24 April 2001

Checking out old encoder prior to dissassembly	Neal pulling the position data from the olde encoder prior to dissassembly	Removal of old encoder. Primarily took this picture because it shows the majority of the personnel involved in the encoder replacement
Removal of old encoder	Removal of old encoder	New encoder on the platform. Preparations for installation
Work on new encoder	Old encoder after removal	Examination of encoder mount and anti rotation rods
Engineer checking tolerances, discussion concerning installation of new encoder and adjustment of anti rotation rods
Checking tension on anti rotation device	Working on new encoder
New encoder ready for re-installation

25 April 2001

	View of entire lifting arrangement. Comprised of a harness and u bolt attached to the backing structure, a manual chain hoise and a harness under the encoder.	Digital dial gauge in position to measure vertical motion/displacement of the encoder
Last minute instructions from Vernon while Kevin completes hookup of lifting harness	Part of the rube goldberg solution to releiving tension on the anti-rotation rods	Nash's solution for attaching (digital dial gauge) displacement micrometer to measure movement of the encoder
Adjusting tensioner rods (anti rotation)	Closeup of lifting harness	Kevin using hoist and harness to lift encoder (removing tension from anti rotation rods.
Nash disconnecting the harness used to remove tension from anti rotation rods.	Nash making final adjustments to anti rotation device

Credits
Photos & Captions : Jim Hoge, April 2001.
Latest Update : Iain Coulson : 08 May 2001