Career firefighters at one of the country's busiest stations say they're clocking hundreds of hours in emergency overtime while struggling with faulty equipment, long hours, and a lack of trauma training.  The Professional Firefighters Union has given notice of one-hour national stoppages at the end of month after failed negotiations with Fire and Emergency New Zealand.  FENZ says the proposed strike is disappointing after a new offer to increase firefighters' pay by 8 to 19 percent in the next two years.  The parties are back in talks today and tomorrow.  Reporter Rayssa Almeida went to Auckland's Central Fire Station to talk to firefighters.