ÖAF SLKW
The ÖAF s-LKW is an all -terrain truck manufactured by the ÖAF company which was built for the Austrian Armed Forces . Its base is the MAN gl of the German armed forces .
Drive concept
The vehicle has permanent all-wheel drive , with three additional locks that can be activated depending on the type of terrain. Due to the interleave lock, the drive power is evenly distributed to all 3 axles at 33% each. In addition, the rear axle differential lock and the front axle differential lock (only on extremely slippery roads or off-road) can be activated. The locks are switched electro-pneumatically.
The power is transmitted by a 6-speed change gearbox, which is only separated from the engine by a 1-disc clutch. In addition, the vehicle has a torque converter , which enables it to be started without using the clutch. (The gear is still engaged when the vehicle is stationary and the vehicle starts rolling automatically after the brake is released.) The torque converter increases the torque by 2.5 times. In order to be able to continue driving more economically at higher speeds, the torque converter is overridden by a clutch from a certain speed (approx. 1500 rpm) (the converter is thereby closed).
In order to be able to overcome short inclines quickly, the SLKW has a kick-down. If the accelerator pedal is depressed as far as it will go, a push button attached to the cab floor is actuated. This opens the converter, the engine revs up and now the truck can even accelerate uphill. The driver recognizes that the converter is switched on by the lighting up of a control lamp which is attached below the rev counter.
In city traffic, 3rd gear is used for moving off, 4th gear is used as a starting gear in normal operation. Depending on the load, starting in 6th gear is also possible, but the handlebars have to accelerate a lot and the truck drives in the converter area for a long time, which can lead to the converter oil overheating if the wrong gear is selected and the converter is driven for a long time. The converter area should therefore only be used when starting up.
In difficult terrain, the torque converter prevents the engine from stalling if the wrong gear is selected, even if you are in the middle of an incline. It also makes some gear changes superfluous in the field and thus often prevents a decisive interruption in tractive power. In addition, the converter is gentle on the material, as it prevents sudden loads - such as those often caused by improper use of the clutch.
Overall, the unusual drive concept makes a decisive contribution to the outstanding driving characteristics in the field and the particular suitability as a towing vehicle.
Furnishing
The vehicle is suitable for transporting materials as well as personnel. All that is required is to set up the existing benches on the loading area. According to the initial registration, up to 21 people can be transported with the SLKW (18 on the loading area, 3 in the driver's cab).
To make loading easier, there are models with a crane ( Palfinger PK 7500N, PK 17000N), and there is also a work basket for the large crane. The large crane can be operated using a cable remote control.
All models are equipped with a Rotzler Treibmatic cable winch . The cable winch has a max. 8 t tractive force to the rear with the pulley supplied with the vehicle max. 16 t pulling force. A connectable cable remote control allows the winch to be controlled from outside the truck.
The vehicle has two tanks (250 l each) on either side below the engine compartment doors. The switch for selecting the tank is located behind the right bonnet. However, this switchover may only take place when the engine is switched off.
variants
| Full name of the armed forces | abbreviation | Type |
|---|---|---|
| OFF-ROAD, HEAVY-DUTY TRUCK: D, 10t, with winch and Palfinger PK 7500N crane | GLSLKW10T / ÖAF / P | 20,320 G1 |
| OFF-ROAD HEAVY TRUCK: D, 10t, with winch | GLSLKW10T / ÖAF / + | 20,320 G2 |
| ALL-OFF-ROAD HEAVY TRUCK: D, 10t, with winch and Palfinger crane PK 17000N | GLSLKW10T / ÖAF / SP | 20,320 G3 |
| CRANE 10t Liebherr crane LTMF 1030V | 20,320 G4 | |
| MULTI- PURPOSE DECONTAMINATION DISASTER PROTECTION VEHICLE (based on S-LKW type 20.320 G1) | KATFRZG / SLKW | 20,320 G5 |
Technical specifications
- Motor: MAN V8 turbo diesel type D 2538 with MTA 320 hp and 236 kW at 2500 min -1
- Displacement: 12.7603 liters
- Tank: 2 × 250 liters of diesel
- Net weight: 11,620 kg (without crane), 13,190 (with cable winch and PK 7500N crane)
- Max. permissible total weight: 22,000 kg
- Technically permissible total vehicle mass: 100,000 kg
- Length: 8.425 m (without crane)
- Width: 2.50 m (without side mirror)
- Height: planed down 3.0 m planed up normal position 3.034 m planed up, raised 3.204 m with loading crane PK 7500N 3.40 m
- Fording depth 0.80 m
- Splash water depth 1.2 m
- Consumption: 35 to 55 liters per 100 km (without trailer; without idle times), off-road up to 100 l / 100 km
- Fuel tank: 2 × 250 liters
- Design speed: 83 km / h
- Idle speed 500 min −1
- Maximum speed 2650 min −1 loaded or 2750 min −1 unloaded
- Torque: 1009 Nm
- Gradeability (without trailer): approx. 60%
- Clutch: converter clutch ZF WSK 400/1
- Change gear: ZF S6 - 90 (6 forward 1 reverse gear)
- Transfer case: ZF A 600 / 3D (lockable planetary compensating gear)
- Brake: front axle hydraulic, rear axles braked by means of air pressure
Other uses
- A special conversion by Lohr has been in use as TLF-A 4000 since 1985 at the Stainz volunteer fire brigade in Styria, which was withdrawn at the end of the year (2017).
- On the basis of the sLKW, ÖAF also developed a wheeled armored vehicle , but its further development was discontinued.
- For use in Bosnia-Herzegovina ( AUSLOG / IFOR or SFOR ) from February 1996 a train truck of a transport company was "hardened", i. H. the cab covered with Kevlar panels. There were protective grilles for the windows, but they were hardly used because the drivers felt too disturbed in their view. Hardening increased the net weight and decreased the payload accordingly by approx. 2 t.
Footnotes
- ↑ http://ff-stainz.at/index.php/fahrzeuge/tlf-a-4000
- ↑ http://www.doppeladler.com/oebh/hp2005.htm
- ^ Austrian Armed Forces: ÖAF sLKW with hardening in Bosnia. In: Photo archive of the Austrian Armed Forces. Austrian Armed Forces, accessed on January 12, 2019 .
literature
- Walter J. Spielberger: Motor vehicles and tanks of the Austrian army from 1896 to today . Motorbuch-Verlag, Stuttgart 1976, ISBN 3-87943-455-7 .
