Relays and fuses Maz Euro 4
Content
- Block in the cabin
- Fuses and relays MAZ 5340M4, 5550M4, 6312M4 (Mercedes, Euro-6).
- Maz 5440 / 6430 euro - fuses and relays
- Block in the cabin
- Mounting block of fuses and relays MAZ
- Functions of fuses and relays in a MAZ car
- Placement and meaning of fuses and relays
- More articles
- Mounting block of fuses and relays MAZ
- Functions of fuses and relays in a MAZ car
- Placement and meaning of fuses and relays
Maz 5440 and Maz 6430 - the general designation of two series of truck tractors of the Minsk Automobile Plant, produced from 1997 to the present with various modifications - changes 544005, etc.) and generations (Euro 3 4 5 6). In this article you will find a description of the most popular fuse and relay blocks Maz 5440 and Maz 6430 with diagrams and their location.
Block in the cabin
The main fuse and relay box is located in the passenger compartment, in the center of the dashboard, on the passenger side and is closed with a protective cover.
The execution of the block and the purpose of the elements in them depends on the year of manufacture and the level of equipment of the maz. The current designation of your vehicle will be printed on the back of the protective cover. See the offer and, in case of difficulty, contact the dealer.
Option 1
scheme
Fuse description
Option 2
Photo - scheme
designation
Location of the main elements of the ECS engine
1 - start control relay (intermediate); 2 relays blocking the battery; 3, 4 – fuel heating relay; 5, 6 - fuse block of the ESU and BDI engine; 7–button for diagnostics of the engine ESU; diagnostic connector 8-ISO9141; FU601 - electric motor fuse ESU 10A; FU602 - ESU 15A engine fuse; FU603 - fuse 25A for the ESU engine; FU604, FU605 - 5A BDI fuses
Option 3
scheme
Fuse description
Of course, these are far from all the block options and their purposes that were used at MAZ. But only the most common ones.
If you have additions to this material, write them in the comments.
Fuses and relays MAZ 5340M4, 5550M4, 6312M4 (Mercedes, Euro-6).
Fuses and relays MAZ 5340M4, 5550M4, 6312M4 (Mercedes, Euro-6).
Replacement of fuses and switching devices.
KRU block covers.
Check.
Switchgear blocks are combinations of components for controlling the electronic and electrical systems of equipment and their power supply (fuses, control units, relays, resistors and diodes).
The electronics switchgear unit is located under cover 1. The electrical distribution unit (SCU) is located under cover 2. The fuse and other switching tables are located on the inside of covers 1 and 2.
Opening/closing lids.
Fuses and switching devices.
The switching units are equipped with flat fuses with fusible inserts.
Replace fuses and other switching devices only when the vehicle is switched off.
The color of the fuse does not correspond to its classification and depends on the manufacturer.
Forbidden!
Block of switching equipment of electronic systems.
The switchgear block 9 uses fuse blocks 1, 2, 3 and 4. Each block can have up to four fuses, the positions of which are indicated by the letters A, B, C, D on the block body. To check the fuses, remove covers 5, 6, 7, 8. The ratings and purpose of the fuses are indicated in the table.
| Block | Position | Goal | Nominal |
| one | BUT | Power supply for the trailer ABS information module from terminal 15 | 5А |
| Б | Tractor ABS supply from terminal 15 | 5А | |
| В | Tractor and trailer ABS indicator power supply | 5А | |
| GRAM | Power supply of the electronic air suspension control system from terminal 15 | 5А | |
| two | BUT | Trailer ABS supply from terminal 30 | 10А |
| Б | Tractor ABS supply from terminal 30 | 10А | |
| В | Tractor ABS supply from terminal 30 | 10А | |
| GRAM | Power supply for the electronic air suspension control system from terminal 30 | 10А | |
| 3 | BUT | Supply of the EDC/SCR system from terminal 30 | 15А |
| Б | SCR system power supply from terminal 30 | 5А | |
| В | Power supply of the EDC system from terminal 15 | 5А | |
| GRAM | SCR system power supply from terminal 15 | 5А | |
| 4 | BUT | To book | |
| Б | To book | ||
| В | To book | ||
| GRAM | To book |
The purpose of relay 10 depends on the installed electronics.
Location of relays and fuses in the junction box.
Source
Maz 5440 / 6430 euro - fuses and relays
Maz 5440 and Maz 6430 - the general designation of two series of truck tractors of the Minsk Automobile Plant, produced from 1997 to the present with various modifications - changes 544005, etc.) and generations (Euro 3 4 5 6). In this article you will find a description of the most popular fuse and relay blocks Maz 5440 and Maz 6430 with diagrams and their location.
Block in the cabin
The main fuse and relay box is located in the passenger compartment, in the center of the dashboard, on the passenger side and is closed with a protective cover.
The execution of the block and the purpose of the elements in them depends on the year of manufacture and the level of equipment of the maz. The current designation of your vehicle will be printed on the back of the protective cover. See the offer and, in case of difficulty, contact the dealer.
Option 1
scheme
Fuse description
Option 2
Photo - scheme
designation
Location of the main elements of the ECS engine
1 - start control relay (intermediate); 2 relays blocking the battery; 3, 4 – fuel heating relay; 5, 6 - fuse block of the ESU and BDI engine; 7–button for diagnostics of the engine ESU; diagnostic connector 8-ISO9141; FU601 - electric motor fuse ESU 10A; FU602 - ESU 15A engine fuse; FU603 - fuse 25A for the ESU engine; FU604, FU605 - 5A BDI fuses
Option 3
scheme
Fuse description
Of course, these are far from all the block options and their purposes that were used at MAZ. But only the most common ones.
If you have additions to this material, write them in the comments.
Source
Mounting block of fuses and relays MAZ
The MAZ fuse and relay mounting block contains devices responsible for the safety and performance of the vehicle's electrical equipment. About the role of fuses and relays in the complex, and separately about the location of devices in the MAZ vehicle assembly, read in the following article.
Functions of fuses and relays in a MAZ car
An important role in the electrical system of the MAZ car is played by fuses - small-sized elements that do not affect the operation of the car's systems, but in the event of a malfunction, they are simply necessary to prevent the failure of the car's electrical components.
Relays and fuses in a car vary in location, strength, and appearance. Its main function is to ensure the normal operation of the car's electrical circuit. With significant voltage drops, they take on the main "shock" and, burning out, prevent the failure of more expensive electrical components.
To facilitate maintenance, check and condition monitoring, replacement of failed fuses on a MAZ vehicle (as well as on other vehicles), they are combined in one MAZ fuse and relay mounting block. The block contains information with inscriptions explaining the purpose of a particular fuse or relay, as well as indicating the required resistance rating of the device.
Placement and meaning of fuses and relays
All safety devices in the MAZ car, which are responsible for the normal operation of electrical equipment, are located in three blocks.
block 111.3722
In the first block there are fuses for 30 and 60A (one each):
• 60A - main fuse;
• 30A - a device responsible for the supply of autonomous heating, pre-heating of technical devices.
The main purpose of the main safety device is to protect the generator and battery from reverse polarity of the elements and to prevent short circuit and its negative consequences when starting the engine from the power source. Almost all consumers of electricity in the car are powered from it, except for the alarm, which is connected directly to the battery. All electrical consumers connected to the generator have separate safety devices.
Only the following units operate without safety devices:
• a winding of disconnection of weight;
• starter relay;
• headlight switch;
• instrument shutdown and automatic winding.
Safety block 23.3722
In the second block there are 6A fuses in the amount of 21 pieces. Almost every fuse has its own designation, which helps to determine which electrical equipment it is responsible for:
• 127 — speedometer, voltage indicator, speed control device;
• Fuse responsible for sound signals;
• 57 — brake signals;
• 90 - the work of the washer and wipers;
• 120 — wheel and axle locks, tow bar lights, reversing lights;
• 162 — heated mirrors;
• Power supply of the onboard control system;
• P51 - is responsible for instrument illumination;
• 55 - fog lights fuse;
• Kch.52 — side lights fuse on the right side;
• Г.52 — marker lights fuse on the left side;
• F.56 — lamp on the left (dipped beam);
• Zh.56 — lamp on the right (dipped beam);
• 53 - fuse for additional high beam;
• K.54 — lamp on the right (high beam);
• Z.54 - lamp on the left (high beam);
• G.80 - heater fan fuse;
• Zh.79 - alarm actuation;
• K.78 - fuse responsible for direction indicators;
• С.31 - safety device for indicators of protection of the head and control lamps;
• 50 - Fog lights fuse (rear).
This block also contains eleven relays, each of which is responsible for the operation of certain electrical equipment. They are designated by the letter "K" and a number (for example, K3):
Safety block PR112
This block contains a 16A fuse (technical equipment and reserve), as well as nine 8A fuses:
• Valve - fuse for the cooling system fan clutch;
• G.172 - body lighting;
• Czech crowns. 179 - operation of fuel heaters;
• R.171 - timer and radio;
• G.59 - car lighting safety device;
• 3,131 — refrigerator, emergency lamp holder, pneumatic signal;
• To book;
• C.133 - air dryer protection device;
• O.161 - engine stop valve fuse.
More articles
Screws, bolts and nuts placed on a table or in a plastic container are easily lost and damaged. This problem with hardware temporary storage is solved with the help of magnetic trays. All about these fixtures, their types, design and device, as well as the choice and use of palettes, read in this article.
In the suspension of trucks, buses and other equipment, elements are provided that compensate for the reactive moment - reactive thrust. The connecting rods with the beams of the bridge and the frame are carried out with the help of fingers - read about these details, their types and design, as well as about replacing the fingers in the article.
Many models of MAZ vehicles are equipped with a clutch release transmission with a pneumatic booster, in which the transmission activation valve plays an important role. Learn everything about MAZ clutch control valves, their types and device, as well as the selection, replacement and maintenance of this part in the article.
When repairing the piston group of the engine, difficulties arise with the installation of pistons - the rings protruding from the grooves do not allow the piston to freely enter the block. To solve this problem, piston ring mandrels are used - learn about these devices, their types, design and application from the article.
Source
Mounting block of fuses and relays MAZ
The MAZ fuse and relay mounting block contains devices responsible for the safety and performance of the vehicle's electrical equipment. About what function the fuses and relays perform in the complex and separately, about the location of the devices in the block of the MAZ car
Functions of fuses and relays in a MAZ car
An important role in the electrical system of the MAZ car is played by fuses - small-sized elements that do not affect the operation of the car's systems, but in the event of a malfunction, they are simply necessary to prevent the failure of the car's electrical components.
Relays and fuses in a car vary in location, strength, and appearance. Its main function is to ensure the normal operation of the car's electrical circuit. With significant voltage drops, they take on the main "shock" and, burning out, prevent the failure of more expensive electrical components.
To facilitate maintenance, inspection and condition monitoring, the replacement of faulty fuses on a MAZ vehicle (as well as on other vehicles) is combined into one mounting block. The block contains information with inscriptions explaining the purpose of a particular fuse or relay, as well as indicating the required resistance rating of the device.
Placement and meaning of fuses and relays
All safety devices in the MAZ car, which are responsible for the normal operation of electrical equipment, are located in three blocks.
block 111.3722
In the first block there are fuses for 30 and 60A (one each):
• 60A - main fuse;
• 30A - a device responsible for the supply of autonomous heating, pre-heating of technical devices.
The main purpose of the main safety device is to protect the generator and battery from reverse polarity of the elements and to prevent short circuit and its negative consequences when starting the engine from the power source. Almost all consumers of electricity in the car are powered from it, except for the alarm, which is connected directly to the battery. All electrical consumers connected to the generator have separate safety devices.
Only the following units operate without safety devices:
• a winding of disconnection of weight;
• starter relay;
• headlight switch;
• instrument shutdown and automatic winding.
Safety block 23.3722
In the second block there are 6A fuses in the amount of 21 pieces. Almost every fuse has its own designation, which helps to determine which electrical equipment it is responsible for:
• 127 — speedometer, voltage indicator, speed control device;
• Fuse responsible for sound signals;
• 57 — brake signals;
• 90 - the work of the washer and wipers;
• 120 — wheel and axle locks, tow bar lights, reversing lights;
• 162 — heated mirrors;
• Power supply of the onboard control system;
• P51 - is responsible for instrument illumination;
• 55 - fog lights fuse;
• Kch.52 — side lights fuse on the right side;
• Г.52 — marker lights fuse on the left side;
• F.56 — lamp on the left (dipped beam);
• Zh.56 — lamp on the right (dipped beam);
• 53 - fuse for additional high beam;
• K.54 — lamp on the right (high beam);
• Z.54 - lamp on the left (high beam);
• G.80 - heater fan fuse;
• Zh.79 - alarm actuation;
• K.78 - fuse responsible for direction indicators;
• С.31 - safety device for indicators of protection of the head and control lamps;
• 50 - Fog lights fuse (rear).
This block also contains eleven relays, each of which is responsible for the operation of certain electrical equipment. They are designated by the letter "K" and a number (for example, K3):
Safety block PR112
This block contains a 16A fuse (technical equipment and reserve), as well as nine 8A fuses:
• Valve - fuse for the cooling system fan clutch;
• G.172 - body lighting;
• Czech crowns. 179 - operation of fuel heaters;
• R.171 - timer and radio;
• G.59 - car lighting safety device;
• 3,131 — refrigerator, emergency lamp holder, pneumatic signal;
• To book;
• C.133 - air dryer protection device;
• O.161 - engine stop valve fuse.
