In this video from oorail.com we show you how to repair a Hornby APT-P (Advanced Passenger Train) Power Car. This video shows you how to completely dismantel the R.794 set's Power Car. How to take apart, clean and service the ringfield style motor. The video shows you how to reassemble the ringfield motor and APT power car. Finally the video shows the repaired APT running on our layout from several camera angles along side a Hornby HST. The same techniques shown in this video can be used to maintain other ringfield motors contained in Hornby diesel and tender driven steam locomotives.