Removing And Replacing The Fan Assembly; Removing The Fan Assembly - Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual

Chapter 5 Removal and Replacement Procedures
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If the LEDs indicate a power problem, see the

Removing and Replacing the Fan Assembly

This section describes how to remove and replace fan assemblies for the Cisco 7600 series router. A
flat-blade or number 2 Phillips-head screwdriver is required to perform this procedure.
The Cisco 7609 router and Cisco 7609-S router use redundant fan assemblies. The fan assemblies are
Note
installed one on top of the other.

Removing the Fan Assembly

The fan assembly is designed to be removed and replaced while the system is operating without
presenting an electrical hazard or damage to the system.
Perform these steps to remove the existing fan assembly:
Locate the fan assembly. (See
Step 1
router,
for the Cisco 7606-S router,
7609 router and the Cisco 7609-S router.)
Note
Loosen the two captive installation screws by turning them counterclockwise.
Step 2
Warning When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the
fan blades completely stop before you remove the fan tray.
OL-4503-26
OUTPUT FAIL LED is not lit
Figure 5-117
Figure 5-119 for the Cisco 7604 router,
Figure 5-122
On the Cisco 7609 router, the fan assembly is located behind the cable management system. You
must first loosen the two captive installation screws located at the top of the cable management
system and fold the cable guide down to access the fan assembly (see
Removing and Replacing the Fan Assembly
"Identifying Startup Problems" section on page
for the Cisco 7603 router,
Figure 5-120 for the Cisco 7606 router,
for the Cisco 7613 router, and
Cisco 7600 Series Router Installation Guide
Figure 5-118 for the Cisco 7603-S
Figure 5-121
Figure 5-124 for the Cisco
Figure 5-123).
4-2.
5-119