This tip from Leonid Nemirovsky outlines how to view single 3D objects in a complicated drawing.

Sometimes in 3D assembly, a complicated object is created from different parts (solids or surfaces). It may be desirable to view separate parts from different perspectives without affecting the rest of the model. In this case, just highlight a desirable part with grips and use Orbit to view just that selected piece.

Notes from Cadalyst Tip Patrol: This is a simple tip, but one that is very useful. Not only can you single out an object, but you can select more than one part with this tip. Instead of picking one object, pick two and run it the same way. Thanks, Leonid.