Robur LO 1801 A (original) (raw)

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Motor vehicle

LO 1801 A
LO 1801 A fire engine
Overview
Type	Truck
Manufacturer	VEB Robur-Werke Zittau
Production	1965–1973
Assembly	East Germany: Zittau
Body and chassis
Class	1.8 t truck
Body style	Forward control truck
Layout	Front engine, all-wheel-drive
Platform	Robur
Related	LO 2501 / LD 2501
Powertrain
Engine	LO 4/1 (Otto, 3345 cm3, 51.5 kW)
Transmission	Manual five-speed synchromesh gearbox and two-speed splitter gearbox;10 forward, 2 reverse gears
Propulsion	Tyres
Dimensions
Wheelbase	3025 mm
Length	5350 mm
Width	2370 mm
Height	2530 mm[1]
Kerb weight	3200 kg[2]
Chronology
Predecessor	Robur LO 1800 A
Successor	Robur LO 2002 A

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

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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 splitter gearbox 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-spring single-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, carburetted LO 4/1 otto engine. It displaces 3.3 litres, and is rated 70 PS (51.5 kW).[11]

Technical specifications

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Technical specifications

| | Robur LO 1801 A | | | --------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Engine | | | Engine type | LO 4/14 VO 11,8/9,5-1 SRL | | Operating principle and layout | Straight-four, air-cooled, four-stroke, OHV otto enginewith downdraught carburetter and battery ignition system | | Bore × Stroke,Displacement | 95 × 118 mm,3345 cm3 | | Rated power (TGL 8346) | 70 PS (51.5 kW) at 2800 min−1 | | Max. torque | 22 kp⋅m (215.7 N⋅m) at 1800 min−1 | | Fuel type | VK 79 (leaded petrol, 79 RON)[1] | | Specific fuel consumption | 250 g/PSh (340 g/kWh) | | Source, unless otherwise stated | [11][12] | | Powertrain | | | Layout | Front engine, all-wheel drive | | Differential locks | No differential locks;engaging front wheel drive automatically locks front and rear axle(due to lack of a centre differential) | | Tyres | 4× 10—20″ extra single tyres[6] | | Clutch | T20K/DZ single-disc dry clutch[10] | | Gearbox | Five-speed[8] + two-speed splitter[9] | | PTO | Available as a factory option | | Measurements | | | Length | 5350 mm | | Width | 2370 mm | | Height | 2530 mm | | Wheelbase | 3025 mm | | Track width | front: 1636 mmrear: 1664 mm | | Overhang | front: 1200 mmrear: 1165 mm | | Turning circle | 14,900 mm | | Ground clearance | 265 mm | | Fording depth | 800 mm | | Slope angle | front: 36 °rear: 35 ° | | Mass | 3200 kg | | Payload | 1800 kg | | GVW | 5000 kg | | Fuel tank | 90+35 L | | Fuel consumption | 26 L/100 km (fully laden) | | Source, unless otherwise stated | [1][2] | | Electrical system | | | Generator | DC generator, 41.7 A, 12 V, 0.5 kW[13] | | Battery | 1 × Lead-acid battery, 12 V, 105 Ah[6] | | Starter | 12 V, 1.3 kW[14] |

Speed ranges and gradeability

1. ^ a b c VEB 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)
2. ^ a b VEB 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)
3. ^ Oswald, Werner (ed.): Kraftfahrzeuge der DDR, (2nd ed.), Motorbuch-Verlag, Stuttgart 2000, ISBN 3-613-01913-2, p. 230 (in German)
4. ^ a b c VEB 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)
5. ^ 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)
6. ^ a b c d VEB 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)
7. ^ 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)
8. ^ a b VEB 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)
9. ^ a b VEB 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)
10. ^ a b 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. 63 (in German)
11. ^ a b 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. 8 (in German)
12. ^ 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)
13. ^ 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)
14. ^ 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)
15. ^ 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)