Groove with Cummins Engine Fuel Consumption • Technical Data

Bus PAZ-3204. Photo GAZ

PAZ-3204 is a Russian high-floor small-class bus produced by the Pavlovsky Bus association. It is designed to replace the classic PAZ-3205 model, mass-produced since 1989. The model was first introduced in 2006. It is a bus similar in size to the PAZ-3205, but with modern finishing and a comfortable interior . Small-scale production began in 2007.

Detailed description, device

The PAZ-3204 bus, 7.5 m long, is the base model of the PAZ bus family, designed to operate on urban and suburban routes, as well as in the corporate transportation segment.

Bus PAZ-3204. Photo GAZ

Modern design, compliance with the requirements of environmental safety and passenger comfort, simplicity and ease of operation are successfully combined with effective performance, which makes this model a leader in the Russian market in its class.

School version: in accordance with GOST R 51160-98 “Buses for transporting children. Technical requirements".

Operation and repair

The PAZ-4234 bus is quite easy to maintain and repair. The presence of a large number of spare parts helps to speed up the elimination of breakdowns or the replacement of components that have become unusable. But it must be remembered that due to constant improvements to the bus, spare parts must be selected strictly for a specific modification.

Technical characteristics of the PAZ-4234 bus

Parts for motor vehicles are produced not only by the manufacturer, but also by third parties. To make it easier to find and purchase spare parts, there are catalogs. When diagnosing faults in electrical wiring, it is necessary to take into account that there are two separate circuits: one goes to the passenger compartment, the other goes to the engine.

PAZ-4234 is one of the most famous models of Russian buses, which is determined by its simplicity of design and reliability. The machine is extremely undemanding to operate, has good capacity, and repair time is minimal. Thanks to this, this model is popular among domestic and even foreign users.

History of creation

Initially, the PAZ-3204 index was assigned to the all-wheel drive version of the PAZ-3203 series buses (PAZ-3205 prototypes). In 1973, a single prototype was produced, which successfully passed state tests and was recommended for mass production, but it suffered the same fate as the entire PAZ-3204 series (1973 model).

In March 2009, 2006 model was modernized The design of the bus was somewhat simplified. From then on, it began to be designated PAZ-320402-03, the air suspension gave way to a spring one, the bus underwent a facelift - it received new headlights and windows with rubber seals instead of the modern glued ones. In addition, the front passenger door was moved closer to the front axle of the bus, and the floor level was raised. The bus began to be produced with several interior layout options:

• city ​​(17 seats, total capacity - 53 people);
• urban and suburban (21 seats, total capacity - 50 people);
• suburban (25 seats, total capacity - 43 people).

Groove Vector NEXT Features of use

• PAZ 320405-04, 17 seats.

PAZ 32054 - review of a small class bus • Since Soviet times, the main consumers of the PAZ-3205 were villagers who used these buses to travel from remote villages to regional centers.

Modifications

Bus PAZ-320414-04 Vector 8.8. Photo RusbusinessAuto

• PAZ-320401
• PAZ-320401-01
• PAZ-320401-03
• PAZ-320402
• PAZ-320402-01
• PAZ-320402-03 - with Cummins engine
• PAZ-320402-04 - YaMZ-534 engine
• PAZ-320402-05
• PAZ-320402-05 (2E, 2R, 2F)
• PAZ-320402-05 (2F)
• PAZ-320402-07
• PAZ-320302-08 - ZMZ engine
• PAZ-320302-11
• PAZ-320302-12
• PAZ-320302-22
• PAZ-320402-14
• PAZ-320403-01 - on a Tata chassis with screen doors
• PAZ-320405-04 “Vector Next” (5P, 5S) - on the GAZ-C40R13 chassis
• PAZ-320412-03 - extended with a Cummins engine 185 hp. (urban, suburban, intercity)
• PAZ-320412-05
• PAZ-320412-05 “Vector”
• PAZ-320412-10 - extended gas cylinder, Cummins ISB 5.9 G195 engine
• PAZ-320412-10 “Vector”
• PAZ-320412-14
• PAZ-320414 - with a double-leaf rear door
• PAZ-320414-14 “Vector” (EA)
• PAZ-320414-04
• PAZ-320414-05
• PAZ-320435-04 “Vector Next” (NS) - on the GAZ-C40R13 chassis with a low-floor rear section
• PAZ-320470
• PAZ-320470-03 - school, Cummins 4ISBe 185-B engine
• PAZ-320470-05 - school, Cummins ISF3.8s3168 engine
• PAZ-320475-04 “Vector Next”

Popular modifications

Among the entire list of modifications, the most interesting is the PAZ-320412 - a middle-class vehicle, which is an extended version of the PAZ-3204, its length is 8.56-8.8 m.

The body is all-metal, carriage-type, entrance doors are 2 with emergency buttons. The model was launched into mass production in 2012.

There are two versions - for urban and suburban routes. The main areas of application are intracity routes and corporate transportation. The salon can have 4 different types of design - for 15, 21, 24, 29 seats. Full capacity – 52-60 people. The driver's seat may have an individual door. The driver's seat has a seat belt and is adjusted according to the angle of inclination, the height of the headrest, the distance to the steering column and the height of the cushion.

Bus PAZ-320412. Photo YarCamp

The design of the PAZ-320412 bus includes:

• pneumatic braking system;
• power steering;
• auxiliary braking system;
• ABS and ASR systems;
• KAAZ bridge;
• gas analyzer sensors;
• as standard - an autonomous heater, for the distribution of heated air in the cabin there are 4
• heaters equipped with their own fans.

Power units used:

• YaMZ-534 diesel engines with four cylinders and turbocharging;
• Cummins ISF 3.8 is a gas version with six cylinders, providing power up to 197 horsepower.

Gearboxes:

• five-speed manual transmission;
• six-speed automatic Allison brand.

With any type of gearbox and a total weight of 11.5 tons, the buses can reach a speed of 100 km/h. Fuel consumption of the most loaded equipment is up to 24 l/100 km. In terms of environmental friendliness, the buses correspond to Euro-3 – Euro-5 classes. Fuel – diesel or gas. The volume of the diesel fuel tank is 95 l, the gas cylinder is 62 l. Gas models are also equipped with a reserve tank for diesel fuel, designed for 50 liters.

Additional equipment:

• GLONASS navigation system, which allows you to accurately determine the location of the bus;
• seat belts;
• heated mirrors;
• fog lights;
• tachograph.

Paz 3204 - the transformations were beneficial

Over the 80 years of its existence, the Pavlovsk Bus Plant has taken a strong place in the market for the production of medium and small class passenger transport. The automobile plant produced about 700,000 vehicles for urban and intercity transportation. Various bus models have been the backbone of city fleets for many years.

Modern comfortable bus

The PAZ 3204 bus rolled off the plant’s assembly line in 2007. It is actively used in commercial passenger transportation on urban and suburban routes, has good maneuverability in dense traffic, and has a turning radius of 8.1 meters.

The body of the new PAZ 3204 wagon layout is installed on a base 3800 mm long with a 4x2 wheel arrangement. Bus height 2880 mm, bus length 7600 mm, width 2410 mm. The interior has a standard ceiling height like all PAZ models – 1985 mm. It is ventilated using vents in the side windows and hatches with rubber seals in the cabin roof.

Buses of various modifications of this model are designed to transport up to 52 people. Depending on the configuration, the cabin has 18 or 19 seats for passengers. The seats are in-line, the installation of additional ones does not interfere with the comfort and ability of passengers to move around the cabin.

When producing the first buses of this modification, the designers installed an air suspension on the vehicle. It caused constant negative feedback from PAZ 3204 consumers, so it was replaced with a dependent spring one. Both the front and rear suspensions are equipped with telescopic shock absorbers, while the rear suspension also has corrective springs. The bus is designed for operation in various road conditions. Since 2009, the new Paz 3204 has been available with spring suspension.

The steering mechanism is equipped with a hydraulic booster, and comfortable working conditions have been created for the driver. In addition to replacing the suspension, the designers have modernized the interior of the car: the Paz 3204 floor has become single-level, and thanks to the installation of 245/70 R19.5 tires, the level of the platform has been lowered, which has brought additional convenience to passengers when boarding the bus.

The autonomous pre-heater and interior heaters are powered by the engine cooling system. The interior of the PAZ 3204 is heated by 4 heaters; a separate one is provided for the driver’s workplace.

Bus technical characteristics

The car is available with three engine models. Either a YaMZ-534 engine with a 150 l/s, four-row diesel engine, or more powerful (168 and 183 horsepower) German Cummins with a displacement of 4.5 liters is installed. Engine models meet Euro-3 and Euro-4 environmental standards.

When fully loaded, a car can travel at a speed of 90 km/h, consuming 20 liters of fuel per 100 km. All models are equipped with a 105 liter fuel tank. Some bus modifications are equipped with an automatic transmission, but more often a five-speed manual transmission with remote drive is installed.

Based on the PAZ 3204, the PAZ 320402-05 bus was created with a modified appearance. The designers replaced the headlights and interior trim. Compared to earlier models, this car is designed for eight years of operation (versus a 6-year warranty for previous versions). The bus body is galvanized, with special anti-corrosion treatment. For emergencies, the bus is equipped with hammers for breaking windows installed in rubber seals.

PAZ 320402-05 is used not only on city passenger routes, but is also used to transport students as a school bus with appropriate equipment for their safety (seat belts, separate places for transporting school bags and briefcases), the presence of emergency stop buttons, the possibility of emergency door opening .

The difference between this modification and the basic one is also the increase in seats for passengers (up to 25 when using the bus on intercity flights), and the presence of a forced interior ventilation system.

The driver's seat in PAZ 320402-05 is separated from the passenger compartment by a partition with a sun curtain; a handrail for passengers is installed on the partition. The driver's seat provides storage space for personal belongings.

The technical characteristics of the PAZ 320402-05 wheelbase have not changed. Inside the bus, the front door (both pneumatically operated doors are 650 mm wide) has been moved closer to the front axle. The bus is equipped with German diesel engines with turbocharging and intercooling of charge air, environmental safety class Euro-3, Euro-4.

Fuel consumption of PAZ 320402-05 is at least 20 liters per 100 km. The load on the front axle of the bus is 3090 kg, on the rear axle – 6690 kg. The total weight of the vehicle is 9780 kg. Due to the increase in the rear overhang, the turning radius of the PAZ 320402-05 bus increased to 9.1 meters.

The PAZ 3204 brake system meets modern safety requirements for passenger transportation in terms of technical characteristics. PAZ 320402 (another bus modification) was recognized as the best in its class at several passenger transport exhibitions, since it was one of the first models equipped with a motor brake as standard.

The brake operating system is divided along the axes, dual-circuit with pneumatic drive. The parking brake of the PAZ 3204, as well as all modifications (PAZ 320402, PAZ 320402-05, PAZ 320402-03), also with a pneumatic drive, acts on the rear wheels. Either of the two circuits of the service brake system can serve as a spare brake circuit. All bus models are equipped with an anti-lock braking system.

All PAZ 3204 buses are practical to use due to the availability of spare parts, thanks to a well-developed dealer network. If we consider the technical characteristics of all modifications, they differ only in the details of the interior layout in terms of the number of seats, engine modifications, gearboxes and axles. The price of new buses of the PAZ 3204 model ranges from 1,900 thousand rubles to 2,400 thousand.

Photo of the bus

Source: https://promplace.ru/passenger-transport-staty-i-obzory/paz-3204-1393.htm

Basic information, characteristics

Manufacturer/manufacturer where the equipment is produced/manufactured. Pavlovsky Bus is a Soviet and Russian manufacturer of small and medium class buses. Located in the city of Pavlovo, Nizhny Novgorod region. Part of the GAZ group. Since 2005, bus production has been carried out by PAZ LLC, a 100% subsidiary of Pavlovsky Bus PJSC.

Purpose. Urban and/or suburban.

Class. Small or medium.

Body type. Carrier, carriage layout.

Body resource. 8 years.

Performance indicators

• Favorable cost of ownership
• Minimum payback period
• Minimum fuel consumption ratio per passenger
• Availability of spare parts
• Affordable price

• Air conditioner
• 2 roof electric fans
• Audio/video system
• Tinted double glazed windows
• Various passenger seat options
• "Talking City" system for visually impaired people
• Cashless payment and electronic passenger counting system

*Is an optional extra and may not be included as standard.

Basic characteristics

Specifications

Reference. Some technical characteristics differ depending on the type of fuel. PAZ-3204 is equipped with a diesel engine, PAZ-3204 CNG is equipped with a gas engine, others are common to both modifications.

Fuel type. Diesel or gas.

Fuel tank capacity. 95 or 360 (5 pieces of 62 l and 1 piece of 50 l).

Curb and technically permissible weight, kg. 5460…5580/10000 or 6100…6160/10000.

Load on front/rear axle based on technically permissible weight, kg. 3500/6500.

Minimum turning radius, m. 8,1.

Steering gear. With hydraulic booster.

Brake system. Pneumatic, double-circuit, drive with division into circuits along the axes, with ABS.

Where are Cummins ISF2.8 engines used?... Tube damage

Shenlong SLK 6126 F1A, Huanghai DD6125K01, Shuchi YTK 6126B, Sunlong SLK 6122 F2A, Higer KLQ 6118G 6118GL 6118GS, Higer KLQ6129Q, King Long XMQ6127C, Yutong ZK6118HGA, Yutong ZK6119HA, Yutong ZK6129H, Yutong ZK6737D, Zhongtong Creator LCK6125H;. The ISLe series are compact, technologically advanced and powerful diesel engines equipped with a Common Rail fuel system, an electronic unit that controls fuel injection into the cylinders and a Jacobs compression brake as an option on some models.

Chassis characteristics

Driver's seat of the PAZ-3204 bus. Photo GAZ

Brand. KAAZ.

Main bridge. Rear.

Wheel formula. 4x2.

Wheelbase, mm. 3800.

Ground clearance/ground clearance, mm. 250.

Clutch type. Single-disk diaphragm type with a damper device on the driven disk.

Tires. 245/70 R19.5.

Anti-lock braking system (ABS). Present.

Engine/powertrain characteristics

Control fuel consumption per 100 km at:

• 60 km/h. — 19 l.;
• 80km/h. - 22 l.

ISXe15 : Tube damaged

• The engine starts normally, but smokes. This may indicate the presence of air in the fuel system; it is necessary to bleed it, and also check the suction valve for leaks.

There may be a problem with the oil filter. Some models have two oil filters, for coarse and fine oil purification. Check both.

Inspect the cooling system pipes; one of them may be damaged or deformed, which prevents the normal circulation of coolant.

Belt for Gazelle Cummins • The cylinder head can be completely rebuilt.

Where to buy, rent, refurbish

You can buy a PAZ-3204 bus or other models produced under this brand from employees of companies that are collected in the corresponding section of our website. In addition to sales services, enterprises provide the opportunity to rent and lease a vehicle. Re-equipment of buses, which many companies specialize in, improves the functional and design characteristics of the equipment, and repairs eliminate malfunctions.

Brake system: Features of use

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Comfort* • The technical specifications were prepared and approved by Glavavtobusprom by the end of 1974.