Roland VersaCamm SP-540V Service Notes page 58

9 Unhook the CAP FRAME with holding it by the other
hand, and remove it.
Make sure to hold the CAP FRAME. There is
a SPRING under the CAP TOP. The CAP
TOP will jump out unless you hold the cap
frame when removing it.
10 Remove the CAP TOP together with the tube.
11 Fix the new CAP TOP. Make sure to fix it so that the
tube side faces the front.
Make sure not to touch the sponge.
Make sure the SPRING is properly fixed
under the CAP TOP.
12 Fix the CAP FRAME.
CAP FRAME
CAP TOP
CAP TOP
CAP FRAME
3-13