The Robur LO 1801 A is a forward control off-road truck, made by East German manufacturer VEB Robur-Werke Zittau. It was produced from 1965 to 1973, alongside the on-road model LO 2501. Unlike the on-road model, the LO 1801 A has all-wheel drive, which came at the cost of a reduced payload. LO 1801 A is an abbreviation for air-cooled otto, 1800 kg payload, all-wheel drive.
Like its predecessors, the LO 1801 A was used by the East German military, police, fire brigade, and open pit mining rescue service. Export versions were called Safari.[3]
Technical description
The LO 1801 A is a light, 1.8 tonne, two-axle, all-wheel-drive, body-on-frame, forward control truck with single tyres.
The frame has two U-section longitudinal members, as well as four tube, and two square-shaped crossmembers. It comes with only few grease nipples.[4] Both front and rear axles are leaf sprung rigid live axles, only the front axle has hydraulic shock absorbers. Differentials with a reduction of 6:35 were installed.[5] The steering system is a worm-and-lever steering system.[4] All four wheels come with 9.00—20 inch rims, 10—20 inch extra tyres,[6] and drum brakes. Robur installed a dual-circuit braking system.[4] The cab is made of steel, has front-hinged doors, a split windscreen, and split A-pillars with narrow windows for improved visibility. Unlike the LO 2501, which only seats three, the Robur LO 1801 A seats four.[6]
The gearbox is a manual, five-speed, dog-leg[7]gearbox with synchromesh and helical gearing in gears 2–5. First and reverse are straight cut gears without synchromesh.[8] The transfer box is an unsynchronised, three-shaft gearbox with gearshift sleeves. It has an on-road gear, an off-road gear, and an additional gear for switching front-wheel drive.[9] A dry diaphragm-springsingle-disc clutch, type T20K/DZ, transmits the torque from the engine to the gearbox.[10] The LO 1801 A is powered by an air-cooled, straight-four, OHV, carburettedLO 4/1otto engine. It displaces 3.3 litres, and is rated 70 PS (51.5 kW).[11]
Technical specifications
Technical specifications
Robur LO 1801 A
Engine
Engine type
LO 4/1 4 VO 11,8/9,5-1 SRL
Operating principle and layout
Straight-four, air-cooled, four-stroke, OHV otto engine with downdraught carburetter and battery ignition system
^ abcVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 14 (in German)
^ abVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 15 (in German)
^Oswald, Werner (ed.): Kraftfahrzeuge der DDR, (2nd ed.), Motorbuch-Verlag, Stuttgart 2000, ISBN3-613-01913-2, p. 230 (in German)
^ abcVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 10 (in German)
^VEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 9 (in German)
^ abcdVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 11 (in German)
^VEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 16 (in German)
^ abVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 7 (in German)
^ abVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 8 (in German)
^ abVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für den Motor Typ LO 4/1 für Fahrzeugtyp LO 2501 und LO 1801 A, VEB Fachbuchverlag Leipzig 1967, p. 63 (in German)
^ abVEB Robur-Werke Zittau (ed.): Reparaturhandbuch für den Motor Typ LO 4/1 für Fahrzeugtyp LO 2501 und LO 1801 A, VEB Fachbuchverlag Leipzig 1967, p. 8 (in German)
^VEB Robur-Werke Zittau (ed.): Reparaturhandbuch für den Motor Typ LO 4/1 für Fahrzeugtyp LO 2501 und LO 1801 A, VEB Fachbuchverlag Leipzig 1967, p. 9 (in German)
^VEB Robur-Werke Zittau (ed.): Reparaturhandbuch für den Motor Typ LO 4/1 für Fahrzeugtyp LO 2501 und LO 1801 A, VEB Fachbuchverlag Leipzig 1967, p. 57 (in German)
^VEB Robur-Werke Zittau (ed.): Reparaturhandbuch für den Motor Typ LO 4/1 für Fahrzeugtyp LO 2501 und LO 1801 A, VEB Fachbuchverlag Leipzig 1967, p. 60 (in German)
^VEB Robur-Werke Zittau (ed.): Reparaturhandbuch für die Fahrgestelle der Lastkraftwagen LO 2501 / LD 2501 / LO 1801 A, VEB Fachbuchverlag Leipzig 1966, p. 12 (in German)
