little help for a new cub owner

Hi guys just picked up a 2011 SLTX 1050, well I pulled the deck off to clean and didn't notice a spring location before pulling the black belt guard at the pto clutch, its -part number 737-0814 , small diameter spring like 4-5 inches long. can anyone shed some light on where it goes?? I know I should have payed closer attention when removing guard, I didn't see spring till it was on the ground

thanks in advance Mike