Impeller Trays; Warnings And Notes - Alcatel 7750 SR-12 Installation Manual

I T
MPELLER RAYS
W
ARNINGS AND
Warning:
• Always keep your fingers away from rotating blades.
• Verify that the fan blades have stopped rotating before removing the impeller trays.
Notes:
• Impeller trays are hot-swappable. The 7750 SR-12 chassis will operate safely while you remove
and replace the trays for up to approximately 5 minutes at an ambient temperature of 95° F (35°
C).
• Immediately replace the tray as soon as a failure is detected.
• In the event of a single impeller failure, the entire tray must be replaced.
• To remove and replace impeller trays you must have access to the rear of the chassis. You must
have enough room, at least 20-inches, to pull the tray completely out of the slot.
7750 SR-12
N
OTES
Appendix B: Field Replaceable Units
Page 145