OPERATOR'S MANUAL
Table Of Contents
- Why this handbook is so important!
- Warnings and Safety Regulations
- Alarm System
- The system
- Use of the hand-held transmitter
- Self-diagnosis
- Use when staying in the cab
- Deactivation loadspace detection superstructure/trailer
- The system LED
- Loss of hand-held transmitter
- System does not respond to hand-held transmitter
- Battery, hand-held transmitters
- Maintenance
- Disconnecting the vehicle battery
- Cab, Instruments and Controls
- Cab
- Entering and leaving the vehicle
- Doors
- Electrically operated windows
- Mirrors
- Electrical mirror adjustment
- Windscreen wiper blades
- Bunks
- Roof console - oddments shelves
- Tool boxes/storage compartments
- Roof hatch
- Adjusting roof spoiler
- Sun visors
- Stepwell lighting
- Interior lighting
- Bunk lamp
- Dashboard
- Instrument panel
- Warning indicators
- Control panel
- Control panel of heating/ventilation system
- Air conditioning switch
- Fan speed selector switch
- Temperature adjustment
- Air distribution selector switch
- Centre console
- Roof console
- Left-hand steering column switch
- Right-hand steering column switch
- Steering column switch, engine brake
- Adjustable steering column
- Auxiliary cab heater (air heating)
- Seats
- Master Display
- Inspections and Maintenance
- Overview of daily checks
- Opening the front panel
- Engine oil level
- Topping up coolant
- Screen washer reservoir fluid level
- Air filter indicator
- Wheels and tires
- Lighting and instruments
- Driver's seat and mirrors
- Trailer vehicle
- Overview of weekly checks
- Clutch fluid level
- Power steering fluid level
- Brake system air drier
- Draining the water separator
- Batteries
- General maintenance
- Lubricating fifth wheel/trailer coupling
- Cab maintenance
- Cleaning
- Preventative maintenance before the winter season
- Diesel fuel
- Cab heater
- Windscreen washer reservoir
- Maintenance after the winter season
- Cooling system
- Coupling and Uncoupling
- Driving
- General
- Steering lock/contact/starter switch
- Glow system
- Starting procedure
- Immobiliser fault
- Engine speed control
- Cruise control
- Vehicle speed limitation for special applications
- Driving style
- Differential lock
- Steering
- RAS-EC system
- ASR (Anti Slip Control)
- ABS brakes
- Parking brake and service brake
- Engine brake
- Stopping
- Manual Gearbox
- Automatic Gearbox
- Air suspension
- Emergency repairs
- Vehicle tool kit
- Tilting the cab
- Replacing the poly-V belt
- Replacing the fuel fine filter
- Bleeding the fuel system
- Draining the water separator
- Releasing the parking brake
- Wheel winch
- Jacking up the front axle
- Jacking up the rear axle
- Changing the wheel
- Tire inflating connection
- Towing
- Replacing bulbs
- Fuses and relays
- Technical Data and Identification
- Consumer Information
- Alphabetical index
Driving
176
STEERING
The steering gear is hydraulically assisted. As excessive pressure may damage the
hydraulic pump, stop turning the steering wheel when the wheels are at full lock or
are blocked by an obstacle. The steering gear may be damaged, if this is ignored.
RAS-EC SYSTEM
The RAS-EC system is an electronically controlled, speed dependent steering
system for the trailing axle. This steering system reduces the turning circle and tire
wear to a minimum.
In contrast to the mechanically steered axle, the RAS-EC system has no steering
linkage, but speed dependent, electronic-hydraulic steering by means of a steering
cylinder.
Speed-dependent
At speeds of up to 15 km/h (9mph), the trailing axle co-steers with the front axle,
both in forward and reverse direction. Above 15 km/h (9mph) the steering effect is
gradually reduced until 38 km/h (23 mph) is reached. Above 38 km/h (23 mph) the
trailing axle is fixed exactly in the centre position. This means that at higher speeds
optimum direction stability is ensured.
Faults
If a less serious fault occurs, the trailing axle is fixed in the centre position. The
trailing axle will no longer co-steer.
If a serious fault occurs, the complete RAS-EC system will be switched off. The
trailing axle is no longer activated but is forced to co-steer.
Note:
In the event of a serious fault, reversing is impossible. Due to friction between tire
and road surface the trailing axle will steer maximum in an uncontrolled manner.