IBM 9080-M9S Manual page 354

Figure 299. Placing the system node in service position
7. Complete the following steps to remove the cover.
Attention: Operating the system without the service access cover on for more than 10 minutes
when the system power is turned on might damage the system components.
a. Push the release latch (A) in the direction shown in the following figure.
b. Slide the cover (B) off the system unit as shown in the following figure. When the service access
cover has cleared the upper frame ledge, lift the cover up and off the system unit.
348 Power Systems: Removing and replacing parts in the 9080-M9S system