TM 1-4920-448-13&Pc.InstallingECUsupportFrames1. Remove eight floor plugs (1) from inserts attransport location of ECUs (2). Store plugs in storagechest.2. Loosen and remove cargo straps (3).3. Remove four ring bolts (4) securing eachframe (5) to wall. Remove frames.2-244. Position ECU frames (5) over floor inserts and al.ine holes.5. Install four ring bolts (4) in each and securelytighten.