Odd ... I searched for HC 130 and yeah, nothing came up this time.

I then searched for RADAR and there it was.  I went back and searched for HC 130 and it showed up.

So, try that then.. search for RADAR ... click the link and you'll get a list of more links ... click on the CD 2 01  and then scroll to the CD 2 01  section .. you'll find the Coast Guard C-130 Flight Manual as FILE 1.