The hydraulic pump usually drives off of the back of the injection pump. Follow the feed pipe ( larger diameter of the two hydraulic lines going to pump) back to the transmission housing and see if there is a banjo bolt going thru pipe to hold it to housing. If so, this banjo bolt should have a screen on it which will be your suction strainer to the pump. This is the case on my B2400. Warning!! Loosening the strainer without draining trans fluid WILL result in a large mess!! Been there, done it, bought the "T" shirt!! /forums/images/graemlins/grin.gif