How do I remove the old worn out drive coupling from the base to replace it , I cannot see any exposed fasteners that would allow me to open up the base.
[SIZE=3][COLOR=#000000][FONT=Times New Roman]Instruction Sheet for KitchenAid Blender Coupling Drive Installation[/FONT][/COLOR][/SIZE]
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[FONT=Times New Roman][COLOR=#000000][SIZE=3]1)[/SIZE] [/COLOR][SIZE=3][COLOR=#000000]Unplug Blender[/COLOR][/SIZE][/FONT]
[FONT=Times New Roman][COLOR=#000000][SIZE=3]2)[/SIZE] [/COLOR][SIZE=3][COLOR=#000000]With blender facing you, insert flat blade screwdriver (3/8 to 7/16 inch) between the black coupling drive and the blender housing.[/COLOR][/SIZE][/FONT]
[FONT=Times New Roman][COLOR=#000000][SIZE=3]3)[/SIZE] [/COLOR][SIZE=3][COLOR=#000000]Raise up on the screwdriver to turn the coupling drive clockwise (it is a left hand thread so the coupler keeps tight during use). Keep making ¼ turns until the coupling drive comes off. Do not worry about bending the old coupling drive. You are going to throw it away.[/COLOR][/SIZE][/FONT]
[FONT=Times New Roman][COLOR=#000000][SIZE=3]4)[/SIZE] [/COLOR][SIZE=3][COLOR=#000000]There is a flat spot on the blender shaft and construction of a flat tool is possible, but not necessary.[/COLOR][/SIZE][/FONT]
[FONT=Times New Roman][COLOR=#000000][SIZE=3]5)[/SIZE] [/COLOR][SIZE=3][COLOR=#000000]Check the threads on the blender shaft and clean the old metal shavings from the threads. Hand tighten the new coupling drive. It will be kept tight during normal use due to the left hand thread design and the clockwise spinning of the blades.[/COLOR][/SIZE][/FONT]
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We’ve combined all the helpful posts and the instructions file on how to replace a Kitchen Aid blender coupling in to one thread: http://forum.appliancepartspros.com/blender-repair/62084-how-replace-coupling-kitchenaid-blender.html