Reassembling a Remington Speedmaster 552

[Tin_Man]

Hey guys. I've got a Remington Speedmaster 552 that needs reassembling. When I go to put the trigger group back it goes in fine. However, when I rack it the bolt doesn't stay open (not sure if it's supposed to). Then, the triggers pulls back just a tiny bit. No click or break in the pull. Any ideas?

 

[Sunray]

Go here for a manual. Has good pictures. http://stevespages.com/pdf/remington_552.pdf
"...not sure if it's supposed to..." Likely not.