Bus transportation is one of the promising types of business. Entrepreneurs often face the question: “How to choose the right one and not waste money?” The PAZ-4234 bus can serve as a solution to this problem. Reasonable price, quick payback and high maintainability are the three main advantages of this bus over others.
PAZ-4234: technical characteristics
- Weight - 6640
- Maximum permissible weight - 9995
- Front axle load - 3890
- Rear axle load - 6215
- Wheel formula - 4x2
- Drive - rear
- Maximum speed - 95 km/h
- Fuel tank capacity – 105 l
Dimensions
- Length - 8165
- Width - 2530
- Height - 2890
- Wheelbase - 4345
- Minimum turning radius - 9.3m
- Cabin ceiling height - 1965
- Number of doors - 2
- Door width - 726
- Number of seats - 27-30
- Total number of places – 50
The lifespan of the body is 6-8 years. The bus is painted with durable paint that can withstand any weather conditions.
The ceiling height in the cabin is 1965 mm, and the body height is 2940 mm.
The fuel tank has a capacity of 105 liters. Transport is characterized by moderate fuel consumption. Thus, the fuel consumption of the PAZ-4234 at partial load is 18.4 liters of diesel fuel per 100 km, and at maximum load it is 23-24 liters.
The bus is equipped with a modern diesel engine MMZD-245.9E3, which meets Euro3 standards for urban transport.
Engine power – 100 kW or 136 horsepower. The maximum speed that this vehicle can reach is 95 km/h.
The model is equipped with an engine pre-heater. Engine cooling is liquid. It is important to note that the manufacturer does not recommend pouring water into the heating system, as this threatens corrosion and sharply reduces service life.
The fuel is passed through filters twice for purification.
Transmission – manual 5-speed.
The PAZ-4234 bus is equipped with power steering - this increases the controllability of the vehicle.
The brake system consists of two subsystems: working and parking, and uses a pneumatic operating principle. The working part consists of two circuits, one for each axis, as a result of which, if necessary, the vehicle can suddenly reduce speed until it comes to a complete stop. In the parking part, cameras with spring energy accumulators are installed, which brakes the rear wheel pair. There is also a spare parking system.
All PAZ-4234 are required to have an ABS anti-lock braking system, which allows you not to lose control during emergency braking.
In general, the bus turned out to be very maneuverable, which is very convenient when driving on busy city roads. The latest bus modifications made after 2011 meet the more stringent requirements of the modern Euro-4 standard.
Buses designed to transport children are equipped with a spare emergency door. The seats have a high, comfortable backrest and seat belts. There is even a special compartment at the rear of the bus for storing school backpacks.
The bus suspension includes four telescopic shock absorbers, which reduces shaking and vibration in the cabin.
Maximum axle load: front - 3890 kg, rear - 6105 kg.
During the winter season, the interior is heated using 5 heating devices. The bus has a liquid heating system that removes heat from the engine to the passenger compartment. To ensure a healthy microclimate in the warm season, a ventilation mode is provided using open windows and hatches.
The driver's cabin is comfortable and spacious. The latest releases of the PAZ-4234 allow the driver's seat to be adjusted in height. Behind the driver is a bulkhead designed to prevent glare from the interior.
Advantages of interior design
Spacious interior, equipped with two doors for convenient entry and exit of passengers. The advantage of the seats in the cabin of this modification is their softness and comfortable backrests.
The large gap between the seats makes it possible to sit without pushing into the front rows. The height of the cabin from ceiling to floor is 197 centimeters, which is comfortable for tall owners.
The driver's seat is adjustable, and it is also possible to adjust the angle of the seat back.
The heating system is liquid, driving heat to five heaters. Ventilation is not provided for in the bus structure; the ventilation process occurs through well-designed hatches and windows. With their help, air circulates throughout the cabin, which makes it possible to maintain an optimal microclimate in the summer.
general description
PAZ 4234 is an extended two-door modification of model 32053. The first bus came off the assembly line in 2002 and since then more than 12 thousand copies have already been produced. Its main advantages are its low price and unpretentiousness in operation; it can be used in a wide variety of conditions, both in urban transportation and in suburban traffic.
Of course, there are also some disadvantages, for example, the body is not the most durable, the service life of which is 5 years, the disadvantages also include a stiff suspension and not the most economical engine, but this is more than compensated for by the price of the bus. The cost of a new bus starts from 2.3 million rubles, depending on the configuration, which is quite a bit for a middle-class bus.
Guarantee
The new bus is under the manufacturer's warranty. The warranty depends on the type of engine installed and is expressed as a time interval or mileage value. Thus, for the PAZ-4234 model, the plant establishes the following warranty conditions:
- for a model with an MMZ engine, the warranty period is 1.5 years or 50 thousand kilometers;
- for a model with a Cummins engine, the warranty period is 1.5 years 6 months or 75 thousand kilometers.
Bus service
The PAZ-4234 bus is very easy to operate and repair. A large number of spare parts makes it easier to repair or replace faulty components. But it should be remembered that due to the fact that the bus is subject to constant improvements, spare parts must be sought strictly for a specific modification. Parts for the bus are produced not only by the manufacturer, but also by a large number of third-party companies. There are catalogs that simplify the selection and ordering of units.
When diagnosing faults in electrical wiring, you need to know that the circuits are separate: one for the interior and the other for the engine.
conclusions
The following advantages made the equipment in demand for Russian territories:
- Quick profit at affordable prices.
- Reliable suspension, road conditions do not affect this.
- Spare parts that are easy to obtain and repairable. Even an air filter is not difficult to get.
- Trouble-free operation on any route.
- Improving the technical characteristics that the interior also has.
Among owners of domestic models, PAZ 4234 is one of the most popular brands. Reliability and simplicity of design largely contribute to the choice. I am also pleased with the minimum downtime for repairs if necessary. Thanks to this combination of parameters, the payback is really fast.
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Design
PAZ 4234 is a high-floor bus with a carriage-type frame on a supporting frame. The main difference from the standard model is the presence of two doors and a body lengthened by a meter. Otherwise, the bus has a recognizable design, but has already undergone one restyling in 2007. The ground clearance is 27 cm, which allows it to be used in a wide variety of conditions, including on bad roads.
Thanks to the elongated body, the capacity of the bus has also increased. The number of seats has reached 30, with a maximum capacity of 50 passengers. If anyone remembers the old models of grooves, then their seats, although soft, were not very comfortable during a long drive, and even on uneven roads they shook as if in sea waves.
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Transport reliability
The design is equipped with additional filters that perform double cleaning. The controllability of the vehicle is improved thanks to the presence of power steering. There is also a heater radiator, but it is used separately from this system.
There are two main components in the braking system:
- Working.
- Parking lot.
The operating principle of this system is pneumatic. The working part has two circuits, one for each of the working axes. This makes it easy to reset the speed if necessary. Even a complete stop in a few seconds does not cause any particular problems. The parking part is equipped with cameras, supplemented with springs and energy accumulators.
The anti-lock braking system ABS is required for all types of buses. Thanks to this, control will not be lost, even during emergency braking. The grip also remains reliable. The transport is maneuverable, which is especially convenient when traveling on city roads. The requirements of the Euro 4 standard are met by the latest modifications without problems. Brake linings make it easy to control in all conditions.
In the case of transporting children, models are equipped with spare emergency doors. 5 heating devices are responsible for heating the interior in winter. The height of the driver's seat is adjustable.
Convenient, economical and safe bus transport for passenger transportation. The cabin is equipped with 27 or 30 seats, depending on the modification of the PAZ-4234.
A special feature of this model is its spacious interior, which allows the PAZ-4234 to be used both for transportation within the city and for intercity flights. Including standing places, the bus capacity is 45 or 50 people.
Main nodes
- Transmission: manual, 5-speed
- Brake system: Pneumatic, dual-circuit, drive with division into circuits along the axes. Equipped with ABS system
- Steering mechanism: with hydraulic booster
- Suspension: hard spring
Engine
Initially, only the MMZ D-245 engine (Minsk Motor Plant) was installed on the bus, but over time several modifications appeared. The version with the YaMZ-534 engine has increased power, but at the same time the price of the bus increases. The most expensive modification is equipped with an American Cummins engine, powerful and economical. All three engines are diesel.
comparison table
| Engine | MMZ D-245 | YaMZ-534 | Cummins ISF-3 |
| Power hp | 130 | 170 | 166 |
| Working volume l. | 4,43 | 4,75 | 3,76 |
| Environmental standards | Euro 5 | Euro 5 | Euro 5 |
| Max torque Nm | 455 at 1600 rpm | 583 at 1600 rpm | 592 at 1700 rpm |
| Guarantee | 50,000 km | 75,000 km | 75,000 km |
Equipment price
Buses can be found both new and used. New modifications are also being produced that comply with the latest versions of the standard. Two million rubles is the average price of a vehicle that has just rolled off the assembly line. Used cars are cheaper, even if they have a steering knuckle, for example.
New buses are always covered by a manufacturer's warranty. It is usually expressed in the form of a time interval or a specific mileage. Standard values are from one and a half to two years. Mileage - from 50 to 75 thousand kilometers. For MMZ series engines, the warranty lasts less; it increases in the case of owners of Cummins series engines.
Modifications
- PAZ-423402 is a two-door luxury bus. Designed primarily for suburban passenger transportation
- PAZ-423403 is a one-door luxury bus.
- PAZ-423404 – Bus with YaMZ-534 engine and ZF S5-42 manual transmission
- PAZ-423405 – Bus with Cummins ISF-3 engines and ZF S5-42 manual transmission
- PAZ-4234-70 school - designed specifically for transporting children over short and medium distances. In addition to the bright yellow color, the school bus has many features. This model uses air suspension, due to which the bus moves much smoother compared to the base model. The cabin has 24 seats, as well as 2 special seats for accompanying persons. Also, in addition to this, many additional necessary things are installed in the cabin, for example, driver emergency call buttons, additional handrails, shelves for backpacks.
Repair and operation
201415-P29 Bolt M6x10 3 Out of stock 201416-P29 Bolt M6x16 20 Out of stock 201418-P29 Bolt M6x16 2 Out of stock 201422-P29 Bolt M6x25 fastening the lever of the front accelerator roller 4 Out of stock 223017-P29 Screw for attaching the pipe exhaust M4- 6gx22 OST 37. The system helps, even at high bus speeds, to ensure a minimum braking distance and promptly stop traffic in an emergency.
Qн = 0.01 x (Hsan x S + Hw x W) x (1 + 0.01 x D)
where Qn is the standard fuel consumption of a PAZ van, l; S —van mileage, km; Hsan - fuel consumption rate for the van's mileage in running order without cargo;
For PAZ vans operating without taking into account the weight of the transported cargo, the normalized value of fuel consumption is determined taking into account an increasing correction factor - up to 10% of the base standard.
| Model, brand, modification of the van | Fuel consumption rate per 100 km | Fuel |
| 1 | 2 | 3 |
| PAZ-3742 | 29,0 | B |
| PAZ-37421 | 28,0 | B |
| Ratnik-29453 (highway GAZ-2705) | 16,1 | B |
| RAF-22031-1, -22035, -22035-01 | 15,0 | B |
| RIDA-222210 (highway GAZ-2705) | 15,3 | B |
| RIDA-222211 (highway GAZ-27057) | 13,7 | D |
The PAZ fuel consumption rate is necessary for the work of the ATP and organizations related to the control and monitoring system of vehicles, individual entrepreneurs (IE) using automotive equipment and special rolling stock on the chassis of PAZ buses, calculating the standard value of the PAZ fuel consumption rate at the place of consumption, for maintaining statistical and economic reporting.
