On March 27 remote end 9342 was installed on the west position (right hand as viewed by operator) and arm 9**4 removed and moved to anteroom.

Previous to this installation, arm 9342 received tensioning of the elevation twist pulley block and tightening of the tong cable opening via the tong cable drum. Tong opening was reduced to roughly 2" to achieve tension in the tong cable such that slack upon release of the system was reduced and tong cable didn't hop pulley in elevation/twist pulley block (this 2"opening is not enough to grasp the air ratchet but is suff. for holding a target...right manip will have to hold the air tool for now. It is also notable when dealing with the tong cable system that slack can cause the tong cable to hop off the secondary pulley in the wrist joint (where two cables run through a secondary pulley that has no retention feature).

Notable during this repair was the fact the the lock-down set screws on the elevation/twist pulley block were missing. These lock down the tensioning screws once the block has been tensioned. New set screws were installed after elevation twist cables were tensioned to their nominal value of 15 in lbs.

It is my recommendation that, when the spare remote arm is fixed and there is a window that this arm come back out and the tong cable be replaced (we have 6 on hand).