From these pictures i can say that this is a dead cam
Don't shoot it and don't try to repair it - it's useless.If Martin send you a new one you can change it. There's a good "how to" video in YouTube from LeArl or something like that -when you search for Martin bows you'll find it.(If you can't i'll give you a link) Good luck!
2008 Martin MOAB - 45-60#, set at about 51-53# / 55#" Perfect Line" compound/ 55# Mongol horsebow/ 45# "Perfect Line" takedown recurve/ 45# Bearpaw Grizzly hunter recurve/ 55# Samick Longbow Cheetah ... and several homemade bows