Exhibits  /  #201

Story of the exhibit

The combine originally belonged to the former Lenin collective farm in Paide district and worked in its Anna branch. At the end of the 1970s it was written off and passed to the Nõmme forestry district; its operator was Arne Pääsuke (11.12.1935 – 02.03.1997). Later, when Estonia regained independence, A. Pääsuke brought the combine to Küti farm at Taga-Võõbu near Kose, where it harvested grain for years. For the last two or three years before coming to the Old Tech Park, however, the machine stood unused. In August 2008 long-time Old Tech Park helpers Vello Virks and Indrek Kääramees got the combine ready for the Old Tech Park's harvest day. On 30 August the SK-4 took part in the harvest day alongside an SK-5 "Niva", a Yenisei-1200-N, three Don-1500s and a modern New Holland. Laine Müür remembers: "Arne Pääsuke came here to the Nõmme forestry district as a forest ranger at the beginning of 1970 from Laatre in Viljandi County, from the Mõisaküla forestry district; we lived together for over 20 years. He came to the ranger district next to mine (mine was called Vahessaare). He got this combine through Karla Vaksmaa, who had a senior position at the Anna workshop; the chairman of the collective farm at the time was Toivo Rebane. It was a written-off combine. This may have been around 1978–1980, so A. Pääsuke had the combine for 10–12 years before Estonia regained independence. Newer and more powerful combines came to the collective farm, so the old SK-4 was written off. A. Pääsuke harvested grain with this combine on the lands of the Nõmme forestry district. In those days there were big fields at Pöite, Vanamõisa, Nõmme... When Estonia became independent, the combine stayed on our farm. For 6–7 years it worked on the fields of Küti farm every autumn; it has stood completely idle for maybe 2–3 years. Arne Pääsuke died in 1997. As far as I remember, in collective farm times this combine harvested barley here on the fields of Taga-Võõbu. The operator was Hillar Saar from Mustla, who later left the area. At that time the village had 65 hectares of arable land or a little more. Pääsuke was a real machinery man. When he came here in 1970, I had a "Zaporozhets" that I had brought from Kyiv myself in 1965. He took the engine apart – the garage table and floor were covered with all sorts of nuts, bolts and gears. I peeked in through the door and thought this car would never run again. But he put it back together, however long it took! He and Karla Vaksmaa were inseparable: every autumn they went hunting together until midwinter. The moose hunt here was usually in my ranger district, that is, in Vahessaare. A. Pääsuke was a good forester, a good hunter, and he was handy with machinery too."

About the model

Production years: 1962–1973 The SK-4 combine is designed to harvest grain by direct threshing or by the swath method. With extra equipment it can also harvest maize, sunflowers, cereal crops, pulses and other crops. For picking up swaths it is fitted with a pick-up. The cutting width of the header is 4.1 metres; for short-stemmed crops a 6 m header can be fitted. The thresher's capacity at a grain-to-straw ratio of 1/1.5 is 4 kg/s. Working speed is 2–7 km/h and transport speed up to 18 km/h. Output when picking up wheat swaths is 2.2 ha/h, with fuel consumption of 10.6 kg/ha. The turning radius at the outermost point is 10.4 m to the left and 7.9 m to the right. The thresher is 1177 mm wide and the straw walker 3660 mm long. Overall dimensions: length 10,250 mm, width 4420 mm, height 3710 mm. The combine weighs 6160 kg and has a ground clearance of 270 mm. The combine uses an SMD-14 diesel engine (according to other sources SMD-15K) with 75 hp, started with an electric starter or a pony engine. Early combines had the SMD-7 engine with 65 hp (the same engine as on the SK-3). The combine has a twin-plate clutch designed to transmit a torque of 57 kgm. It has a variator with a fixed middle disc and linked movable outer discs. To reduce maintenance time, all tensioner pulleys, the speed variator and the knife connecting rod and rocker have sealed-for-life bearings. The operator's platform has an inclinometer to measure the combine's tilt. The permitted side slope is 15 degrees. At the 1963 Leipzig Fair (East Germany) the SK-4 was declared the best combine in the world. In 1964 it won a gold medal at international exhibitions and fairs in Czechoslovakia and the highest award – a first-class diploma – in Hungary. The SKP-4 half-track combine was also built on the SK-4; if desired, short tracks could be fitted instead of the drive wheels. The SK-4 was a common combine on Estonian collective and state farms in the 1960s and 1970s. From 1973, however, they were gradually replaced by SK-5 Niva and SK-6 Kolos combines, and by the early 1980s the SK-4 had practically disappeared from our fields. According to some sources, the "Avangard" collective farm in Tartu district still kept one SK-4 in service in the mid-1980s, preferring it to the "Niva" on lower, waterlogged fields because of its lighter weight. Presumably there were other such unusually long-lived examples here and there.
Rostovi kombainitehas «Rostselmaš»

Manufacturer

Rostov combine plant «Rostselmash»

Завод «Ростсельмаш» · Russian SFSR, USSR

The plant's birthday is considered to be 21 July 1929. At first it made various farm implements, but from the early 1930s it began to specialise in grain combines. Several models of the towed "Stalinets" combine were built, and from the end of 1956 to the beginning of 1958 the RSM-8 combine.

Read the manufacturer history
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