To Remove And Replace The Fan - Agilent Technologies 54845B Manual

Chapter 6: Replacing Assemblies

To remove and replace the fan

To remove and replace the fan

WAR N IN G AVOID INJURY!
The fan blades are exposed both inside and outside the chassis. Disconnect the power cable
before working around the fan. Use extreme caution in working with the instrument. Failure to
observe these precautions may result in injury.
Use this procedure to remove and replace the fans. When necessary, refer to other removal
procedures.
Disconnect the power cable and remove the cover.
1
Disconnect the fan cable from the fan control board.
2
Remove the fan bracket securing the fan to the chassis.
3
The ATX Service Kit (Agilent Technologies P/N 54845-68803) has instructions and a
4
tool to assist with fan bracket removal.
Figure 6-31
Removing Fan Fasteners
CA UT IO N
AVOID OVERHEATING THE INSTRUMENT!
When replacing the fan, be sure the direction of the fan air flow is coming from the inside to the
outside of the instrument. Check the flow arrows on the fan and check for proper flow once
power is applied to the instrument. Improper air flow can overheat the instrument.
To install the fan, reverse this procedure.
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