Four wheel steering Safety systems There are two safety systems built into the unit - one in the hydraulic control valve and one in the electronic control box. Should either of the systems detect a fault then one of the green lamps will go out on the control panel and the system will cease operating or ’’lock-out’’. To reset the system, deactivate it by pushing the "Power Off" switch and then switch back on with "Power On". The valve safety system will often lock out if the unit is switched on when the engine is not running. This is normal and will reset itself when the engine is started. The control box safety system will lock out if it receives wildly varying signals from each axle - this can happen, for example, if the front steering is operated after engine start-up and before activating the FWS system. If this happens, re-align the front wheels with the rear wheels and then reset the system as above. It will also lock out if sensor wires or sensors are damaged. Emergency operation Should the system fail completely it can be operated manually to ‘‘get you home’’ as follows: Leave the control box switched off after starting the engine and attach the manual lever supplied to the hydraulic control valve. The valve is situated under the rearmost edge of the engine cowling. Operate the lever to centralise the rear wheels. The PHANTOM can then be driven and operated as normal.  You will find, however, that the rear steering will tend to creep out of position after a while and will need further periodic manual realignment until the fault can be rectified.   Operating the rear axle steering valve manually                     < 43 >