Lubricate the guide dampers and especially the moving parts to ease their movement. This could certainly aid in avoiding them from not fitting effectively and thus leading to them being very rigid to bend. Guide dampers are adjusted by hand and are usually Employed in older HVAC devices. They may https://air-control-dampers-for-h35566.theisblog.com/36895700/the-greatest-guide-to-air-control-dampers-for-engine-sheds