Maya 2012 Tutorial
How to Remove a Keyframe in Maya
Once you have added a keyframe you may want to remove it. The keyframe may appear on the Timeline as a red tick or be connected to an object parameter (i.e., shader color).
Add a cylinder to the stage by choosing Create > Polygon Primitives > Cylinder.
Right-click the cylinder and choose Assign New Material, Blinn.
With the object selected, click frame one of the Timeline and open the Blinn material panel in the Attribute Editor.
Right-click the word Color and choose Set Key.
Notice that a key has been added, yet no red tick mark was added to the Timeline. Press the s key to add a keyframe for Translate, Rotate, Scale and Visibility.
Click frame 24 of the Timeline, move the object 10 units in the x direction and press the s key to set another keyframe.
Click the color rectangle in the Blinn shader panel to change the object color.
Right-click the word Color and choose Set Key to add a key for the color.
Click the Controller Play button to view your animation. The object should move and change color.
To remove the color key, right click the word Color and choose Break Connection.
To remove the keyframe on the Timeline, left-click frame 24, then right-click the tick mark at frame 24 and choose Delete.