ad55cbdc_Dissection__Gate_2___GICL_Wiki_Table_2__Dissection_Process_Parts
[Step #] 12 [Procedure] Remove gears on bottom by sliding them off of shaft. These are intended to be removed for repair purposes. [Tools] Hands [Difficulty] 1 [Parts] 
Gear box
Product Dissection: Gate 2 - GICL Wiki