Lubrication likely will not hurt
Springs on manual awnings are usually "To the rear" of the RV (the end with the license plate) And yes it is possible to tighten them, it is also possible it's broken. Job is tricky. but basically you unbolt a piece on the end and while facing forward (toward the end with the hitch or the headlights) you rotate the arm clockwise.. Then re-bolt it.. On mine the "Arm" is like 3 or 4 inches long (Mine is a power awning) and very hard, I use multiple tools
There is a pin hole I line up and pin the thing before I start, and before I re-bolt... I do not recommend you try this at home as there is a SERIOUS chance of injury if you do not know exactly what you are doing.