This video details how to remove the Film Roll Slide spring assembly to change out the film roll springs.

The springs should be changed out when the force to hold the film roll against the pre-stretch roller is no longer strong enough to firmly hold the film roll against the roller. Typically, when the springs are depleted, the film roll starts to slip within the trailer, and you lose stretch and tension on the coil.

To replace the springs, start by removing the three 10-32 Button Head Screws. Disengage the spring rod assembly and remove the spent springs. Replace the spent springs with new springs. Replace the spring rod assembly with the new springs and tighten the three 10-32 button head screws. Complete this process on both the left and right side of the film trailer.