The development of the modern market for urban and intercity passenger transportation is impossible without new high-quality bus models. They must meet safety and environmental requirements, and be comfortable for passengers and the driver. One of these models of new modern transport is the PAZ 4230.
At the Pavlovsk Automobile Plant in the late nineties, production was restructured. It allowed the company to switch to models of middle and large class buses that it had never produced before. Initially produced only in Pavlovo, the bus belongs to the middle class. The production of this model was transferred to the capacity of the Kurgan Bus Plant. Both plants operate as part of the RusPromAvto association.
Since 2002, buses of this model range have been produced in Kurgan for urban and suburban routes under the PAZ-4230 “Aurora” - KAVZ brand.
PAZ-4230 "Aurora" - WikiModern
PAZ-4230 "Aurora"
is a Russian high-floor, middle-class bus, developed in the late 1990s at the Pavlovsk Bus Plant.
Since 2001, serial production of the bus has been launched at PAZ. After entering the Kurgan Bus Plant in 2001, starting in 2002, production of the PAZ-4230 Aurora bus was transferred to the Kurgan Bus Plant. Since 2003, KAvZ began serial production of several modifications of this bus. In addition, in 2001, at the ComTrans'2001 exhibition, the PAZ-4230 received the title "Best Domestic Bus of 2001"..
Since 2000, PAZ began to establish production for the production of a new model of the PAZ-4230 Aurora bus. At the same time, PAZ was attached to the management. In 2001, the Pavlovsk Automobile Plant began serial production and produced 85 buses of this model, in 2002 - 194.
In 2001, the Kurgan Bus Plant entered the. To prevent intra-corporate competition, it was decided that KAvZ would specialize in the production of middle-class buses for urban and suburban use. As a result, production of the PAZ-4230 Aurora bus was transferred in 2002 to the Kurgan Bus Plant.
After carrying out all the necessary measures to prepare production and train personnel, in 2003 KAvZ began serial production of the PAZ-4230 Aurora bus.
At first, two modifications of buses PAZ-4230-01 and PAZ-4230-02 were produced, respectively, suburban and intercity versions. The production of the urban modification PAZ-4230-03 was mastered by KAvZ at the end of 2005.
In 2006, a new extended model PAZ-4238 “Aurora” appeared, which was intended for operation on urban, suburban and intercity routes over a distance of up to 500 km.
In 2008, KavZ specialists developed the KavZ-4235 model, in connection with the introduction of environmental regulations and tightening standards for emissions of harmful substances into the atmosphere, which replaced the PAZ-4230 model on the assembly line. In 2010, a school modification based on the KAvZ-4238 Aurora was created and certified. In 2010, the plant restyled the exterior of the base model, as well as modernized the power structure of the body, the interior of the bus, the heating system and the braking system.
By 2011, the average monthly production rate of Aurora buses at the Kurgan Bus Plant was 70-80 buses per month. On November 24, 2011, the Kurgan Bus Plant produced the 6000th anniversary Aurora.
Specifications
| Indicators | Medium high-floor buses PAZ-4230 "Aurora" and KAvZ-4235 "Aurora" | |||||
| PAZ-4230-01 | PAZ-4230-02 | PAZ-4230-03 | KAvZ-4235-31 | KAvZ-4235-32 | KAvZ-4235-32 | |
| Purpose | suburban | intercity | urban | suburban | intercity | urban |
| Overall dimensions, mm: | ||||||
| length | 8370 | 8380 | ||||
| width | 2500 | |||||
| height | 2995 | 3085 | ||||
| Base, mm | 3600 | |||||
| Min. turning radius, m | 8 | |||||
| Entry angle, degrees | 10 | |||||
| Departure angle, degrees | 9 | |||||
| Weight, kg:. | ||||||
| equipped | 7070 | 7110 | 6920 | 7070 | 6954 | 6920 |
| full | 11040 | 10940 | 10975 | 11350 | ||
| Axle load, kg | ||||||
| front | 3920 | |||||
| back | 7430 | |||||
| Cabin height, mm | 1960 | 1970 | ||||
| Passenger doors: | ||||||
| number | 2 | |||||
| width of doorways | 650 | 726 | 650 | |||
| Number of places: | ||||||
| landing | 31 | 29 | 27 | 31+1 | 29+1 | 25/27+1 |
| general | 54 | 54 | 56 | 52 | 54 | 56 |
| Engine: | ||||||
| type, | Diesel | |||||
| model | MM3-245.9 | Cummins 4 ISBe 185 | ||||
| number of cylinders | 4 | |||||
| Cylinder arrangement | in-line | |||||
| working volume, l | 4,75 | 4,4 | ||||
| power, kW (hp) | 100 (136) | 118 | ||||
| at frequency, min-1 | 2400 | 2300 | ||||
| torque, N•m (kgf•m) | 460 (46,91) | 600 | ||||
| at frequency, min-1 | 1400 | 11001800 | ||||
| Supercharging | Turbocharging | |||||
| Powertrain location | Rear, longitudinal | |||||
| Environmental safety standards | EURO-1,EURO-2 | EURO-4 | ||||
| Fuel tank volume, l | 105 | |||||
| Operating fuel consumption, l/100 km | 25 | |||||
| Maximum speed, km/h | 90 | |||||
| Body type | Carrier, carriage layout | |||||
| Body life, years | 8 | 7 | ||||
| Wheel formula | 4×2 | |||||
| Front axle/drive axle | RZAA | KAAZ | ||||
| Steering | With power steering | |||||
| Steering gear | MAZ, 64229 “screw-nut-rack-sector” | |||||
| Tires | 275/70 R22.5; 8.25R20; | |||||
| Ventilation | Natural | |||||
| Transmission: | ||||||
| Gearbox type | mechanical | |||||
| Gearbox model | PAZ-3206-70 (SAAZ) | ZF, 5 S 600 BO or ZF, S 5-42 | ||||
| Number of gears | 5 | |||||
| Brake system | ||||||
| working: | Pneumatic double-circuit drive with division into circuits along the axes, with ABS, brake mechanisms on all wheels - drums. | |||||
| parking: | The brake mechanisms of the rear wheels are driven by spring energy accumulators. | |||||
| spare: | One of the circuits of the service brake system | Each circuit of the service brake system. | ||||
| auxiliary: | Engine brake with pneumatic drive. | |||||
| Heating system | Combined, from the engine cooling system and liquid heater. |
Transmission
- single-plate diaphragm clutch, hydraulic clutch drive with pneumatic booster;
- manual transmission - five-speed, with synchronizers;
- remote gear shifting, with cable drive;
- The rear axle is driven, the main gear is hypoid.
- Wheels and tires: for models 4230-01, 4230-02: disc 6.0-20 on 8 studs, tires 8.25/R20;
- for models 4230-03: disc 8.25-22.5 on 10 studs, tires - 11/70R22.5;
- The ends of the springs are fixed in rubber cushions;
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Modeling
Ukrainian company Vector-Models
released several metal models of these buses in 1:43 scale.
- PAZ 4230-01 "Aurora" - suburban
- PAZ-4230-02 "Aurora" - long-distance
- PAZ-4230-03 "Aurora" - urban
- PAZ 4230-01U “Aurora” - simplified
- PAZ 4230-01K "Aurora" - luxury
Gallery
- PAZ-4230, previously operating in Kurgan in Strezhevoy
Links, notes
- PAZ - 4230 - Pavlovsk Bus Plant, history (inaccessible link - history
). Retrieved June 17, 2013. Archived April 4, 2013. - 12
Kurgan Bus Plant produced the 6000th Aurora bus - History of the PAZ brand – brandpedia
- The best in Russia (inaccessible link - history
). Retrieved June 17, 2013. Archived March 4, 2016. - Pavlovsk residents dream about “Aurora” (inaccessible link)
- Description of the PAZ-4230 model (4230-01, PAZ 4230-03) - Auto-Alliance portal
- Vector Models
Source: https://infosphere.top/%D0%B2%D0%B8%D0%BA%D0%B8/%D0%9F%D0%90%D0%97-4230_%C2%AB%D0%90% D0%B2%D1%80%D0%BE%D1%80%D0%B0%C2%BB/
Engine
The power unit, which uses PAZ-4230-03 from the well-known company Cummins as its main workforce, meets all safety requirements and standards, including environmental ones - Euro-3.
The engine is capable of producing operating power equal to 185 horsepower. This figure is more than sufficient for using the vehicle in the city.
Diesel fuel, which PAZ-4230-03 uses as the main working fluid, is economical and, when burned, produces a higher efficiency (compared to gasoline), up to 50%.
In winter, the interior of this model is as warm as in summer, because the liquid heating system (which operates from the engine cooling system) coupled with an independent heater helps maintain a positive temperature in the bus interior, thereby ensuring the efficient operation of this vehicle. Even for these properties, it’s probably worth buying a PAZ-4230-03.
From all the above features, it is worth concluding that the PAZ-4230-03 is a successful model of domestic production. Reliable and proven components of this bus have a fairly simple design and great functionality, which ultimately makes this bus a convenient mode of transport.
Paz 4230 is the embodiment of advanced design developments
The development of the modern market for urban and intercity passenger transportation is impossible without new high-quality bus models. They must meet safety and environmental requirements, and be comfortable for passengers and the driver. One of these models of new modern transport is the PAZ 4230.
At the Pavlovsk Automobile Plant in the late nineties, production was restructured. It allowed the company to switch to models of middle and large class buses that it had never produced before. Initially produced only in Pavlovo, the bus belongs to the middle class. The production of this model was transferred to the capacity of the Kurgan Bus Plant. Both plants operate as part of the RusPromAvto association.
Since 2002, buses of this model range have been produced in Kurgan for urban and suburban routes under the PAZ-4230 “Aurora” - KAVZ brand.
Design Features
The length of the carriage layout of the all-metal body PAZ 4230-01 is 8370 mm. It is load-bearing, in a three-door design (one door is for the driver), width 2500 mm, bus height 2995 mm. The convenience of boarding passengers through single-leaf doors is due to the low location of the first stage of the cabin. The doors extend outwards and are equipped with a pneumatic drive.
The designers increased the service life of the PAZ 4230 bus to eight years by creating a body made of galvanized steel sheets on a welded frame structure. The wheel arches of the bus were also galvanized. The interior trim is plastic. The body at the back and front is made of fiberglass panels.
The PAZ 4230 models differ from the usual ones with a panoramic front windshield, which improves visibility for the driver. This is also facilitated by large, electrically heated rearview mirrors that can be adjusted from the driver’s seat. The optics installed on the bus are Russian, from the Samara Automobile Plant.
Since the car is intended for intercity transportation of up to 300 km, the interior is equipped with 31 semi-soft separate seats with high adjustable backrests. Under the seats outside the cabin there is a luggage compartment of 1.75 m3. Above the heads of passengers there are shelves for hand luggage, covered with fabric.
The interior trim is not a permanent option and can be ordered individually. The interior ventilation system is natural. Air access occurs through hatches made of aluminum alloys and window vents. Windows are available in two versions: glued or with rubber seals. In addition, the buyer can order an individual lighting and air conditioning and ventilation system. The electrical circuit of the PAZ 4230 is double-circuit (for the passenger compartment and the engine).
The PAZ-4230 closed-type liquid heating system heats the interior in winter, working from the engine cooling system. A foreign-made autonomous heater is also installed. This heater operates when the engine is off and can warm the engine at low temperatures.
Review of bus technical characteristics
The main technical characteristics of PAZ 4230 meet international requirements for environmental friendliness. Buses of this series were initially equipped with a Minsk 136 l/s diesel engine. Later modifications began to be equipped with the German Cummins ISBe with greater (150 l/s) Euro-3 class power.
A bus equipped with a 105-liter fuel tank and such an engine travels at a speed of 110 km/h. The reference fuel consumption is from 17 to 19 liters per 100 km, a good economic indicator for this class of buses. The tank is located between the side members of the body, the engine is mounted longitudinally on the rear cross member of the frame.
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The cylinders of a four-stroke engine have a vertical in-line arrangement. A non-separable full-flow oil filter is installed on the car; combined lubrication occurs under pressure from the pump and splashing. Both bus suspensions are leaf springs with ends in rubber cushions. A stabilizer bar is installed on the front.
PAZ 4230 buses of all modifications of this series are equipped with spare parts and parts with an increased service life: the engine, gearbox and axles are designed for 1,000,000 kilometers. Both axles are from ZIL, the rear one is equipped with a hypoid gear, which ensures a smooth ride for the vehicle even at full load. Additional springs are mounted on the rear to ensure smooth running. Double-acting telescopic suspension shock absorbers with hydraulics.
The clutch with the hydraulic booster is a single-disc dry diaphragm clutch. The five-speed PAZ 4230 gearbox with synchronized gear shifting is produced at the Gorky Automobile Plant, mechanical. The steering mechanism of MAZ buses with a hydraulic cylinder power steering. The hydraulic booster operates from a gear pump, which is driven by the camshaft gear.
As with all modern PAZ models, the braking system meets transportation safety requirements. In case of an emergency stop, the car will cover 31.1 meters of braking distance. The brake system is pneumatic.
Working system with wear-resistant drum mechanisms, the position of the shoes is automatically adjusted, the two circuits are separated along the axes. An anti-lock braking system is installed.
Spring-loaded electric accumulators act on the brake mechanisms of the rear wheels using a drive, ensuring the operation of the parking brake system.
Buses are produced on a 4x2 wheelbase. Modifications PAZ-4230-01, Paz-4230-02 are equipped with 6.0-20 disc wheels with single-ply 14-ply tube tires 8.25-R20 and mounted on eight studs. The maximum load on the axles of this series of buses is 3780-3755 and 7260-7185 for PAZ-4230-01, Paz-4230-02 in accordance with the operating manual.
Production of this series ended in 2008. Paz 4230 has given way to more modern and ergonomic vehicles; on the secondary market, depending on the configuration and condition, the price of these buses ranges from 900 thousand to 1,500,000 rubles.
Source: https://promplace.ru/passenger-transport-staty-i-obzory/avtobus-paz-4230-1434.htm
Brake system
The brake system of the bus is pneumatic, which facilitates smooth braking.
The working brake system of this model is dual-circuit with an anti-lock braking system, with S-shaped expansion cams, with automatic clearance adjustment; the brake mechanisms of all wheels of this bus are drum brakes.
The auxiliary brake system is the engine brake system. While the parking brake system of the bus is the rear brake mechanisms, which are driven by spring energy accumulators.
PAZ-4230 "Aurora"
PAZ-4230 "Aurora"
is a Russian high-floor, middle-class bus, developed in the late 1990s at the Pavlovsk Bus Plant.
Since 2001, serial production of the bus has been launched at PAZ[1]. After entering the Kurgan Bus Plant in 2001, starting in 2002, production of the PAZ-4230 Aurora bus was transferred to the Kurgan Bus Plant. Since 2003, KAvZ began serial production of several modifications of this bus[2]. In 2008, a new model was introduced - KAvZ-4235.
Story
At the end of the 1990s, the Pavlovsk Bus Plant faced the need to restructure production in order to produce a wide range of buses of different classes. Before this, PAZ specialized only in the production of small class buses. The flagship model at that time was the PAZ-3205 bus.
In this regard, PAZ developed the large PAZ-5271, PAZ-5272 and medium-class PAZ-4230 Aurora models. The new Pavlovsk bus attracted close attention and received many awards at exhibitions.
At the Russian International "Auto Show-99" in Moscow, Pavlovsky Bus OJSC was awarded a special prize from the magazine "Behind the Wheel" for the models of city buses PAZ-5271, PAZ-5272 and for the promising PAZ-4230 "Aurora" bus.
In 2000, Pavlovsky Bus OJSC at the All-Russian Scientific and Industrial Forum “United Russia” - 2000 was awarded diplomas of the 1st and 2nd degrees “For the development and production of basic models of the promising model range of intercity buses PAZ-5272 and PAZ-4230
"[3]. In addition, in 2001, at the ComTrans'2001 exhibition, the PAZ-4230 received the title “Best Domestic Bus of 2001.”[4].
Since 2000, PAZ began to establish production for the production of a new model of the PAZ-4230 Aurora bus. At the same time, PAZ was attached to the management. In 2001, the Pavlovsk Automobile Plant began serial production and produced 85 buses of this model, in 2002 - 194[5].
In 2001, the Kurgan Bus Plant entered the. To prevent intra-corporate competition, it was decided that KAvZ would specialize in the production of middle-class buses for urban and suburban use. As a result, production of the PAZ-4230 Aurora bus was transferred in 2002 to the Kurgan Bus Plant.
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After carrying out all the necessary measures to prepare production and train personnel, in 2003 KAvZ began serial production of the PAZ-4230 Aurora bus.
At first, two modifications of buses PAZ-4230-01 and PAZ-4230-02 were produced, respectively, suburban and intercity versions. The production of the urban modification PAZ-4230-03 was mastered by KAvZ at the end of 2005.
In 2006, a new extended model PAZ-4238 “Aurora” appeared, which was intended for operation on urban, suburban and intercity routes over a distance of up to 500 km.
In 2008, KavZ specialists developed the KavZ-4235 model, in connection with the introduction of environmental regulations and tightening standards for emissions of harmful substances into the atmosphere, which replaced the PAZ-4230 model on the assembly line. In 2010, a school modification based on the KAvZ-4238 Aurora was created and certified. In 2010, the plant restyled the exterior of the base model, as well as modernized the power structure of the body, the interior of the bus, the heating system and the braking system.
By 2011, the average monthly production rate of Aurora buses at the Kurgan Bus Plant was 70-80 buses per month. On November 24, 2011, the Kurgan Bus Plant produced the 6000th anniversary Aurora[2].
GROOVE
- PAZ-4230-01
"Aurora" - suburban - PAZ-4230-02
"Aurora" - long-distance - PAZ-4230-03
"Aurora" - urban - PAZ-4230-01U
"Aurora" - simplified suburban - PAZ-4230-01K
"Aurora" - luxury suburban class
KAvZ
- KAvZ-4235
"Aurora" - urban, suburban - KAvZ-4235-31
"Aurora" - suburban - KAvZ-4235-32
"Aurora" - long-distance - KAvZ-4235-33
"Aurora" - urban[6]
Salon
The PAZ-4230-03 interior is equipped with 27 seats for passengers; the seats are more comfortable and cozy, and contribute to less fatigue for passengers during the entire trip.
A large degree of glazing in the cabin allows more daylight to penetrate into the bus, and besides, visibility into the cabin is simply excellent. The ventilation system, which is carried out naturally - through multiple windows and hatches in the roof of the bus, also makes traveling on this vehicle more comfortable.
When traveling on this transport, passengers do not experience a feeling of discomfort, because there is excellent air circulation in the bus interior. Buying a PAZ-4230-03 means getting a modern and efficient bus.
groove 4230 aurora wiring diagram
groove 4230 aurora wiring diagram
Engine type - diesel, four-stroke, with turbocharging and charge air cooling Method of mixture formation - direct fuel injection Number and arrangement of cylinders - four in a row, vertical Cylinder displacement, l - 4.75 Cylinder diameter/piston stroke, mm - 110/125 Power compression (calculated) - 17+/-1 Rated power, kW (hp)
) — 100+2 (136+/-3) Maximum torque, Nm — 456+/-4% Nominal crankshaft speed, min-1 — 2400 Crankshaft speed at maximum torque, min-1, not less + 1600+/-200 Minimum stable idle speed, min-1 — 800+/-50 Maximum idle speed, min-1 — 2610 Combined lubrication system: under pressure from the oil pump and splashing Full-flow oil filter, non-separable Tank fuel with a capacity of 105 l, located between the side members of the body
Cooling system - liquid, forced circulation, closed
Wheels and tires
For buses 4230-01, 4230-02: Wheels - disc 6.0-20, mounted on 8 studs Tires - tube, 8.25 R20; Maud. KI-111 with ply rate 14 (NS 14) 133/131K For buses 4230-03 Wheels - disc 8.25-22.5, mounted on 10 studs
Tires - tubeless, 11/70R22.5; Maud. D-1M, I-305 146/144J (or 149/145J); mod.D-7M, BI-334M, 149/145J; mod.О-86, 146/143J
Suspension
The front suspension is leaf spring with anti-roll bar. The ends of the springs are secured with rubber pads. The rear suspension is leaf spring with additional springs. The ends of the springs are secured with rubber pads
Shock absorbers - telescopic, hydraulic, double-acting
Brakes
The service brake system is drum type with a cam release mechanism and automatic adjustment of the shoe position
Steering
Steering mechanism - screw, ball nut-rack, gear sector Power steering - hydraulic cylinder acting on the steering bipod
Power steering pump - gear driven, driven by the camshaft gear
Body
carriage layout, all-metal, welded, load-bearing structure
Bus model PAZ-4230-01PAZ-4230-02PAZ-4230-03 Number of passenger seats Passenger capacity full Base, mm Front wheel track, mm Rear wheel track (between the centers of dual tires), mm Approach angle with full load? deg.: - front - rear Gross weight, kg, no more Weight of the equipped bus, kg, no more Load of the equipped bus, kgf: - on the front wheels - on the rear wheels Load of the bus with full weight, kgf: - on the front wheels — to the rear wheels Maximum speed of a bus with full weight, km/h, not less Minimum turning radius, m: — along the axis of the track of the front outer wheel — along the outer extreme point of the body Braking distance from a speed of 60 km/h of a bus with full weight, m , no more Control fuel consumption, l/100 km, no more: — at a speed of 60 km/h — at a speed of 80 km/h
| 31 | 29 | 27 |
| 54 | 52 | 56 |
| 3600 | 3600 | 3600 |
| 2094 | 2094 | 2094 |
| 1850 | 1850 | 1850 |
| 9 | 9 | 9 |
| 9 | 9 | 9 |
| 11040 | 10940 | 10975 |
| 7070 | 7110 | 6920 |
| 2330 | 2340 | 2240 |
| 4740 | 4770 | 4680 |
| 3780 | 3755 | 3930 |
| 7260 | 7185 | 7045 |
| 90 | 90 | 90 |
| 7,6 | 7,6 | 7,6 |
| 8,7 | 8,7 | 8,7 |
| 32,1 | 32,1 | 32,1 |
| 16,0 | 16,0 | 16,0 |
| 20,7 | 20,7 | 20,7 |
Source: https://remontgruzovik.ru/load/manualy_na_gruzoviki/paz_4230_ehlektroskhema/1-1-0-347
