Lenovo ThinkCentre A70 Hardware Maintenance Manual page 137

Figure 74. Removing the front fan assembly
9. Install the new front fan assembly by aligning the new rubber mounts that came with the new front fan
assembly with the corresponding holes in the chassis, and then push the rubber mounts through the
holes. Then, carefully pull on the tips of the rubber mounts from the bottom side until the new front fan
assembly is secured in place.
Note: The new front fan assembly will have four new rubber mounts attached.
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Chapter 9 Replacing FRUs (Machine Types: 0889, 5023, and 7844.)