IBM TotalStorage SAN256N Director 2045-N16, Installation And Maintenance Manual, Page: 109 / 157

Chapter 5. Hardware maintenance procedures
89
3. Unlatch the fan assembly from the chassis frame by sliding the latch to the left of the
fan housing. While pressing on the latch, using the handle, pull the fan housing
towards you to disconnect from the midplane connector, and to clear the chassis
frame.
Figure 38. Side fan assembly removal
Installing a side fan assembly
1. Remove the new side fan assembly from its packaging, and align the new fan
assembly with the open slot in the chassis rear. Make sure that the fan housing is
oriented so that the fan I/O connector is located on the lower side of the fan housing,
otherwise, the fan assembly cannot connect with the chassis midplane connector.
2. While pressing the locking latch to the left, using the handle, slide the fan assembly
housing into the chassis, making sure that the fan assembly connector mates with
the corresponding midplane fan connector. The fan assembly will start operating
immediately and the Fan Status LED will be lit green.
3. Release the latch to lock the fan assembly into place in the chassis frame. Verify the
latch is locked to the frame by manually sliding the latch to the right.
Side fan assembly
Side fan I/O connector
1. Slide latch to LEFT
2. Pull housing forward to
to unlatch
remove from chassis
Attention: Refer to safety notices before starting an installation.
Attention: Do not turn AC power off to remove, replace, or install a fan
assembly. Fan replacement must not be delayed. Increased heating inside
the chassis will occur due to reduced system cooling whenever a fan
assembly is not present.