Fortschritt

After the Famulus, tractor production in the GDR was revamped. The goal was to offer tractors in five different size categories. The smallest class was filled by the work machine carrier GT 124. A 3-cylinder TT 220 was developed for the 45-horsepower power class, the ZT 300 for the 90-horsepower class, and the ZT 400 for the 160-horsepower class. The largest size category was left for a later time. The TT 220 and ZT 300 were developed to the point of serial production readiness, but ultimately only the ZT 300 was put into production, which began in the autumn of 1967. The manufacturer was Traktorenwerk Schönebeck and the engine was made by Motorenwerk Nordhausen. The 6.6-liter 4-cylinder engine was developed based on the IFA W50 truck engine. The direct injection technology was licensed from MAN.

Also adapted from the IFA truck was the driven front axle, which was installed in the four-wheel-drive model ZT 303 introduced in 1971. The transmission in the ZT tractors consisted of three basic gears, three ranges forward and two backward, as well as a crawler gear. In total, there were 18+12 gears. The steering was power-assisted and the brakes were hydraulic drum brakes. The cab was modern even by Western standards. However, the pedals came through the floor and the gear levers were in the center. The strengths of the ZT included ease of maintenance and good gear ratios. Weaknesses were low ground clearance and a large turning circle. The weight was also quite high.

In 1973, the factory merged into the Fortschritt combine, and later the Fortschritt brand also appeared on the sides of the tractors. Initially, the ZT was either red or blue in color; in the later years, there were also Fortschritt green versions. The cab was always white. Around the mid-1970s, the steering was changed to hydrostatic. In the spring of 1978, the engine power was increased to 100 horsepower. ZT tractors were sold in Western Europe, at least in France, Belgium, and Spain. Approximately 70,000 units of the model series were produced.

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Tractors

ZT 300/303

At the end of 1983, the ZT 320 and the four-wheel-drive model ZT 323 were introduced. Compared to the preceding models, the engines' fuel efficiency had been improved, the brakes updated, the steering hydraulics equipped with their own pump, and the gearbox renewed. The most noticeable changes were, of course, the new design and the new cab. Standard equipment included an air-suspended seat, an adjustable steering wheel, and gear levers positioned on the right. The four-wheel-drive model also featured brakes on the front axle. Engine torque increase improved from 8% to 16%. The dual clutch was hydraulically assisted. In size, the tractor was still large, and the turning radius enormous. The tractor's color was now always Fortschritt green.

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Fortschritt ZT 320/323

In tractor production in the GDR, implement carriers played a central role. Production of the RS series reached 120,000 tractors, while the Famulus models remained at a few thousand in various versions. The first implement carrier to enter series production was the RS 08, which began production in 1953. It had a 0.69-liter two-stroke gasoline engine producing 15 horsepower. Through a directional reverser, there were 8 gears in both directions.

In 1957, the RS 09 was introduced, featuring a 1.02-liter V2 diesel engine manufactured under license from Austrian Warchalowski. Initially, it produced 18 horsepower, and later a 15-horsepower version was also offered. A new feature was the hydraulic lift. The predecessor’s green color was replaced by the same reddish-orange used also on Famulus tractors. In 1961, the engine was bored out to 1.15 liters, producing 16.5 horsepower. In 1962, an improved model, the RS 09/122, was introduced, which included, among other things, a reinforced gearbox and a restricted front axle tilt angle to prevent rollover. There were also many special versions of the RS 09, such as a model with a flatbed, a maize cultivation version, a vegetable cultivation version, and a mountain version. The country’s agricultural machinery production also produced dozens of different implements that utilized the RS’s capabilities.

In 1964, the country’s own expertise yielded a 25-horsepower V4 diesel that entered production. Instead of prototype designation RS 09/124, the model was marked GT 124. The basic structure remained the same, but the powertrain was reinforced to correspond to the increased power. Implement carriers were exported not only to Eastern Europe but also to African countries, among others.

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RS 09

The problem with the Famulus, especially in the more powerful model, was the motor’s short service life. Therefore, the improved model settled for a power output of 40 horsepower and a speed of 1800 rpm. According to local custom, the most important message in the brochure was that nearly 100% of the parts were the same as in the previous model. The primary color was gray-green.

A 3-cylinder Famulus 60 was also under development, but tractor production in Nordhausen ended in 1965, and regarding ordinary agricultural tractors, the GDR was temporarily dependent on its neighbors.

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Famulus 40

The first DDR tractors were the 40-horsepower RS 01 Pionier and the 30-horsepower RS 03 Aktivist. However, the model that reached the highest production numbers was the RS 04/30 from the Schlepperwerk Nordhausen, introduced in 1953, which had a 3.0-liter 30-horsepower engine. Its successor, introduced in 1956, was the RS 14/30 Favorit, which after receiving a new 3.28-liter engine became known as the RS 14/30 Famulus.

In 1960, an updated model of the RS 14 was introduced, called the Famulus 36. The tractor had the previously introduced 3.28-liter 2-cylinder engine, which, like the earlier models, was an air-cooled diesel. The engine speed was increased from 1500 to 1600 rpm. According to a book about DDR machines, the engine's lifespan was approximately 1000 hours. There were a total of 10+2 gears across two ranges. The Famulus was colored either orange-red or gray-green.

There was a recognized need for a more powerful tractor, and alongside it the 46-horsepower Famulus 46 was introduced. Its engine was water-cooled and the speed was 2000 rpm. Despite having water cooling, the engine’s durability was very poor. Water-cooled engines were also used in the 36 models.

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Famulus 36/46

More from this manufacturer

ZT
320/323

malli

hinta (sis. alv)

Series specifier

Manufacturer name

Model specifier

Imported to Finland

Years

Engine model

Cyl/Turbo/Intercooler

Displacement

Bore x stroke

Rated power

Max power

Torque

Gears

Creeper speeds

Synchronized gears

Powershift gears

Reverser

Speeds in km/h

Max. speed 

Hydr. flow l/min

Hydraulic pressure

Lift controls

Lift capacity

PTO speeds

Brakes

Steering

Turning circle m 2WD

Turning circle m 4WD

Front tyres 2WD

Front tyres 4WD

Rear tyres 2WD

Rear tyres 4WD

Weight 2WD

Weight 4WD

Height with cab

Length (2WD/4WD)

Wheelbase (2WD/4WD)

Fuel tank

Cab noise level

Solid cab

Diff. lock

Autom. differential locks

Air suspension seat

Air conditioning

Trip computer

Creeper gear

sylinterien lukumäärä

iskutilavuus

iskusuhde

suurin vääntömomentti, nm

suurin vääntömomentti, r/min

vääntömomentin nousu

polttonesteen kulutus suurimman tehon pisteessä

kytkimen tyyppi

ajovoimanotto

nopeus eteenpäin moottorin nimellisnopeudella, pienin

nopeus eteenpäin moottorin nimellisnopeudella, suurin

jarrut

hydrauliikan suurin paine

hydrauliikan suurin tuotto

nostolaitehydrauliikan hallinta

ulkopuolinen hydrauliikka, venttiililohkoja

1-toimisia

2-toimisia

nostovoima (kn=100 kg)

hydrauliikan tyyppi

kääntöympyrän halkaisija ilman ohjausjarrua

eturenkaat

takarenkaat

kokonaismassa säiliöt täynnä vakiovarustein

etuakselipaino

taka-akselipaino

suurin korkeus (ohjaamon ylimpään kohtaan)

kokonaispituus

akseliväli

maavara, pienin

polttoainesäiliön tilavuus

korkein melutaso

etuakselin tasauspyörästön lukko

etunostolaite

etulokasuojat

ilmastointilaite

perävaunun jarruventtiili

ilmaistuin

ohjauksen tyyppi

Etusivu

Ajoneuvot ja ympäristö

Huolto ja tekniikka

Lukijan idea

Maarakennus

Maatalous

Osastot

Metsä

Pääkirjoitus

Uutiset

Weteraani

Yritykset ja tapahtumat

Koneviesti

Lehdet

Konedata

Palvelut

Tilaa Koneviesti

Asiakaspalvelu

Jätä ilmoitus

Tilaa uutiskirje

Lähetä uutisvinkki

Lähetä palautetta

Lähetä oikaisupyyntö

Toimituksen yhteystiedot

Mediamyynnin yhteystiedot

Ota yhteyttä

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Model	ZT 320/323
Imported to Finland	No
Years	1984-90
Engine model	4 VD 14,5/12-1 SRW
Cyl/Turbo/Intercooler	4
Displacement	6560 cm³
Bore x stroke	120×145 mm
Rated power	100/1800 hp DIN/rpm
Torque	-
Gears	12+9
Powershift gears	hydr.
Speeds in km/h	1,4-30,7
Hydr. flow l/min	50 l/min
Lift controls	mech.
Lift capacity	2940 kg
PTO speeds	540/1000
Brakes	drum brakes
Steering	hydrost.
Turning circle m 2WD	12.2
Turning circle m 4WD	13.95
Front tyres 2WD	10-20
Front tyres 4WD	16-20
Rear tyres 2WD	18.4-34
Rear tyres 4WD	18.4-34
Weight 2WD	4950 kg
Weight 4WD	5255 kg
Height with cab	286-296 cm
Length (2WD/4WD)	471 cm
Wheelbase (2WD/4WD)	280/279 cm
Fuel tank	130 l
Cab noise level	85 dB
Solid cab	x
Air suspension seat	x

Konedata - Search

Fortschritt ZT 320/323

ZT 300/303

Fortschritt ZT 320/323

RS 09

Famulus 40

Famulus 36/46