Remove parts in 3D

Hello,

I am new user for Solidworks software.

I did an insulator model, by revolved the 2D drawing. I used linear pattern in order to copy the same shape , (big shed 18, and small shed 17).

How can I remove the last shed (small) , to get the right quantity for my model. I tried to explode but it didn't work for me

Many thanks

SolidworksParts And Features