KSC-00PP-1161 - STS-106 payload installation into Atlantis's payload bay at pad  


During the transfer the STS-106 payload to Atlantis on Launch Pad 39-B, a technician turns a
switch to move the Payload Ground Handling Mechanism (PGHM). The mechanism is located inside
the Payload Changeout Room (PCR) of each shuttle launch pad’s Rotating Service Structure. The
PGHM (pronounced pigem) removes payloads from a transportation canister and installs them into
the orbiter. It is essentially NASA’s largest fork-lift. 

 
                                               08/16/2000