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Loosen the four 13mm T10 Torx screws from the back of the drill and remove cap.
 
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Remove the two 25mm T10 Torx screws from the front of the drill.
 
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Remove the remaining 13mm T10 Torx screws and pull apart drill case.
 
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Using a PH1 screwdriver, remove the four 13mm PH screws from the back of the gearbox.
 
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                                    crwdns2935219:0crwdne2935219:0               
               To reassemble your device, follow these instructions in reverse order.
                                    crwdns2915888:0crwdne2915888:0               
               To reassemble your device, follow these instructions in reverse order.