NEC EXPRESS5800/120Re-2 Service Manual page 49

8. The Arm Stopper Assembly keeps the cable arm from binding as the server
is pulled out of or pushed into the rack. Attach the Arm Stopper Assembly to
the left rear vertical rail (viewed from the rear of the cabinet) using one
Screw B and one rail bracket screw.
Figure 2-19. Installing the Arm Stopper Assembly
9. When installing or removing cables, loosen the fixed screw and separate the
two pieces of the Arm Stopper Assembly for easy access to the cable arm
assembly. See Figure 2-20.
Figure 2-20. Separating the Arm Stopper Assembly
Arm Stopper Assembly
Rail bracket screw
(upper screw hole).
Screw B
Fixed screw
Arm stopper
Setting Up the System 2-19