Canon 580EXII Service Manual page 49

<Disassembly and Reassembly Notes>
1. Flash Head Cover (Lower) removal
① Peel off the Body Number Label.
② Detach the Flash Head Cover (Lower). (Screws x 6)
NOTE 
：Flash Head Cover (Lower) removal
・ Looking at the Flash Head from the front and releasing the hook on the right side
makes working with the unit easier. (Fig. 022)
・ Do not lose the silicon washers located inside the two screw holes on the bottom side
of the Flash Head Cover (Lower). (Fig. 023)
Fig. 022 Right Side of the Flash Head
Cover
NOTE 
：Attaching the Flash Head Cover (Lower)
・ After attaching the Flash Head Cover, always check to make sure that the rib is in the
correct position. (Fig. 024, Fig. 025)
Fig. 024 Correct Rib Position
Hook
No Gap
4
Repair Information
Fig. 023 Silicon Washers
Gap
Fig. 025 Incorrect Rib Position