Are Manual Skylight Operators easy to install or replace?

Compatible with wood, metal or vinyl skylights, Truth's Manual Skylight Operators are easy to install, simple to use and can lift up to 140 lbs. with minimal effort. Strong plastic case liner keeps the chain and sprocket sliding smoothly, making windows easy to open. Hardened steel sprocket and chain provide years of noise-free operation. Straight Drive and Angle Drive are available along with various hand or pole crank options.

Truth’s special high gear reduction provides the low torque needed to lift a maximum sash weight of 140 pounds (63.6 kg.) with minimum effort. For ease of factory or field installations, the steel chain is detachable at the sash.The sprocket and chain are made from hardened steel to provide years of continuous, chatter-free operation. An acetal case liner keeps the chain and sprocket sliding smoothly, easing the force required to open the window.