EVA Checklist - NASA

CMG R & R – TASK DATATools:EV1 (SSRMS)EV2 (FF)PGTPGT7/16 (wobble) socket-12 ext 7/16 (wobble) socket-6 extRADEVA Fasteners:FastenerNameCMG at Z1BoltsCMG Shims(fixed, Z1)CMG Shims(fixed, FSE)CMG at FSEBoltsCMG Shims(adjustable)Node LightStanchion BoltLabelHeadSizeQtyInstallTorque(ft-lb)ReleaseTorque(ft-lb)FailureTorque(ft-lb)7/16 6 22.92 21.7 26.7 10Turns7/16 4 5.0 8.0 9.17 10.97/16 4 5.0 8.0 9.17 10.97/16 6 22.92 21.7 26.7 107/16 4 2.5 N/A 5.6 2-57/16 1 23.0 22.5 37.5 10,16.5EVA Connectors:Harness From To Conn FunctionSizeCMG J6 Failed CMG, P6 New CMG, P6 15 PWR to THACMG J1 Failed CMG, P1 New CMG, P1 15 PWR to EACMG J2 Failed CMG, P2 New CMG, P2 15 Primary Data Bus, LBGNC-1, Channel ACMG J3 Failed CMG, P3 New CMG, P3 15 Secondary Data Bus,LB GNC-1, Channel BWarnings:1. The pop-up spring on the CMG captive EVA fasteners (CMG Bolts1-6) presents a puncture hazardCautions:1. Avoid inadvertent contact with CMG2. CMG Shims must be removed within 2 hrs of CMG powerdown onZ13. Equal force should be exerted by crew in order to prevent bindingwhen removing/installing the CMG from its mounting on Z1 andthe FSE4. CMG may have oily residue around the Torque Module Assembly,avoid contact (may cause damage to other ORUs through crosscontamination)5. Avoid contact with Optical Solar Reflector Tiles on Z1 heat piperadiators at the DDCU-HP and RPDAs. These items can bedamaged by kick loadsCMG Inhibits:MCC-H1. Verify EA Power Removal and InhibitS0:EPS:RPCM S01A D: RPC 17RPCM S01A D RPC 17√RPC Position – Op√Close Cmd – Inh2. Verify THA Power Removal and InhibitZ1:EPS:RPCM Z13B B: RPC 10RPCM Z13B B RPC 10√RPC Position – Op√Close Cmd – InhFoot Restraints:Task WIF APFR SettingALL SSRMS 12, PP, F, 4FS 7-16EVA/114/FIN A