SRAM RSC Service Manual page 17

5 Use a T10 TORX® wrench to remove the reservoir cap bolt nearest to
the lever blade.
6
Carefully turn the lever body upside down so that the detent spring
and ball fall out of the lever body. If they do not initially fall out, gently
tap the lever against a clean rag.
7 Use a T10 TORX® wrench to remove the remaining reservoir cap bolt.
8 Remove the reservoir cover and bladder from the lever body.
T10 TORX wrench
T10 TORX wrench
Lever Blade Removal 17