MAZ-502

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MAZ
MAZ-502, photographed 2007
MAZ-502, photographed 2007
MAZ-502
Manufacturer: Minsky Avtomobilny Zavod
Sales designation: МАЗ-502
Production period: 1957-1966
Previous model: none
Successor: MAZ-505 (prototype only)
Technical specifications
Designs: Flatbed, special bodies
Engines: JaAZ-M204W
Power: 88-99.5 kW
Payload: 4 t
Perm. Total weight: 11.9 t

The truck MAZ-502 ( Russian МАЗ-502 , German transcription actually MAS-502) is a four-wheel drive truck type (4 × 4) made by the Soviet vehicle manufacturer Minsky Avtomobilny Zavod . The truck, built from 1957 to 1966, belongs to the first generation of commercial vehicles developed in the Soviet Union after the Second World War . It was created on the basis of the MAZ-200 . The MAZ-502 is also referred to as MAS-502 in various sources.

Vehicle history

After the end of the Second World War , the Soviet Army had a great need for all-terrain transport vehicles. During the war, this requirement was largely covered by the Lend Lease Act with US trucks. The trucks produced in the Soviet Union were pre-war developments and technically outdated. The MAZ-502 emerged as a military vehicle from the MAZ-501 , which in turn was based on the MAZ-200. Series production began in Minsk in 1957 and continued there until 1966. The MAZ-502 was the first military vehicle produced at the Minsk Automobile Plant.

Based on the MAZ-500 , the successor of the MAZ-200, built from 1965 , the all-wheel drive MAZ-505 was designed. However, the vehicle never went into series production. The weight class around four tons of payload was taken over by the all-terrain three-axle ZIL-157 and later by the ZIL-131 , lighter loads were transported with the GAZ-66 . MAZ no longer mass-produced two-axle trucks with all-wheel drive for military use until the collapse of the Soviet Union .

The MAZ-502 was not widely used in the Soviet Army. With a total weight of 11,700 kg, the rear axle with single tires was loaded with around 7,500 kg, which restricted the off-road mobility of the vehicle. The top speed of 50 km / h was too low for transport tasks. Nevertheless, the truck was in use until the early 1980s.

The National People's Army also used the MAZ-502. Here it was used from 1964, around fifty pieces were imported.

construction

Driver's cab of the MAZ-502 (2007)
Rear view of the vehicle (2007)

The MAZ-502 differs from the MAZ-200 mainly in the drive system. The engine used was the JaAZ-M204W (ЯАЗ-М204В), a development of the Yaroslavl Automobile Plant (Ярославский автомобильный завод), which had also developed the MAZ-200. The four-cylinder two-stroke diesel engine with a displacement of 4650 cm³ has an output of 88 kW (120  hp ), and according to other information also up to 99.5 kW (135 hp). Both axles are driven via a manual five-speed gearbox and a transfer case. The front-axle drive cannot be switched off, the truck has a central differential. 50% of the torque is transmitted to both axes. In contrast to the MAZ-200, all wheels have single tires. The brakes are compressed air operated, the power steering also works with compressed air . The MAZ-502 reaches a top speed of 50 km / h. The MAZ-502 has a universal platform for transporting people and loads. All other parts of the vehicle are identical to those of the MAZ-200.

Model versions

  • MAZ-502 (МАЗ-502) - the basic variant with a flatbed .
  • MAZ-502A (МАЗ-502А) - flatbed truck with a winch.
  • MAZ-502W (МАЗ-502В) - tractor unit designed for use with the MAZ-5245B (МАЗ-5245Б, for freight) and MAZ-5245W (МАЗ-5245В, for passenger transport) semi-trailers.

Technical specifications

For the MAZ-502.

  • Engine: four-cylinder in-line two-stroke diesel engine
  • Engine type: JaAZ-M204W
  • Power: 120–135 hp (88–99.5 kW)
  • Displacement: 4650 cm³
  • Bore: 108.0 mm
  • Stroke: 127.0 mm
  • Compression: 17: 1
  • Torque: maximum 500 Nm
  • Gearbox: manual five-speed gearbox with reduction, first gear unsynchronized
  • Loaded top speed: 50 to 52 km / h
  • Fuel supply: 2 × 225 l
  • Consumption: 45 l / 100 km at 40 km / h
  • On-board voltage: 24 V.
  • Drive formula : 4 × 4

Dimensions and weights

  • Length: 7150 mm
  • Width: 2700 mm
  • Height: 3025 mm above the tarpaulin
  • Track width: 2030 mm
  • Ground clearance: 350 mm
  • Wheelbase: 4520 mm
  • Height of loading sill: 1480 mm
  • Dimensions of the loading area (L × W × H): 3500 × 2030 × 1018 mm
  • Turning circle: 25 m
  • Empty weight: 7700 kg
  • Payload: 4000 kg
  • permissible total weight: 11,925 kg
  • Front axle load: 4475 kg
  • Rear axle load: 7450 kg
  • Trailer load: 9500 kg
  • Tire size: 15.00-20

Individual evidence

  1. ↑ a b c d Ministry of Automobile Transport of the RSFSR ; Vehicle Construction Institute NIIAT: Short Automobile Manual (краткий автомобильный справочник). P. 249 ff.
  2. ↑ See: DV-17/5 Kfz. Types of the National People's Army . Edition 1963.

literature

  • DV-17/5: Vehicle types of the National People's Army. 1963.
  • Werner Oswald: Motor vehicles of the GDR. Motorbuch-Verlag, Stuttgart, 1998, ISBN 3-613-01913-2 .
  • Ralf Kunkel: GDR truck type compass. Imports from the USSR. Motorbuch-Verlag, Stuttgart, 2015, ISBN 978-3-613-03799-1 .
  • Ministry of Automobile Transport of the RSFSR ; Vehicle Construction Institute NIIAT: Short Automobile Manual (краткий автомобильный справочник). Transport Publishing House, 6th edition, Moscow 1971.

Web links

Commons : MAZ-502  - Collection of images, videos and audio files