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If my mind is thinking clearly this early, you should be able to rotate the hardware the front end of the coach CCW looking at the end of the tube with the latch in the open position. This will add tension to the spring. Both springs should have the same tension. You can find the proper turns of a new spring for the awning length on the manufacturers website. An older spring might needs an extra turn or 2. Let us know how you make out.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7