Juniper MX240 Hardware Manual page 376

CAUTION:
prepared to accept the full weight—up to 18.35 lb (8.3 kg)—as you slide the
MX-SPC3 out of the chassis.
When the MX-SPC3 is out of the chassis, do not hold it by the ejector handles,
bus bars, or edge connectors. They cannot support its weight.
Do not stack MX-SPC3s on top of one another after removal. Place each one
individually in an electrostatic bag or on its own antistatic mat on a flat, stable
surface.
10. If you are not reinstalling an MX-SPC3 into the emptied line card slots within a short time, install a
blank panel over each slot to maintain proper airflow in the card cage.
CAUTION:
The weight of the MX-SPC3 is concentrated in the back end. Be
After removing an MX-SPC3 from the chassis:
Check the back panel connectors of the MX-SPC3 for damages. A damaged
connector on the MX-SPC3 card can damage the chassis back plane.
Wait for at least 30 seconds before reinserting the MX-SPC3 into the same
slot or inserting it into a different slot.
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