ad55cbdc_Dissection__Gate_2___GICL_Wiki_Table_2__Dissection_Process_Parts
[Step #] 7 [Procedure] Begin by removing one screw from the grey casing of the gearbox. The cylindrical component should the become separated from the fax mechanism, with the wires still attached. To fully detach the piece, grip the wires and pull apart. This will have to be executed twice as it is wire-connected on both sides. The rest of the grey casing can be detached by removing a total of three screws and pulling the casing off. The gear train should now be fully visible and accessible as shown in the corresponding image. This part is intended to be disassembled as it houses a set of gears which may need repair. See Video [Tools] Hands Screwdriver [Difficulty] 2 [Parts] 
Fax Mechanism
Product Dissection: Gate 2 - GICL Wiki