TD140 Hardware Maintenance Guide 7.13.2
39
4
TD140 Maintenance Guidelines
Rev. 001-140228
4.
Grip the handle and pull out the fan tray. Be sure to support the fan tray as it
comes out of the shelf.
5.
Remove the replacement fan tray from the shipping box and perform a thorough
inspection. Make sure all the connector pins on the fan tray are straight.
6.
Slide the fan tray into the empty slot until it is fully seated in the shelf. Turn the
locking screw to the locked position to secure the fan tray.
The fan tray is operational when:
The fan tray’s OK LED is solid green.
The fan tray’s red Alarm LED is off.
The fan tray’s blue Hot Swap LED is off.
7.
Use the shelf management software to verify the fan tray is available as a
resource and operating correctly.
R
EPLACING
A
PEM
If the PEM’s red Alarm LED is on, use the shelf management software to determine whether
the PEM needs to be replaced.
Do not use a grounding wrist strap while working with power cables because
this increases the risk of electrical shock.
Before making or breaking connections to the PEM, ensure the power feed
cabling is not powered.
Do not touch a power cable when power is supplied.
Do not place wires, screwdrivers, meter probes, oscilloscope probes, or other
electrically conducting material in contact with a live power cable or anything
connected to a live power cable.
Do not wear any watches, bracelets, and rings when working with a live power
cable or anything connected to a live power cable.
For maximum safety, be cautious and use tools with properly insulated handles.
Ignoring any of these precautions may cause personal injury or damage
electronic equipment. An electrical current of up to 75 VDC may be present at
any power connection.
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