Steelwrist Tiltrotator Front pin lock X04, User Manual

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7.1. Introduction Wheels/Track steering
If wheels or track steering is installed on the excavator, it is possible to steer the wheels or tracks using the rollers
in the handles.
The biggest advantage of this handle steering is that small movements can be made efficiently, which makes work
faster and more profitable.
Warning: Observe caution when using handle steering. Note that this steering alternative is for a workplace
control intended for short movements. Under no circumstances must handle steering be used during
transportation on public highways.
Warning: Installation of the handle steering is carried out by the installer with the aim of meeting applicable
safety requirements. Do not modify the system as this invalidates the CE-marking.
There is a stringent regulatory framework regarding wheels and track steering, with a strong focus on safety. Wheel
steering is regulated by international standard - ISO5010 Earth-moving machinery - Rubber-tire machines - Steering
requirement.
For excavators equipped with handle steering (i.e. steering wheel as main steering) the following applies:
• The steering wheel must always be active and have highest priority
• It must be possible to disengage handle steering
• The driver must reactivate handle steering upon entering the machine each time.
• The driver must receive a visual indication when handle steering is active
• It must be connected so that it is not possible to drive faster than 20 km/h with handle steering activated
• If handle steering indicates a problem, the system must switch to "safe mode" i.e. switch off
The regulatory framework for track steering is not as stringent but some of the points above also apply here. Above
all, that handle steering must be activated manually, indicated visually and be possible to disengage.
The possibility of installing wheel steering safely differs greatly depending on brand of excavator. In principle, there
are two types of wheel steered excavators where one type has an orbitrol with LS Signals. (Orbitrol = the unit that
converts steering wheel movements to a hydraulic signal). The LS signal is used so that the system can sense
steering wheel movements and thereby always give the steering wheel priority. The other type of excavator has
an orbitrol that does not have LS-signals.
To solve this problem, Steelwrist has two types of hydraulic block solutions to ensure that a safe installation can
be carried out regardless of excavator type.
7.2. Function description Wheels/Track steering
A schematic diagram of wheels and track steering is as follows:
Note: This applies when XControl G2 is used as main control system for handle steering. In some cases,
handle steering comes factory fitted and XControl then normally communicates directly with the excavator's
control system. Consult the excavator's user manual for further information.
Wheels steering:
50 | User Manual tiltrotator with Front pin lock
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| 7. Wheels and Track steering (Option)