tank

Figure 5.3.8 - Oil tank

2-plug th throat-oil; 5-7 filter

1-pipe; 2-corporeal; 4-patru guardian ball

Figure 5.3.9 -F

With; 3-element filter side; 5-valve pre-wick

Oil tank filter

The oil tank filter is attached to the flange on the drain line. If the filter element is excessively clogged, the pressure in the drain line increases, as a result of which ball valve 5 opens, according to Figure 5.3.9, and the oil is drained into the tank, bypassing the filter element.

GENERATOR 700 W | OPPOZIT.RU | motorcycles Ural, Dnepr, BMW

The resistance between the windings must be the same. The engine is started and the rotor rotates in the stator winding, voltage is supplied to the excitation winding through the PP and the generator is excited. As practice has shown, pieces of nails driven into holes cope with the task. If the voltage is outside the technical specifications, replace the regulator. In particular, automatic ignition timing was introduced, since the motorcycle received a new power unit, and the old manual control of the timing advance did not meet the technical requirements.

The voltmeter reading is noted and, by bending the shank in the voltage relay, the spring tension is increased, and with it the generator voltage by 0.4 V. An additional rectifier arm is also introduced into the electrical circuit. During this period, you can slightly increase the generator voltage.

On a URAL car there is a voltage regulator. If the voltage is outside the technical specifications, replace the regulator. Adjust the position of the front wedge stops 9 on the closed lid 6 of the container 10 after installing the batteries 1 and the upper clamps into the container. If they come out of the special sockets, the phase leads may break off during generator operation.

If the engine continues to run, then the generator is working. The work consists of connecting a generator or battery to the mains at a certain moment. Thus, by turning the additional resistance on and off, a certain generator voltage will be maintained. After installing the batteries on the car, adjust the position of the front wedge stops 9, for which loosen the tightening of the bolts 8 securing the stops 9 to the cover 6, move the stops 9 along the elongated holes of the cover 6 away from you until they stop and tighten the bolts 8.

We recommend reading:

Contact Information. Thus, by turning the additional resistance on and off, a certain generator voltage will be maintained. Remove the cover from the shaft.

But you need to follow some rules. The generator covers undergo minor modifications. Replace brushes protruding from the brush holder channel by less than 5 mm. Features of the development of electrical equipment of Ural motorcycles The six-volt circuit over the years ceased to meet technical regulations, and on subsequent models, manufacturers installed central wiring designed to operate 12V equipment: Ti-volt battery; Let's consider their structure and interaction.

Thus, by turning the additional resistance on and off, a certain generator voltage will be maintained. If the voltage is outside the technical specifications, replace the regulator. Period of years The wiring of the Ural motorcycle has also proven itself quite well - if at first the designers had concerns about loss of contact due to possible corrosion of the metal frame, then operation has shown the reliability of the single-wire electrical circuit. Scooters and mopeds Ural motorcycle wiring diagram Ural motorcycles have a unipolar battery terminal. If after several trips it turns out that the battery is not charging enough, you can further increase the voltage of the generator, but not higher than 15 V. Ural motorcycle wiring diagram

Transfer case URAL 4320 diagram

Transfer case URAL 4320 diagram. The transfer case (URAL 4320 diagram) is a mechanical, two-stage transmission, with an asymmetrical center differential, which is installed using four rubber shock absorbers on the URAL 4320 frame.

Transfer case URAL 4320 diagram

As you can see in the URAL 4329 transfer case diagram, the transfer case differential is of a planetary type with four satellites, 30 sun gears and 29 ring gears.

Scheme URAL 4320 - transfer case diagram

The moment from the sun gear is transmitted to the front axle drive shaft 35, and from the ring gear 29 to the rear axle drive shaft 21.

URAL-4320

If a box with a winch and an additional power take-off is installed on the URAL 4320 transfer case diagram, then when the bushing is turned on, the drive shaft gears are lubricated with high-pressure oil, which is supplied from the URAL 4320 transfer case housing using a plunger pump.

How to connect a Ural 4320 car generator

Bibliographic link to the article:

// Modern equipment and technologies. 2012. No. 3 [Electronic resource]. URL: https://technology.snauka.ru/2012/03/310 (access date: 09/11/2020).

Ph.D. tech. Sciences Gumelev V.Yu.,

Ph.D. tech. Sciences Kartukov A.G.,

The Ural-4320-31 car is one of the main brands of military automotive equipment (VAT) used in the Armed Forces of the Russian Federation.

The readiness to use vehicles is largely determined by the technical condition of the electrical equipment, and primarily by the power supply system. The power supply system includes sources of electrical energy: the main one is a generator set; additional – batteries. When the engine is running, the generator must provide power to the vehicle's power receivers and charge the batteries. The relay regulator consists of one regulatory element - a voltage regulator.

A generator with a voltage regulator forms a generator set. The Ural-4320-31 vehicle is equipped with a generator 1702.3771 or G 288E [1]. The non-contact voltage regulator 2712.3702 is used to maintain a constant voltage in the vehicle's electrical network. It is an electronic device with 3 silicon transistors, unshielded, dust-splash-proof. The voltage regulator is installed under the hood of the URAL-4320-31 car on the front panel of the cab.

Checking the generator set instruments and its circuits can be carried out in the simplest ways in accordance with the methodology proposed below.

With serviceable and fully charged batteries, a working generator and the correct level of regulated voltage, the current indicator arrow should show a small charging current or be at o).

The reasons for such fluctuations in instrument needles are as follows:

– oiling of the slip rings and freezing of the generator brushes (during vibration during operation of the car engine, the contact between the brushes and the rotor slip rings is periodically broken and restored);

Relays and fuses

URAL relays and fuses are located in the cab on the mounting block to the right of the instrument panel under a removable cover. The serial number of fuses in the list corresponds to their numbering on the blocks.

1-relay for unloading terminal “15” (P2); 2-starter relay (P1); 3, 4, 6, 8, 9, 11 - fuse blocks; 5-relay for unloading terminal “15” (R3); 7-windshield wiper relay (R4); 10-rear fog lights relay; 12-diagnostic connector; 13-relay pneumatic brake signal switch (R12); 14-mirror heating relay (R11); 15-stop signal relay (R10); 16-horn relay (R9); 17-high beam relay (R8); 18-low beam relay (R7); 19-side light relay (R6); 20-relay additional rear fog lights (R5).

CAR ELECTRONICS REPAIR

Steering diagram URAL 4320

Steering diagram for URAL 4320 with hydraulic booster. The steering consists of a steering column, a steering mechanism, a steering gear, and a hydraulic booster.

Steering diagram URAL 4320

As can be seen in the steering diagram, when the URAL 4320 steering wheel rotates, torque is transmitted to the distributor shaft. In this case, the shaft rotates relative to the screw at a small angle, simultaneously twisting the torsion bar.

Scheme URAL 4320 steering

Outlaws MC

Using the probes of the device in the “continuity” mode, check each terminal of the stator winding for a short circuit to the housing. There should be no short circuits. This affected all components and parts, both large and small, including even electrical equipment and the generator set. A design feature of the voltage regulator is that the adjustable voltage switch consists of reed switches and a magnet that controls them, which is located in the handle that switches voltage levels.

The difference in the above diagrams is in the relay regulator.

In particular, automatic ignition timing was introduced, since the motorcycle received a new power unit, and the old manual control of the timing advance did not meet the technical requirements. The section of the power rectifier not involved in the operation of the generator is shown in Fig.

Make sure that the upper clamps are installed in the guides I. To check the condition of the brush assembly, remove the brush holder.

The remaining two diodes in the motorcycle modification of the generator are not used and are not connected anywhere.

The generator can also be checked by connecting one end of the wire to a portable lamp to ground, and the other to terminal I of the relay-regulator, while the wires should be disconnected from terminals Ш and И.

Figure 5 — Checking the tension of generator belts using the PPNR device When operating a vehicle, it is necessary to protect the belts from oil and fuel, monitor their tension and, if necessary, adjust it. How to check a generator on a Ural motorcycle

Relay diagram URAL 4320

Fuse diagram URAL 4320

The upper fuse block protects: 1st insert - fog lamp circuit; 2nd insert - headlight lamp circuit: 3rd insert - circuit of portable and engine compartment lamps, power supply circuit for control lamp units; 4 - I - circuit of the cabin lamp, road train sign lights and brake light lamps; 5 - I - circuit of the electric motor of the heater and reversing light; 6 - I - power supply circuit for devices and buzzer.

The lower block protects the circuits: 1st insert - left side light;
2 - i - right side light and instrument lighting; 3 - i - low beam of the left headlight; 4 - i - low beam of the right headlight; 5 - i - high beam of the left headlight; 6 - i - high beam right headlight