Fans/Mid Web; Fans; Mid-Web And Fan Assemblies - Agilent Technologies PSA Series Service Manual

Assembly Replacement Procedures

Fans/Mid Web

Fans/Mid Web
The fans are attached to a part of the instrument known as the mid
NOTE
web. It is possible to remove a fan without removing the mid web from
the instrument. The 3 fans in the instrument can be replaced
individually. It will be necessary to remove other assemblies located
near the fan to be replaced.
Use ESD precautions when performing this replacement procedure.
CAUTION

Fans

Fan Removal
1. Remove the instrument top brace. Refer to the
2. Drop the front frame. Refer to the
3. Remove any assemblies necessary to access the rear of the midweb
4. Unplug the appropriate fan cable from the motherboard.
5. Refer to
6. Once the rivets are removed, the fan can be lifted from the mid web.
7. Remove the fan guard if available.
374
procedure.
procedure.
where the defective fan is located. You will need to access the rivets
as shown in Figure 11-43. Refer to the removal procedures for the
power supply, the vertical board assemblies, or the RF section as
needed.
Figure 11-43. To remove a fan, it is necessary to remove the
4 plastic rivets (1) that attach it to the mid-web (2). To do this use a
small tool such as a punch or screwdriver to push the rivet out.
"Top Brace"
"Drop the Front Frame"
removal
Chapter 11