Introduction
PAZ 3205 is one of the most popular domestic buses. 3205 is the basic model of the plant, on which a wide number of different modifications are built. The bus was developed for almost 15 years by creating about 10 prototypes. Serial production of the model started on December 1, 1989. PAZ 3205 replaced the massive PAZ 672 on the conveyor, which was outdated at that time. On June 4, 2001, the plant celebrated the release of the 100,000th PAZ 3205 bus. In 2008, the equipment was modernized at the plant, which made it possible to produce the equipment more efficiently. Despite the outdated design, PAZ 3205 can be seen quite often as a minibus, suburban or regional bus. Also PAZ 3205 is widely used as vehicles for ritual services, educational institutions.
In the Russian market, PAZ 3205 has proven itself exclusively on the positive side. The bus is robust, durable, maintainable and easy to maintain. PAZ 3205 can be equipped with both gasoline and diesel engines.
Technical characteristics Paz 3205
General
Number of passengers 25
for sitting
Total capacity 41
Gross weight (kg) 8155 Max. speed (km / h) 90 Braking distance (m) 36 Fuel consumption (l / 100km) 60km / h 27
Engine
Model ZMZ 5234.10 Type 4-stroke, carburetor, gasoline
Front longitudinal location
Engine
Number of cylinders 8
Lubrication system Combined: under pressure and spray with oil cooling in the radiator.
Cooling Closed type, liquid, forced with
engine with a centrifugal pump.
Transmission
Clutch Single disc, dry, permanently closed
with a spring vibration damper on the driven
Clutch drive Hydraulic
Transmission Mechanical three-way 4-speed
Chassis
Wheels Disk 6,0-20 with side rings
6-pin
Springs Longitudinal, semi-elliptical.
Shock absorbers Hydraulic, telescopic, double-acting.
Brake system
Working brake Double-circuit with pneumatic drive and
system with an air receiver in each circuit, with a compressor, with a pressure regulator.
Parking Pneumatic, acts on the rear wheels from the springs of the accumulators.
Spare One of the circuits of the service brake system
Electrical equipment
Electric system - Single-wire, with connection
equipment of negative terminals on the case ("mass")
Alternator 28.3701 of alternating current, three-phase, with built-in semiconductor rectifier and integrated voltage regulator
Characteristics of the car Paz 3205
This bus is equipped with a V-shaped eight-cylinder
engine model ZMZ-5234.10 with overhead valves,
highly turbulent combustion chambers, full-flow filtration
oil, closed crankcase ventilation system, recirculation system
exhaust gases.
The bottom of the pistons has a concave spherical surface and includes
partially the volume of the combustion chamber.
Combined engine lubrication system. Under pressure
the main and connecting rod bearings of the crankshaft are lubricated,
camshaft bearings thrust flange camshaft
shaft, rocker arm bushings and upper rod ends.
Spray lubricates cylinder mirrors, upper bushings
connecting rod heads, piston rings, valves, tappets and cams
camshaft.
Gear type oil pump, single section. In the lid
pump there is a pressure reducing valve that protects the oil
system from excessive pressure build-up.
The power supply system of this bus consists of a fuel
tank, fuel lines, fuel pump, fuel sump,
fine fuel filter, carburetor and air filter.
The air filter consists of 3 main parts: Covers,
paper filter element and housing.
The carburetor of this bus (K135MU) is a two-chamber, vertical
heating, downdraft, emulsion, semi-automatic
starting device, recirculating valve control connection
llation, with a device for sealing the adjusting screws
idle move. Each carburetor mixing chamber acts
regardless of the other. The right chamber feeds the right bank of cylinders,
and the left cameras are the left row.
Single-disk dry clutch, hydraulic shut-off device
rationally. Transmission mechanical 4-speed with
remote control rocker type.
The front suspension of the bus consists of two longitudinal semi-
Liptic springs and two hydraulic shock absorbers. Back
springs, has correcting springs of variable stiffness and two
shock absorber. Shock absorbers on this bus are installed
collapsible, telescopic type, unified with shock
congestion KamAZ.
The steering gear consists of: a steering wheel, a steering column with
shroud, universal joint, hydraulic power cylinder,
power steering pump. Power steering:
The hydraulic cylinder ЦЕ50 * 250 acts on the steering arm.
The bus is equipped with an electronic anti-lock braking system
(ABS) brakes by Knorr-Bremse, which provides stable
quick braking of the bus on roads with a low coefficient
adhesion of the wheels to the road surface.
This bus has a single-wire electrical system,
the negative terminals of the current sources are connected to the case
("Mass") of the bus. To sources of electricity by bus
includes the battery and alternator with
built-in rectifier. The generator is connected in parallel with
rechargeable battery. Installation provides power
consumers in all engine modes, as well as recharging
battery.
The body of this car is of a wagon type, cylindrical,
load-bearing, welded.
The body consists of pre-assembled units: base,
left and right sidewalls, front, rear and roof.
The base of the body consists of 2 longitudinal elements
(Spars) U-shaped section, interconnected
crossbars.
The sidewalls consist of longitudinal belts and vertical struts,
made of rectangular pipes and lined
from the outside with stamped steel panels using
The front and rear parts of the body have a frame made of stamped
profiles and welded.
The body roof is made of longitudinal and transverse elements
made of rectangular pipes and welded between
The bus floor is made of 12mm plywood sheets,
fixed to the base with screws and closed with an autoline.
This bus has 3 doors:
Two passenger double doors located on the right
(in the direction of travel), controlled remotely from the driver's cab.
Electric control with pneumatic drive.
One driver's door is single-leaf, locked with a lock, located on the right (in the direction of travel).
There is ventilation, which consists of 3 roof hatches and vents on the side windows.
Conclusion
The PAZ 3205 bus is quite easy to maintain. It is profitable, since PAZ 3205 quickly pays for itself in commercial use, and also has an excellent price-quality ratio. Plus PAZ 3205 has optimal technical characteristics. Today, this bus is one of the most popular in its class, as having small dimensions, it is quite nimble and quirky.
This small bus, which is still used today for transporting passengers in settlements and outside the city, is quite easy to use and economical. The technical characteristics available for PAZ 3205 allow it to be popular with consumers.
How the model was created
As a prototype of the PAZ 3205 bus, the 665th model was used, which was developed in 1966 in Pavlovsk, at the bus plant. The first copy rolled off the assembly line in 1981. At the same time, flaws were found, which were eliminated after a few years. And only in 1989 Pavlovsk buses began to be mass-produced.
The compact model with two automatic doors was popular throughout the USSR. But the collapse of the country and the economic crisis were the reasons for the decline in the capacity of the Pavlovsk plant. Despite this, the enterprise produced an urban modification and a model equipped with an MMZ diesel engine.
At the end of the nineties, the production volumes of Pavlovsk PAZ buses unexpectedly increased, although the crisis continued. But the carriers could not afford to purchase expensive spacious vehicles and turned their attention to cheap PAZs.
Against the background of the growing popularity, there were also numerous accidents on the roads, where PAZ 3205 was the culprit. The causes of accidents were often errors in the operation of vehicles and not very reliable brakes.
Over time, the appearance and filling of the PAZ-3205 model were gradually modernized. But even this does not prevent the vehicle from being considered hopelessly obsolete. Now more modern models of Pavlovsk buses are being developed.
Description of the power unit
The gasoline engine ZMZ-672-11 of the Pavlovsky bus, located inside, is characterized by:
- placement of cylinders in the amount of 8 pieces in the shape of the letter "V";
- with a capacity of 120 horsepower;
- volume of 4.25 liters;
- compression ratio 7.6;
- limiting torque 284 Nm;
- inertial oil air filter.
Transmission type
Pavlovsk buses are equipped with:
- five-speed (or four-speed) mechanical, synchronized gearbox;
- a single-disk dry clutch with a torsional vibration damper and a hydraulic drive;
- hydraulically driven shutdown;
- a two-shaft cardan transmission with an intermediate support;
- two-stage dispensing unit.
Description of wheels and tires
Pavlovsk buses have six wheels on disks (with one spare). Used tires 8.25R20 with a universal tread pattern.
Suspension parameters
PAZ-3205 are equipped with:
- dependent spring suspensions in front;
- dependent spring suspension at the rear;
- two shock-absorbing devices on each suspension of the Pavlovsk bus.
Description of brakes
On the PAZ-3205 model, install:
- working drum braking systems with two circuits, having a pneumohydraulic drive;
- drum model parking brakes, with a mechanical drive;
- spare brakes.
Steering characteristics
On Pavlovsk buses, a unit is installed with a hydraulic power steering with a gear ratio of 23.55 and a nominal pressure of 70 kg / cm 2. With the PAZ engine running, the permissible rudder free play is no more than 150.
Elements of electrical equipment
In PAZ-3205, the following is installed:
- rechargeable batteries 6ST-105EMS;
- generators with built-in rectifier and voltage regulator;
- starters ST230-A;
- distributors R133-B;
- switches TK1 02;
- ignition coils B116;
- candles A11-3.
The Pavlovsk bus is able to accelerate to ninety kilometers per hour and can accommodate thirty-eight passengers.
Description of liquids and reservoirs used
The fuel tank is designed for one hundred and five liters.
- antifreeze A-40 for cooling systems (25 l);
- oils for all seasons М-8В, М6 / 10В, winter ASZp-6 for engines (10 l);
- TAP-15V in steering systems crankcases (1.5 l);
- oils for all seasons "R" for power steering (3.2 l);
- TSp-15K in the checkpoint (3 l) and dispensing units (1.5 l);
- TSp-14gip in the rear (8.2 l) and front (7.7 l) PAZ axles;
- "Tom" in the hydraulics of the brakes and clutch drives of the Pavlovsk bus (1.47 l);
- АЖ-12Т in PAZ shock-absorbing devices (475 ml for each);
- NIISS-4, diluted with water, for windshield washers (2 l);
- alcohol (technical) for antifreeze in brake systems (200 ml).
PAZ 3205, 2006
Hello everyone. I have been working on it for 4 years, the mileage of about a hundred thousand km along the Volgograd roads is not a joke to you. PAZ 3205 is a very good device. Its biggest drawback, in my opinion, is the ZMZ-53 engine - it is rather weak for a bus. Well, and accordingly the clutch. This bus was originally created for rural areas, trips from city to village, for regional and suburban routes with low passenger traffic. In a nightmare, the designers did not expect that the PAZ 3205 would be used as one of the main buses in large cities. After all, what we proudly call "route taxi", in fact, is an ordinary regular, scheduled bus service. Nobody imagined that PAZ 3205 would be systematically (several times a day) packed up to the nominal (5 people per square meter), or even full (8 people per square meter) capacity. The bus is fast enough, has sufficient (with human occupancy) comfort. Although very tough. Withstands poor maintenance and the most brutal treatment. Yes, the car is outdated since its inception. Well, so the Pavlovsk plant has a new (2006) and much more advanced model 3204.
Dignity : hardy enough. Good cross-country ability.
disadvantages : outdated. Hard. Gluttonous and weak gasoline engine.
Yuri, Volgograd
PAZ 3205, 2009
The bus is quite simple with an outdated design. Hardy, but not very reliable in terms of reliability. There are disadvantages - pneumohydraulic brake drive. With all the ensuing consequences. Leaking in the literal sense - the cuffs on the working brake cylinders last for a very short time, that is, if you replace the pads and cylinders at the same time, it is not a fact that the cylinders will survive until the next replacement of the pads. And in order to replace them or the brake cylinder, you need to unscrew the wheel nuts with the sleeves. Exactly, there is one more disadvantage - futorki. It is far from always that this dirty trick is unscrewed immediately, even if it is liberally lubricated during assembly, and sometimes you have to use a grinder or throw off the hub. It's good if you do all this in the garage, and not on the way, with nervous passengers in the cabin. But what I liked about the PAZ 3205 was the power steering. By 10 years of operation, ABS begins to "glitch", the brakes work, then no. The solution to the problem is to disconnect the wiring harness under the driver's seat. And try to smear the futorki with copper grease, of course, you can't unscrew it from your hand, but they go much easier.
Dignity : simple. Inexpensive. Perfect for rural areas - good cross-country ability. Power steering.
disadvantages : hard. Not very reliable.
Sergey, Ryazan
PAZ 3205, 2017
The 2017 bus is no different from the old PAZ 3205 models. The interior was as bad as it was. The engine is a gasoline carburetor, does not pull at all, does not move without jerking without gas, the clutch is disgusting, the noise is horrible, the gearbox with double squeeze and perezhazovkoy to change gear without crunching is rarely possible, the clutch must be squeezed with two legs, when driving in first gear such a howl is worth that I think the checkpoint is about to explode. The fuel consumption of PAZ 3205 space is 37.95 in the city, how did they manage to reach the euro in general, not to mention the euro 2, 3 or 4, but how is this disgrace still being released?
Dignity : hardy.
disadvantages : deprecated in everything.
Dmitry, Moscow
PAZ 3205, 2015
The PAZ 3205 bus is a museum piece. In general, people in Russia do not like and do not know how to make equipment for people. Inconvenience - for both the driver and passengers. But if passengers are temporarily on the bus for a trip, then the driver is constantly day in and day out. With a gasoline engine, the bus does not have enough power at modern speeds. Clutch, gearbox - leaves much to be desired. In addition to the fragility of the clutch, there is also such a property as freezing at low temperatures, the pneumohydraulic brake system also freezes, as a result of which not only work but also safety deteriorates (and the lower the ambient temperature, the worse the work of the clutch and brakes). Cramped driver's seat. Installing rear-view mirrors creates blind spots when viewing. Waste bins in the form of recesses are created by the factory between the driver's panel and the windshield. Poor windshield blowing at low temperatures; outside direction indicators are installed in an ill-conceived place, which contributes to throwing dirt from under the front wheel. There are also questions about the tightness of the doors and the heating of the PAZ 3205 interior. As for heating, we can say the following: in winter, the PAZ 3205 bus is a refrigerator, and in summer it is an oven. There are also problems with a diesel engine - since the engine itself is very noisy, and working with such noise for a long time is simply unbearable. The braking system has been converted to pneumatic - this is a plus, but the conversion of bumpers from metal to plastic is the "know-how of the plant" (since plastic bumpers even crack themselves at low temperatures and, in my opinion, it would be better if the bumpers were completely removed or they came up with something something more original). Also, on the outside, the body joints are sealed with tape and sheathed with aluminum strips, under which moisture gets and soon metal corrosion appears. In general, we still need to work and work on creating a normal bus, because in other countries they somehow know how to make pretty good equipment.
Dignity : No.
disadvantages : in the review.
Alexey, Saratov
To date, the main modifications PAZ 3205 are:
- § 32053;
- § 32053-50П;
- § 32054;
- § 32054-03;
- § 32054-07;
- § 32053-20;
- § 32053-80;
- § 32053-70.
Model 32053 is a bus with one automatic door, which operates mainly on suburban routes. Model 32053-50P is the same model as 32053, but with improved interior. Used on suburban routes. Model 32054 has two automatic doors and is used to transport passengers on urban routes. Model 32054-03 is equipped with a Cummins B 3.9 140 CIV-1 diesel power unit and two automatic doors. The PAZ 32054-07 bus is equipped with a liquid-cooled MMZ 245.7 diesel engine, gas-turbine supercharging and intercooled air, and, like model 32054-03, is operated on urban and suburban routes. Model 32053-20 is a cargo-passenger bus that transports various equipment and construction crews. Models 32053-80 and 32053-70 are "Ritual" and "School", respectively.
Two modifications of PAZ 3205 are especially popular among passengers and consumers: model 32053 and model 32054. Both of these modifications are unpretentious in maintenance and easy to operate. Therefore, they have been leading among other brands of high-floor small-class buses in popularity for several years already.
32053 and its various modifications have long been used for transporting rural residents. It has established itself as a reliable, unpretentious, convenient public transport. In addition, model 32053 is modified for cargo-passenger buses that carry workers of construction and other specialties, as well as transport various goods. Depending on the goals and objectives, the 32053 model is also "tuned" for other types of special transport. The sale of PAZ 32053 is carried out taking into account the requirements of the client, and, if desired, the bus can be supplied with additional equipment.
Model 32054 is a variant of urban transport that is able to accommodate and transport passengers to their destination in a short time, because to reduce downtime at stops, model 32054 is equipped with an additional automatic door. The ease of access to the 32054 passenger compartment is combined with a large passenger capacity, which helps to increase the return on investment. Model 32054 has a wide repair base: the necessary parts can be purchased at a low price. At the same time, it has a high level of reliability. Various modifications of PAZ 32054 can be equipped with diesel-powered power units. On request, you can replace some of the factory components, such as gearbox, axle, engine, with the required ones.
If you decide to buy any of the modifications of the PAZ 3205 series, you can contact us, because we sell modifications of the PAZ 3205 series at manufacturer's prices. At the request of the customer, modifications of this series of buses are completed with additional equipment, so before buying a PAZ 3205, it is necessary to determine its main functions.
Technical specifications buses PAZ-3205:
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dimensions |
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Length, mm |
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Width, mm |
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Height, mm |
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Wheelbase, mm |
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Front overhang, mm |
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Rear overhang, mm |
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Front track, mm |
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Back track, mm |
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Ground clearance, mm |
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Passenger door width, mm |
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Interior floor height from road level, mm |
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Interior ceiling height, mm |
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Weight and occupancy of the bus |
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The mass of a fully equipped bus, kg |
5130-5380 (depending on modification) |
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Full mass of the bus, kg |
7610-8390 (depending on modification) |
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PAZ-3205/32053 |
PAZ-32051/32054 |
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Number of seats |
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Total number of seats |
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Engine and gearbox |
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PAZ-32053/32054 |
PAZ-32053-07 / 32054-07 |
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Power unit brand |
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engine's type |
carburetor |
diesel |
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Number and arrangement of cylinders |
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Engine displacement, l |
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Engine power, kW (h.p.) |
96 (130) at 3200 rpm |
90 (122) at 2200 rpm |
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Torque, Nm |
314 at 2250 rpm |
424 at 1300 rpm |
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Compliance with toxicity standards |
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Fuel consumption, l / 100 km |
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GAZ-3307-1700010 |
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mechanical |
mechanical |
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Number of gearshift steps |
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Steering |
MAZ-64229 with hydraulic booster |
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Brake system |
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pneumatic double-circuit with separation of wheels - drum, ABS |
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spare: |
one of the circuits of the service brake system |
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parking: |
drive from spring brake accumulators to rear wheel brakes |
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Interior ventilation |
natural, through the hatches and vents of the side windows |
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Interior heating system |
PAZ-32053/32054: Air, using PAZ-32053-07 / 32054-07: Liquid, from the engine cooling system, independent heater |
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Maximum speed at full load, km / h |
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Fuel tank capacity, l |
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Minimum turning radius, m |
Types and classification of vehicles
Table 1. Classification groups of vehicles.
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According to UNECE documents |
According to GOST 22895 - 77 |
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Power-driven vehicles with at least four wheels and used for the carriage of passengers. Vehicles used for the carriage of passengers and having, in addition to the driver's seat, no more than 8 seats. |
ATS with an engine, designed for the transport of passengers (passenger and utility vehicles, their modifications, buses, passenger road trains). The same, with no more than 8 seats, except for the driver's seat. |
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Vehicles used for the carriage of passengers and having more than 8 seats in addition to the driver's seat. The maximum vehicle weight of this category does not exceed 5 tons. |
The same, with more than 8 seats, except for the driver's seat, and a total weight of up to 5 tons. |
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Vehicles used for the carriage of passengers and having more than 8 seats in addition to the driver's seat. The maximum vehicle weight of this category exceeds 5 tons. |
The same, with more than 8 seats, except for the driver's seat, and a total weight of over 5 tons. |
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Power-driven vehicles with at least four wheels and intended for the carriage of goods. |
ATS with an engine, designed for the carriage of goods (trucks, motor vehicles, as well as their chassis with installations mounted on them, i.e. special vehicles). |
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Vehicles designed for the carriage of goods, the maximum mass of which does not exceed 3.5 tons. |
The same, with a gross weight of up to 3.5 tons. |
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Vehicles designed for the carriage of goods, the maximum mass of which is more than 3.5 tons, but does not exceed 12 tons. |
The same, with a total weight of over 3.5 to 12 tons. |
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Vehicles designed for the carriage of goods, the maximum mass of which exceeds 12 tons. |
The same, with a total weight of more than 12 tons. |
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Trailers, including semi-trailers. |
ATS without engine (trailers and semi-trailers) |
In regulatory documents, indicators of the operational properties of vehicles are determined in accordance with their classification. Distinguish between the classification of vehicles developed by the Inland Transport Committee of the United Nations Economic Commission for Europe (UNECE) and the Russian classification according to GOST 22895 - 77. Each classification group has its own characteristic (table 1).
The M1 category includes passenger cars, which can be divided into separate groups depending on the selected classification criterion - one of any properties or characteristics.
PAZ 3205 is a very easy-to-operate and economical model in comparison with other high-floor buses of a small class. Fuel consumption when driving at a speed of 60 km / h will be only 18-20.5 liters per 100 kilometers. Agree, such an expense is quite economical, especially when you consider that this is public transport. The total number of seats of the model under consideration varies (depending on the modification) from 36 to 42, landing - from 21 to 25. For a small class bus, this is a good indicator of passenger capacity. The maximum speed of this series is 80-90 km / h. This speed is sufficient for transporting passengers both within the city and in the countryside, as well as for other purposes.
Its interior is comfortable and spacious. The passenger seats are located at a sufficient distance from each other - the knees will not rest against the seat in front. In the hot season, vents and hatches, which together represent a natural ventilation system, will relieve the heat. In winter colds, the PAZ 3205 will not allow the heating system to freeze, which is powered by the engine cooling system. I would like to note that roof hatches do not leak during rain, which was not uncommon for previous PAZ models.
Easy control of the 3205 series is provided by the MAZ 64229 power steering gear, which allows the driver to maneuver on narrow city streets, as well as over rough terrain on rural routes. The body of this series is load-bearing, wagon layout. Recently, all bodies of the 3205 series have undergone a special anti-corrosion treatment, including filling the hollow cavities with the composition "Dinitrol", and all bodies are given a six-year factory warranty against corrosion penetration. Until recently, no one could even think of any guarantees.
The driver's seat PAZ 3205 is adjustable in the horizontal plane and in the angle of inclination of the back. It has cushioning, thanks to which the driver's back does not hurt, even after long journeys. Modifications PAZ 32053 and PAZ 32054 are equipped with a switch for turns and headlights on the steering column. This cannot but rejoice, because initially the PAZ 3205 was equipped with a foot switch for switching the light to the far one, which was not very convenient to reach. The employees of the Pavlovsky bus station eliminated this inconvenience.
A distinctive feature of this series from buses of other brands is the internal arrangement of the engine. Agree that this is very convenient. It's no secret that breakdowns happen at the most unexpected moment. If the engine needs minor repairs, and there is frost outside, then the driver does not have to go outside, open the hood and dig into the mechanisms with frozen fingers. All this can be done much more comfortably in the PAZ 3205 cabin, all that remains is to open the hood.
On the basis of PAZ 3205, many modifications are produced, which, to one degree or another, are equipped for specific purposes, for example, model 32053, which is often used as "School" (for transporting children from schools to various events) or "Ritual". You can also find the 32054 model on urban and rural routes. It is easily recognizable by the presence of one additional door, which facilitates passenger access to the cabin. All modifications of this series are constantly being improved. The quality increases every year, only the low price remains the same.
Various modifications can be equipped with a gasoline and diesel power unit (32054-03 and 32054-07 - diesel). It should be noted that a diesel engine is more economical and safer for the environment (complies with Euro-3 international environmental standards). Diesel fuel is cheaper, which means that it is economically feasible to use such an engine. Model 32054 is equipped with Anti-lock Braking System (ABS), which makes sudden braking of the bus smoother, protecting passengers and the driver from serious injury.
