Juniper EX8208 Hardware Manual page 160

CAUTION:
approximately 89 lb (41 kg). Lifting the chassis and mounting it in a rack or cabinet
requires at least three people.
The chassis has two handles. Do not lift a fully loaded chassis by the handles; make
sure the chassis is empty (contains only the backplane) before you lift it. If two of the
people lifting the chassis use the handles to lift it, the third person must lift from the
rear of the chassis. The rear of the chassis is heavier than the front of the chassis, so
when you lift the chassis by the handles, the chassis tips toward the heavier back end.
The person lifting from the back must be aware of this behavior and must be braced
to prevent the chassis from tipping over.
When lifting the chassis, do not grasp the switch by the blue panel at the top front of
the chassis. Doing so can cause the panel to pop off of the switch.
CAUTION:
verify that the rack is strong enough to support the switch's weight and is adequately
supported at the installation site.
Before you install the switch:
1. Prepare the site for installation as described in
page 108.
2. Ensure the site has adequate clearance for both airflow and hardware maintenance as described in
"Clearance Requirements for Airflow and Hardware Maintenance for an EX8208 Switch" on page
3. Unpack the switch as described in Unpacking an EX8200 Switch.
4. Remove all components except the backplane from the chassis. See:
Removing an SRE Module from an EX8208 Switch on page 253
Removing an SF Module from an EX8208 Switch on page 257
Removing a Line Card from an EX8200 Switch on page 268
Removing a Fan Tray from an EX8208 Switch on page 235
Removing an AC Power Supply from an EX8200 Switch on page 239
The chassis with only the backplane and no other components weighs
Before front-mounting the switch in a rack, have a qualified technician
"Site Preparation Checklist for an EX8200 Switch" on
160
116.