64
C
HAPTER
6: H
ARDWARE
M
AINTENANCE
Figure 39
Turn the screwdriver in the hole on MSR 20-20/20-21
Figure 40
Remove/install captive screws of MSR 20-40
Figure 41
Turn the screwdriver on MSR 20-20/20-21
w
WARNING:
■
On a mounting screw of your router chassis, there is an anti-dismantle seal of
Hangzhou H3C Technologies Co., Ltd. You must keep it in good condition
when asking your sales agent for servicing. You can open the chassis yourself
but with permission of your sales agent and must operate following the related
rules. The company is not liable for any damage or consequence resulted from
users’ operation without permission.
■
Do not replace the hardware unless necessary and under the guidance of
technical staff.
■
Ensure that no electricity is present before servicing the device to avoid bodily
injuries.
■
Wear an ESD-preventive wrist strap when servicing the device, making sure it
has good skin-contact.
■
Use the memory bars provided by Hangzhou H3C Technologies Co., Ltd. only.
Otherwise, anomalies might occur to the device.
