4. Remove the three screws, then remove the CRU cover.
CRU cover
PSW3 x 6
PSW3 x 6
CRU unit assembly
5. Remove the two screws, then remove the cover from the rear of the CRU DATAPORT carrier.
Rear
CRU DATAPORT carrier
PSW3 x 6
Cover
3-7 (E)
SRX-R515P