7TRACKER 5100/5100i/5500/5500i Installation and Operation ManualNAVMAN1-3 Removing and replacing the display unitIf the display unit is bracket mounted then the displayunit can easily be removed and replaced for securityor protection.Removing the display unit:1 Turn the TRACKER off by holding until thedisplay turns off.2 Push the dust cover over the display unit.3 Hold the display unit with one hand. Loosenthe knob on the mounting bracket and carefullylift the unit off the mounting bracket.4 The display unit has some cables plugged intothe back.Unplug each black plug by turning the lockingcollar a quarter turn anticlockwise and pullingthe plug out.If there is a gold plug, unscrew the lockingcollar anticlockwise and pull the plug out.5 Push the attached dust covers over theexposed ends of the plugs to protect them.6 Store the display unit in a safe place, such asthe optional NAVMAN carry bag.Replacing the display unit1 Remove the dust covers from the plugs. Plugthe black plugs into their sockets on the backof the display unit:Match the colour on the end of the plug tothe colour of the nut on the socket.Hold the plug against the socket and rotatethe plug until it slides into the socket.Lock the plug in place by pushing thelocking collar towards the socket andturning it a quarter turn clockwise.Nothing will be damaged if a cable is pluggedinto the wrong socket by mistake.2 If the unit has a gold plug:Plug it into its socket on the back of thedisplay unit.Hand tighten the locking collar clockwise -do not overtighten.3 Hold the display unit in place on the mountingbracket shaft, with the rubber washer clampedbetween the bracket and the display unit.4 Adjust the tilt and rotation of the display forbest viewing and hand tighten the knob on themounting bracket. Remove the dust cover.Pull card holder out ofTRACKER.Pull any card out of holder.Put card in case.CardHolderGold contacts under herePush new card into holder.Ensure the gold contactsare on the outer edge andunderneath (see above).Keep the card’s case.Push card holder fully intoTRACKER.Changing the plug-in card431 2Warning: Keep the holder in place in the TRACKER at all times to preventmoisture from entering card compartment.