H3C Technologies H3C MSR 20-2X[40] - Manual (Page 65)

58
Hardware Maintenance
Preparing Tools
• Phillips screwdriver
• Straight screwdriver
• ESD-preventive twist strap
• Static shielding bag
NOTE:
The tools are not available with the MSR 20. You must prepare one yourself.
Opening/Closing Chassis Cover
Step1 Power off the router and remove the power cord.
Step2 Remove all cables of interface modules on the back panel (keep the ground cable connected).
Step3 Put the router on level ground and have the back panel face you. Loosen the captive screws fastening the
back panel with Phillips screwdriver.
Step4 Put two straight screwdrivers into the holes on the two sides of the chassis and turn them until the tab on
the front edge is separated from the front panel.
Step5 Drag the chassis levelly a little towards your body and lift it, and then you can remove the cover and put
it away.
Figure 38 Remove/install captive screws of MSR 20-20/20-21