If your only going to change the fabric, and the tension on the existing fabric is ok. Then you only need to lock the roller in the correct position on both ends while you slide the fabric off the roller and down the track on the RV. There are plenty of youtube videos that will show you how to do it.
You don,t want to mess with springs if you don,t have to. They are under tension and can hurt you if you don,t know what your doing.
06 Hurricane 34FT WH W20 Chassis 8.1L 129K, 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