Canon 400D Digital Camera User Manual


 
(Fig. 7) (Fig. 8)
(Fig. 9)
Replace the lid (Fig. 8). Remember to ensure the pressure release plug is pulled all the way out while
closing, otherwise the air cannot escape. Squeeze the lid closed all the way with the hissing of expelled air.
Screw home (CLOCKWISE) the pressure release plug (Fig. 9). There is no need to excessively tighten
this plug. The seal is made by internal O-rings. The O-ring on the underside of the plug is just to keep out
dirt.