SK1265-AT6
General data
Truck
1-2
SPIERINGS MOBILE CRANES USER MANUAL V 2.9
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1.3.
Steering
•
Axles 1 and 2 are mechanically steered with the steering wheel; axle 4 remains rigid, axles 3, 5
and 6 are hydraulically steered;
•
The steering system is hydraulically powered by means of a steering gear housing and auxiliary
cylinders;
•
The steering system is fitted with an emergency steering pump, so in case of main control pump
malfunction or diesel break-down, the truck remains steerable until it stands still.
With regards to the steering, there is a difference between road and off the road steering.
For more information, see
§ 3.9.6. Control panel steering system
Chapter 12. Steering system
1.3.1.
Road steering
Axles 1 and 2 are mechanically steered with the steering wheel; axle 4 remains rigid, axles 3, 5 and 6
are hydraulically steered and axles 5 and 6 steer speed-dependent in opposite direction till 50 kph
(31 mph).
1.3.2.
Off-the-road steering
There are special steering programs which are only available in off-the-road mode
(see
§ 4.13.5. Manoeuvring: Steering system
):
•
Small turning circle
: this steering program enables an extra small turning circle;
•
Manual
: the steering movement of axles 5 and 6 can be controlled; axles 1, 2 and 3 remain
mechanically steered by the steering wheel; axle 4 will be retracted;
•
Crab steering
: all steered axles steer in the same direction; axle 4 will be retracted;
•
Wall steering
: this steering program enables to drive away from an object with minimum swing of
the truck’s rear; axle 4 will be retracted.
Provisions for driving off the road:
•
Adjustable axle height;
•
Transfer case with off-the-road gear;
•
Longitudinal and transversal differentials can be locked.
1.4.
Suspension
•
Hydro-pneumatic suspension;
•
Possibility to block the suspension (e.g. when driving with erected tower).
1.5.
Braking system
•
Pneumatically operated brakes;
•
Parking brake;
•
Retarder;
•
Optional: connection air braked trailer.
1.6.
4-Point outrigger system
•
Full outrigger support base (wide): 7.95 m x 7.66 m;
•
Reduced outrigger support base (narrow): 7.95 m x 5.72 m.