set_arguments not working properly

Hi, I'm trying to set the arguments I need for a particular view that I am printing on a page, but it is not working. This is how I call the view:

$view = views_get_view($name);

// Put all arguments and then execute.
$args = array('field_family_value=', 'field_manufacturer_nid[]=210');
$view->set_arguments($args);

And then I use $view->preview() to get the results.

The arguments are not working properly however...I've tried several different variations of they argument array, but no dice.
Any ideas?