4.Replacement and Adjustment 
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4.  Push the cover release button [B], and open the front cover [A]. 
 
 
5.  Push the right hinge [A] to release it, and then remove the front cover [B]. 
 
Left Cover 
1.  Remove the front cover (Front Cover). 
2.  Remove the two screws on the front side of the left cover [A].