First remove the shade and valence, unscrew the window frame from the inside. Then the window can be pushed outward while slipping a plastic blade between the outside window frame and sidewall to separate the putty sealant. Once the window is removed and on a table, the frame can be unbolted, separated, and the stationary window can be removed from the window track.
At least this is what I did to repair my window. My Window was made by Hehr.
06 Hurricane 34FT WH W20 Chassis 8.1L 120K, Steersafe, Koni Shocks, DIY Trac Bar, Tri-Metric 2025RV Battery Monitor, 4-6V Batteries, Scan Gauge 2, Crossfires, 735W Solar Morningstar MPPT-60, KVH R5 In-Motion Sat, XM Radio, 07 Chevy Malibu Maxx Toad, Falcon 2, Brake Buddy, Escapee