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9-631: Production of the Ursus C-45 model began in 1946. Due to the need to begin production quickly, the Ursus company decided to implement the Lanz Bulldog D 9506 model as their URSUS C-45 because of the war indemnity that Germany was forced to pay by starting the 2nd World War. A part of Germany's war indemnities was the provision of production data and plans of the Lanz-Bulldog. Similar productions or also "copies" of

18-426: A copy of the D 9506. The D 9506 utilises a frameless block construction. It has a rear live axle and a dead front beam axle. The front axle was available with optional leaf springs. The tractor has air filled tyres. The D 9506 does not have a lockable differential. The gearbox is a manual 3-speed Lanz gearbox with a reverse gear, and an additional range, this makes 6 forward gears and 2 reverse gears. The minimum speed

27-418: A cylinder capacity of 10,300 cc. The gearbox was 3-speed and the cylinder was placed horizontally. To start the engine, it was first heated by a blow lamp . Then, the steering wheel was removed, along with the column, and slid into one of the flywheels . By then turning the steering wheel, the engine was started. This process required physical strength and skill. At the beginning of its production life,

36-584: A more efficient fan, surface-hardened crankshaft , headlight, hydraulic lift , and starting gasoline fuel injection . A metal frame was fixed to the windscreen, rear fenders were fitted, and a canvas cab was added. The production of the C-451 in Warsaw was completed in 1959, with a total construction of 50,000 units. From 1960 to 1965, the C-451 was manufactured by Zakłady Mechaniczne in Gorzów Wielkopolski, after

45-534: Is 3,3 km/h in first gear, maximum speed is 16,7 km/h in sixth gear. The drum brakes at the rear wheels are foot-operated, the handbrake locks the gearbox. The standard Lanz hot-bulb engine with a displacement of 10.3 L was used, it has a thermosiphon cooler. Compared to the predecessor series HR 6 and HR 7, the engine now has a better speed governor, the rated engine speed was increased from 540 min to 630 min . Many sorts of diesel oil can be used as fuel. The D 9506 has an electrical system. If

54-635: The C-45 was completed in July 1946 and was carried out under the guidance of Edward Habich . Under the designation LB-45, Habich built the first prototype in 1947, which was presented at the Labour Day parade in Warsaw on 1 May. Full production of the tractors was launched in September, with 130 units built by the end of 1947. The C-45 had a one-cylinder, two-stroke engine , with a maximum power of 33 kW (45 hp) and

63-455: The C-45 was manufactured with steel wheels. Modernising modifications were made to the tractor in later years, resulting in the improved C-451. The very first C-45, serial number 0001, worked 12,000 hours without intervening overhaul. Approximately 6,000 C-45 and C-451 tractors were exported to Brazil , China , and Korea . The C-451 was the result of modifications made to the ageing C-45 in 1954. These changes included simplified operation,

72-537: The legendary Lanz-Bulldog are the ' Pampa Bulldog ' in Argentina or the 'LE PERCHERON' in France. Examples of this German model were prevalent in the formerly German parts of post-war Poland, left behind following the expulsion of Germans at the end of World War II. Apart from its proximity and prevalence, the model also was advantageously high-powered relative to its simple construction and operation. Technical documentation for

81-545: The technical documentation was passed to them. Lanz Bulldog D 9506 The Lanz Bulldog D 9506 is a tractor of the HR 8 series, produced by Heinrich Lanz AG in Mannheim from 1934 to 1955, with a production stop in 1945. In total, 3817 units were produced. The tractor was sold under the brand name Ackerluft ( field-air ). The Ursus C-45 , produced in Poland from 1947 to 1959, was

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