Cisco SE-CL-L3 Installation Manual page 48

Replacing a CPU and Heatsink
Figure 21: Separating the CPU Assembly From the Heatsink
1 CPU carrier
2 CPU
3 TIM BREAKER slot in CPU carrier
b) Pinch inward on the CPU-carrier inner-latch that is nearest the TIM breaker slot and then push up to disengage the
clip from its slot in the heatsink corner.
c) Insert the blade of a #1 flat-head screwdriver into the slot marked TIM BREAKER.
Caution In the following step, do not pry on the CPU surface. Use gentle rotation to lift on the plastic surface of the
CPU carrier at the TIM breaker slot. Use caution to avoid damaging the heatsink surface.
d) Gently rotate the screwdriver to lift up on the CPU until the TIM on the heatsink separates from the CPU.
Note Do not allow the screwdriver tip to touch or damage the green CPU substrate.
e) Pinch the CPU-carrier inner-latch at the corner opposite the TIM breaker and push up to disengage the clip from its
slot in the heatsink corner.
f) On the remaining two corners of the CPU carrier, gently pry outward on the outer-latches and then lift the
CPU-assembly from the heatsink.
Note Handle the CPU-assembly by the plastic carrier only. Do not touch the CPU surface. Do not separate the
CPU from the carrier.
Cisco Application Services Engine Hardware Installation Guide
42
4 CPU-carrier inner-latch nearest to the TIM
breaker slot
5 #1 flat-head screwdriver inserted into TIM
breaker slot
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Maintaining the Server