Mercedes-Benz L 911
Mercedes Benz | |
---|---|
L 911
|
|
L 911 | |
Manufacturer: | Daimler-Benz AG |
Sales designation: |
L 328 (until 1963) L 911 (from 1963) |
Production period: | 1961-1984 |
Previous model: | L 312 |
Successor: | none |
Technical specifications | |
Designs: |
Short-nosed , cab-over-engine |
Engines: |
OM 312, OM 321 , OM 352 (all diesel, 4.6-5.7 l) |
Power: | 74-96 kW |
Length: | 5445-8825 mm |
Width: | 2340-2500 mm |
Height: | 2370-2510 mm |
Wheelbase: | 3200-4830 mm |
Turning circle: | 12.8-17.9 m |
Payload: | 4.64-5.925 t |
Perm. Total weight: | 9 t |
The Mercedes-Benz L 911 is a medium-duty two-axle truck of the Mercedes-Benz brand that was built at the Mercedes-Benz plant in Mannheim . It was produced from 1961 and replaced the L 312 . The vehicle was sold as the L 328 until 1963 . The short-nosed L 911 is available as a flatbed and tipper truck, as a chassis for special bodies and as a tractor unit, with or without all-wheel drive. It was also built as a forward control .
overview
The L 911 belongs to the short-nosed model range from Mercedes-Benz , which was reissued with the L 1113 in 1959. Compared to the L 312 , the short-nosed cars have been completely redeveloped, but the pre-chamber engines of the OM 312 series of the L 312 with a displacement of 4580 cm³ and 100 hp (74 kW) were still used in the L 911 until at least May 1962. From November 1962 at the latest, engines of the OM 321 series were installed, with a displacement of 5103 cm³ and 110 hp (81 kW). From 1964, the pre-chamber engines were finally replaced by the direct injection engines of the OM 352 series with a displacement of 5675 cm³, which were throttled to 110 hp (81 kW). Compared to pre-chamber engines, they are characterized by higher torque and should consume less fuel. A prototype was also built for the Federal Office for Civil Protection and Disaster Assistance with an OM 352 that was not throttled and developed 130 hp (96 kW). From 1967 the vehicles underwent a major facelift in which the windshield of the short-nosed vehicles was raised. The front handlebars got a completely new look.
Models
The L 911 is available in different versions:
- L 911: basic model, flatbed or chassis, rear-wheel drive
- LK 911: Rear-wheel drive tipper
- LA 911: platform or chassis with all-wheel drive
- LAK 911: tipper with all-wheel drive
- LS 911: tractor with rear-wheel drive
- LAS 911: tractor with all-wheel drive
- LP 911: forward control with a flatbed or as a chassis
- LPS 911: front-link tractor
- LAF 911: vehicle for special bodies with all-wheel drive
technology
Chassis and power transmission
All L 911 models are two-axle trucks with ladder frames and rigid axles at the front and rear. The axles are suspended on semi-elliptical leaf springs, the rear axle also has additional springs. The front axle is dampened with telescopic shock absorbers . The four wheels are steel disc wheels, the rear axle has double tires, the front axle single. As standard, the size 8.25–20 tires are mounted on split tapered shoulder rims of size 6.5–20. Apart from Daimler-Benz, Bosch and Teves were the suppliers for the brake system. The brake system is a hydraulically operated dual-circuit brake system with a single-chamber compressed air brake aid; the braking force acts on brake drums with a diameter of 400 mm on the front wheels and 408 mm on the rear wheels, with the exception of front control vehicles from 1967, whose brake drum diameter is 418 mm. The handbrake is a spring-loaded brake and acts on the rear wheels. The manufacturer of the steering is Daimler-Benz; it is a recirculating ball steering system with an undivided tie rod. All vehicles were available as both left-hand and right-hand drive.
The force from the engine via a single dry type Fichtel & Sachs H 32 transmitted to the transmission. The gearbox is a fully synchronized five-speed gearbox from Daimler-Benz that is interlocked with the engine. It is shifted with a shift lever next to the driver's seat, which acts directly on the transmission. The drive is from the transmission power via an articulated shaft to a hypoid - bevel gear axle drive transmitted to the rear axle.
All-wheel drive models have three cardan shafts as a power transmission element. They also have a transfer case with on-road and off-road transmission. The ratio from the gearbox to the front axle is 6.833: 1 higher than that to the rear axle with 6.857: 1. The drive of the front wheels must be switched on manually. The differential gears can be locked.
engine
The engine is in the first vehicles of the Mercedes-Benz OM 312 , a standing rows - six cylinder - four cycle - Diesel engine having two valves , indirect injection and water cooling . The cylinder block made of molybdenum alloy cast iron and the split crankcase are made from a single cast. With a cylinder bore of 90 mm and a piston stroke of 120 mm, the engine has a total displacement of 4580 cm³. The pistons are forged pistons made of light metal from Mahle , each with four compression rings and two oil control rings . The force is transmitted via diagonally split connecting rods made of heat-treated steel to a forged crankshaft with seven bearings, flame-hardened at the bearings. The connecting rod and crankshaft have lead bronze plain bearings with steel support shells. The crankshaft has six counterweights and a vibration damper.
A camshaft with four bearings in plain bearings runs in the crankcase and is driven by helical spur gears. It operates the hanging valves via bumpers and rocker arms . Each cylinder has an inlet and an outlet valve. The cylinder head that covers all cylinders has an asbestos-containing seal.
The pressure circulation lubrication works with a gear oil pump in the oil sump and a slot filter in the main flow. The fuel pump conveys the fuel from the tank through a felt tube filter to the Bosch PES 6 A70 B 410 RS 64/7 injection pump, which injects it into the prechambers via Bosch DNO SD 211 injection nozzles . The injection pump has a centrifugal governor. The air is sucked in in front of the cooler and cleaned with an oil bath air filter. The engine is cooled with a tube cooler, the warm exhaust air of which is blown away by a fan.
The OM 321 engines used from 1962 are based on the OM 312 and have a larger displacement. The engines of the OM 352 series, on the other hand, are direct injection.
Technical specifications
1961–1962
Parameters | L 328 | LK 328 | LP 328 | LA 328 | LAK 328 | LAS 328 | LS 328 | LPS 328 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dimensions and weights | |||||||||||||||||
Wheelbase (mm) | 3600 | 4200 | 4830 | 3600 | 3200 | 3600 | 4200 | 4830 | 3600 | 4200 | 3600 | 3200 | 3600 | 3200 | 3600 | 3200 | 3600 |
Length (mm) | 6175 | 6875 | 7875 | 6045 | 6330 | 7330 | 7725 | 8825 | 5845 | 6515 | 6045 | 5445 | 5845 | 5445 | 5845 | 5655 | 6035 |
width (mm) | 2340 | 2500 | 2340 | 2500 | |||||||||||||
Height (mm) | 2370 | 2470 | 2510 | 2370 | 2470 | ||||||||||||
Front track (mm) | 1905 | 1820 | 1890 | 1905 | |||||||||||||
Rear track (mm) | 1725 | ||||||||||||||||
Ground clearance (mm) | 255 | ||||||||||||||||
Turning circle diameter (m) | 13.6 | 15.2 | 16.9 | 13.6 | 12.8 | 13.9 | 15.5 | 17.2 | 15.9 | 17.9 | 15.9 | 14.6 | 15.9 | 12.6 | 13.6 | 12.8 | 13.9 |
Empty weight kg) | 3500 | 3570 | 3800 | 4000 | 3585 | 3700 | - | - | - | - | 4360 | 3415 | 3450 | 3075 | 3095 | 3155 | 3160 |
Payload (kg) | 5500 | 5430 | 5200 | 5000 | 5415 | 5300 | - | - | - | - | 4640 | 5585 | 5550 | 5925 | 5905 | 5865 | 5840 |
Maximum permissible total weight (kg) | 9000 | ||||||||||||||||
Powertrain | |||||||||||||||||
coupling | Single-disc dry clutch Fichtel & Sachs H 32 |
||||||||||||||||
transmission | Manually shiftable five-speed gearbox from Daimler-Benz, fully synchronized | ||||||||||||||||
Drive on | Rear wheels | All wheels | Rear wheels | ||||||||||||||
Gear ratios | 1st gear: 8.98 2nd gear: 4.785 3rd gear: 2.736 4th gear: 1.663 5th gear: 1.00 R. gear: 8.29 |
||||||||||||||||
Translation from the gearbox to the rear axle | 6.857 | ||||||||||||||||
Translation from the gearbox to the front axle | - | 6.833 | - | ||||||||||||||
Top speed (km / h) | 75.5 | 73 | 75.5 | ||||||||||||||
Effective total braking area (cm 2 ) | 2200 | ||||||||||||||||
engine | |||||||||||||||||
Engine type | Mercedes-Benz OM 312 | ||||||||||||||||
Engine structure | Six-cylinder in-line four-stroke diesel engine | ||||||||||||||||
Mixture formation | Pre-chamber injection | ||||||||||||||||
Valve control | hanging valves, two valves | ||||||||||||||||
cooling | Water cooling | ||||||||||||||||
Bore × stroke | 90 × 120 mm | ||||||||||||||||
Displacement | 4580 cc | ||||||||||||||||
Nominal power according to DIN 70020 | 100 DIN-PS (74 kW) at 3000 min -1 | ||||||||||||||||
Maximum torque according to DIN 70020 | 27 kpm (265 Nm) at 1600 min −1 | ||||||||||||||||
Medium piston speed | 12 m / s | ||||||||||||||||
Compression ratio | 19.8: 1 | ||||||||||||||||
Injection pressure | 132 bar | ||||||||||||||||
Firing order | 1-5-3-6-2-4 | ||||||||||||||||
Inlet valve opens | 22 ° before top dead center | ||||||||||||||||
Inlet valve closes | 58 ° after bottom dead center | ||||||||||||||||
Outlet valve opens | 56 ° before bottom dead center | ||||||||||||||||
Outlet valve closes | 26 ° after top dead center | ||||||||||||||||
Engine ground | 385 kg | ||||||||||||||||
Oil consumption (ml / 100 km) | 200 | ||||||||||||||||
Fuel consumption according to DIN 70030 (l / 100 km) | 14.9 | 16.5 | depending on the trailer | ||||||||||||||
Filling quantities | |||||||||||||||||
Capacity of the fuel tank (l) | 100 | ||||||||||||||||
Oil pan capacity (l) | 7-9 | ||||||||||||||||
Capacity of the cooling system (l) | 21st | 24 | |||||||||||||||
Capacity of the gearbox housing (l) | 3.7 | ||||||||||||||||
Electrical system | |||||||||||||||||
Glow plugs | 36 W heating power | ||||||||||||||||
Starter | 12 V thrust armature starter Bosch BNG 4/12 CR 201 (electromagnetically operated) | ||||||||||||||||
alternator |
Bosch LJ / GG 240 / 12-2400 R16 (12 V, 240 W) V-belt drive, the start of charging at 928 min -1 on the crankshaft |
||||||||||||||||
battery | 1 × lead acid accumulator 12 V, 135 Ah |
Technical data OM 321 (1962–1963)
Parameters | OM 321 |
---|---|
Engine type | Series - six-cylinder - four stroke - Two valve - OHV - antechamber - diesel engine |
cooling | Water cooling |
Inlet valve opens | 22 ° before top dead center |
Inlet valve closes | 58 ° after bottom dead center |
Outlet valve opens | 56 ° before bottom dead center |
Outlet valve closes | 26 ° after top dead center |
Firing order | 1-5-3-6-2-4 |
Engine ground | 385 kg |
Injection pressure | 127.5 bar |
Starter | Thrust armature starter Bosch BNG 4/12 CR 201 |
Bore × stroke | 95 × 120 mm |
Compression ratio | 20.8: 1 |
Displacement | 5103 cc |
Nominal power according to DIN 70020 | 110 DIN-PS (81 kW) at 3000 min -1 |
Maximum torque according to DIN 70020 | 30.5 kpm (299 Nm) at 1600 min −1 |
Technical data OM 352 (from 1964)
Parameters | OM 352 |
---|---|
Engine type | Six-cylinder in-line four-stroke diesel engine |
Mixture formation | Direct injection |
Valve control | OHV valve control, two valves |
cooling | Water cooling |
Bore × stroke | 97 × 128 mm |
Displacement | 5675 cc |
Nominal power according to DIN 70020 | 110 DIN-HP (81 kW) at 2900 min -1 |
Maximum torque according to DIN 70020 | 32 kpm (314 Nm) at 1600 min −1 |
Medium piston speed | 12.4 m / s |
Compression ratio | 17: 1 |
Injection pressure | 196 bar |
Firing order | 1-5-3-6-2-4 |
Inlet valve opens | 29 ° before top dead center |
Inlet valve closes | 55.9 ° after bottom dead center |
Outlet valve opens | 54 ° before bottom dead center |
Outlet valve closes | 20.8 ° after top dead center |
Engine ground | 410 kg |
Oil consumption (ml / 100 km) | 250 |
Individual evidence
- ↑ Daimler-Media: The end of the long hoods: The first short-hooded hoods came in 1959 . February 5, 2009
- ↑ a b BBK : data sheet rescue vehicle . 1971
literature
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type L 328 and LK 328 Group 14, number 830. Frankfurt am Main. May 1961.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type L 328 and LK 328 Group 14, number 900. Frankfurt am Main. November 1962.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LP 328 Group 14, number 830a. Frankfurt am Main. May 1961.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LP 328 Group 14, number 900b. Frankfurt am Main. November 1962.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LA 328 LAK 328 Group 14, number 900. Frankfurt am Main. May 1961.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LA 328 LAK 328 Group 14, number 900a. Frankfurt am Main. November 1962.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LAS 328 Group 15, number 900. Frankfurt am Main. November 1961.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LAS 328 Group 15, number 900. Frankfurt am Main. May 1961.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LS 328 Group 15, number 830. Frankfurt am Main. May 1961.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LS 328 Group 15, number 900. Frankfurt am Main. November 1962.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LPS 328 Group 15, number 830a. Frankfurt am Main. May 1961.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LPS 328 Group 15, number 900a. Frankfurt am Main. November 1962.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LP 911 Group 14, number 899. Frankfurt am Main. June 1967.
- Association of the Automotive Industry : Daimler-Benz AG. Mannheim plant: Type LPS 911 Group 15, number 899. Frankfurt am Main. June 1967.
Web links
Vehicle class | 1920s | 1930s | 1940s | ||||||||||||||||
6th | 7th | 8th | 9 | 0 | 1 | 2 | 3 | 4th | 5 | 6th | 7th | 8th | 9 | 0 | 1 | 2 | 3 | 4th | |
Compact class | W 15 (type 170) | ||||||||||||||||||
W 23 (type 130) | |||||||||||||||||||
W 30 (type 150) | |||||||||||||||||||
W 28 (type 170 H) | |||||||||||||||||||
Middle class | W 02 (type Stuttgart 200) | W 136 / W 149 (types 170 V / 200 V) | |||||||||||||||||
W 11 (type Stuttgart 260) | W 143 (type 230 n) | ||||||||||||||||||
W 21 (type 200/230) | W 153 (type 230) | ||||||||||||||||||
W 138 (type 260 D) | |||||||||||||||||||
upper middle class | W 03 / W 04 / W 05 (types 300/320/350) | W 18 (type 290) | |||||||||||||||||
W 10 / W 19 (types 350/370/380) | W 142 (type 320) | ||||||||||||||||||
W 22 | |||||||||||||||||||
Upper class | Type 400 & Type 630 | W 24 / W 29 / W 129 (types 500 K / 540 K / 580 K) | |||||||||||||||||
W 08 (type Nürburg 460/460 K / 500 / type 500 N) | |||||||||||||||||||
W 07 / W 150 (types 770/770 K) | |||||||||||||||||||
Sports car | Model K | ||||||||||||||||||
W 06 (type S / SS / SSK / SSKL) | W 24 / W 29 / W 129 | ||||||||||||||||||
Off-road vehicle | W 103 (type G1) | W 31 (type G4) | |||||||||||||||||
W 133 III (type 170 VG) / W 139 (type 170 VL) / W 152 (type G5) | |||||||||||||||||||
Vans | L 3/4 | L 1000 Express | L 301 | ||||||||||||||||
L 300 |