Access Cover Replacement; Releasing The Cover - NEC SP B-Series Service And Reference Manual

4. Loosen the thumb screw at the rear of the system by turning it
counterclockwise. If you installed a lock on the back of the system, unlock
the lock and remove it.
Press the right release tab. While pressing the tab, push down and back on
the right rear of the cover. The cover slides back about a half inch.
Press the left release tab. While pressing the tab, push down and back on the
left rear of the cover. The cover slides back about a half inch.
5. Lift the access cover off the system.

Access Cover Replacement

To replace the access cover, use the following procedure.
1. Gently set the access cover inside the edge of the case, taking care not to
bend the metal tabs.
2. Align the tabs on the access cover with their corresponding slots on the
system.
Insert the tabs on the edge of the access cover into their slots on the system.
3-4 Option Installation

Releasing the Cover

A – Release Tab B – Thumb Screw