LO 1801 A | |
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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]
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]
Robur LO 1801 A | |
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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 |
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 mm rear: 1664 mm |
Overhang | front: 1200 mm rear: 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] |
Gear | Speed at 2800/min (on-road gear) | Speed at 2800/min (off-road gear) | Gradeability at 1700/min (off-road gear) |
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1st | 10 km/h | 6 km/h | 82 % |
2nd | 17 km/h | 9 km/h | 40 % |
3rd | 27 km/h | 15 km/h | 23 % |
4th | 48 km/h | 26 km/h | 13 % |
5th | 80 km/h | 45 km/h | 8 % |
Source | [15] |