Quote: (Originally Posted by
abowie)

Wcich side do you hit? The front (with the display) or the back (with the black plastic covers)?
You remove the back of the two adjoining units and then tap. The back of the displays interlock so that they cannot be separated unless the backs are removed. Just remve the 4 screws and lift the back off. Put the rotary switch to the "Calibrate" so you are not trying to pull a vacuum in the display as you pull it apart. I tapped with the handle of a heavy screwdriver. DO NOT try to take a display off without removing the back... you'll either fail to do anythinhg or will break at least one display (and maybe two).
You can remove the display without cutting wires by using a jewelers screwdriver to push the little lock on the MOLEX connector which attaches the wires to the sensors and then removing the wires/pins from the connector plug. Then you can loosen the nut on the gland and then pull the cable right thru the bulkhead connector. A new Fisher cable will slip right thru the same bulkhead connector. The display and VR-3 cable can be interchanged in less than 5 minutes.... so Option #1 works fine and you can carry the spare display and replace the VR-3 with it on the spot if needed. All you need is a VR-3 cable *with MOLEX pins soldered to the wires* and you are in business.
Dave Sutton