Magirus-Deutz 6500 and 7500

Magirus-Deutz
A 6500 4x4 as a military flatbed truck
6500/7500
Manufacturer:	Magirus-Deutz
Sales designation:	A 6500 S 6500 A 7500 S 7500 From 1955: A 7500-Jupiter S 7500-Jupiter
Production period:	1953-1971
Previous model:	1st generation corner hood
Successor:	For A 7500 Jupter: Jupiter 6 × 6
Technical specifications
Designs:	Chassis, flatbed, tipper, tractor
Engines:	Deutz F8L 614 diesel, 10644 cm³
Power:	125 kW
Length:	8000 mm
Width:	2500 mm
Height:	2350 mm
Wheelbase:	4800 mm
Turning circle:	Diameter: 17.2 m
Payload:	7.65 t
Perm. Total weight:	13.6 t

Types 6500 and 7500 are two-axle trucks from Magirus-Deutz that were produced as an 18-tonne tractor unit and chassis with a longer wheelbase for various bodies. A preceding S means rear-wheel drive, an A stands for all-wheel drive. The rear-wheel drive models are equipped with a rounded bonnet, the all-wheel drive models have a square bonnet. The 7500 types have a larger payload than the 6500 types.

technology

Types 6500 and 7500 are trucks with ladder frames and rigid axles at the front and rear. Twin tires are mounted on the rear axle, the vehicles have single tires on the front axle, all tires are size 11-20. The axles are sprung with two semi-elliptical longitudinal leaf springs at the front and rear, there are no shock absorbers. All chassis are delivered with left-hand drive, the steering is a single-finger steering from ZF Friedrichshafen . The brake has brake drums with compressed air operated inner jaws and a diameter of 440 mm, of the Knorr or Westinghouse type , on all four wheels.

The drive power is transmitted from the engine to the gearbox via a single-disc dry friction clutch of the type Fichtel & Sachs LA 70 . The mechanical transmission of the type ZF AK 6-55 has six gears and a dog clutch. It is firmly attached to the engine. The transmission transmits the power to the rear wheels in S-types and to all wheels in A-types. The maximum speed of the car is 71 or 72 km / h.

engine

engine

The engine is a Deutz F8L 614 , an air-cooled four - stroke diesel engine with eight cylinders in a V-arrangement . It has two overhead valves per cylinder and indirect injection with swirl chambers . The displacement of 10644 cm³ results from a bore of 110 mm and a stroke of 140 mm. The engine delivers 125 kW at 2300 min ^-1 . The cylinders are individually made from special cast iron and have dry liners. There is a cylinder head made of a light metal alloy for each cylinder. The pistons are also made of light metal and have three compression rings and two oil control rings. In order to transfer the power from the pistons to the crankshaft, steel connecting rods with a double-T shaft cross-section are used; they are mounted on sliding bearings. The crankcase is a split cast iron housing with lubricating oil bores. The valves are operated via tappets , push rods and rocker arms from a camshaft located below , which is supported by five bearings and is driven by spur gears. The motor is lubricated by pressure circulation , the oil is conveyed by a gear oil pump and cleaned by a slot filter in the main flow. The sucked in air is filtered by an oil bath air filter with a cyclone and fed to each cylinder via a group suction pipe per cylinder bank. The fuel is filtered with a cell filter insert and pumped from the 150 liter fuel tank by a piston pump to the Bosch PE 8 A 75 injection pump, which injects it through a Bosch DNO SD 211 injection nozzle at an injection pressure of 124 bar into the swirl chamber.

Technical data of some models

	S 6500	A 7500			S 6500	S 7500
engine				Dimensions, weights and quantities
Engine type	F8L 614			cabin	Short cabin
cooling	Air cooling			length	8020 mm	8000 mm
Injection process	Vortex chamber injection, 124 bar injection pressure			width	2500 mm
Bore × stroke	110 × 140 mm			height	2340 mm	2350 mm
Displacement	10644 cc			wheelbase	4800 mm
rated capacity	125 kW at 2300 min -1			Gauge	front: 1930 mm rear: 1780 mm
maximum torque	608 Nm at 1200 min -1			Minimal ground clearance	265 mm	253 mm
Lowest fuel consumption	245 g / kWh			Turning circle diameter	18500 mm
Medium work pressure	6.13 bar			Overhang	front: 1255 mm rear: 1965 mm	front: 1255 mm rear: 1945 mm
Engine mass	850 kg			Chassis mass	4600 kg
Compression ratio	17.8: 1			Chassis capacity	8500 kg	9000 kg
Firing order	1-8-4-5-7-3-6-2			Vehicle curb weight	5950 kg
Power transmission				Maximum permissible total mass	13100 kg	13600 kg
coupling	Fichtel & Sachs LA 70			Maximum permissible axle loads	front: 4400 kg rear: 9000 kg	front: 4600 kg rear: 9200 kg
Power transmission on	Rear wheels	All wheels		payload	7150 kg	7650 kg
transmission	ZF AK 6-55			Top speed	72 km / h	71 km / h
Gear ratios				Fuel consumption	21.5 l / 100 km at 1920 min -1	21.5 l / 100 km at 1940 min −1
1st gear	6.63			Oil consumption	0.45 l / 100 km at 1920 min -1	0.45 l / 100 km at 1940 min −1
2nd gear	3.88			Capacity of the fuel tank	150 l
3rd gear	2.43			Oil sump capacity	min. 16 l / max. 20 l
4th gear	1.55			Capacity of the gearbox housing	6.5 l
5th gear	1.0			Electrical system
6th gear	0.71			Starter	Thrust armature starter Bosch BPD 6/24 , 24 V
R. Gang	5.66			alternator	Bosch LJ / GK 300/12/1400 R1 , 12 V, 300 W.
Manual transmission to rear wheels	8.88			Energy storage	2 × lead acid accumulator, 135 Ah, under the driver's seat
Transfer case	-	1.128 / 1.515		Glow plug	Bosch or Beru , 65 W.

gallery

• 

  S 6500 as a tractor

• 

  S 6500

• 

  A 7500

• 

  A 7500 from the side, with turntable ladder structure

literature

• Association of the automotive industry : Klöckner-Humboldt-Deutz AG, Ulm plant - Type S 6500 A 6500 , Group 14, No. 1310. Frankfurt am Main. October 1954

• Association of the automotive industry: Klöckner-Humboldt-Deutz AG, Ulm plant - type S / A 7500-Jupiter , group 14, no. 1360–1460. Frankfurt am Main. April 1956