Appendix 1 -
Four wheel Steering
FOUR WHEEL STEERING SYSTEM
The four wheel steer system on the Stealth is controlled electronically. Signals from sensors mounted on both axles are continually monitored by the electronic control box and a varying signal is sent from the control to an electro-hydraulic proportional valve which, in turn, directs oil to the steering ram on the rear axle to ensure the rear wheels are always kept in the correct position. The rear wheel position is also continually monitored when in two wheel, crab and manual modes, again, to ensure that the wheels do not "creep" and to keep them in the correct position.
Safety precautions
1.
Always ensure the rear wheel area is clear before activating the
four wheel steer system.
2.
Always switch to the roadwork position for speeds above 12 m.p.h.
(20 kph)
3.
Do not switch modes when travelling at speed.
4.
After using the manual steering mode always return the control to
the centre position.
The control panel
Operating
The FWS system should be activated immediately after starting the engine. Ensure the rear wheel area is clear and then press the "Power On" switch on the control box. The Green lamp immediately below the power switch should then light up to show there is power to the box.
The "Electronics Active" and "Hydraulics Active" lamps will also light up as long as the mode selector switch is not in the "Roadwork" position.
All three green lamps must be lit before the electronic control system will function correctly.