Figure 7-4. Replacing The Fan - Thermo Scientific 5028i Instruction Manual

Keps Nuts (4)
Detector Amplifier
Assembly
Replacement
Thermo Fisher Scientific
1. Turn the instrument OFF, unplug the power cord, and remove the
cover.
2. Remove the fan guard and filter from the fan by unsnapping it.
3. If the fan is not being replaced, install the new filter, and snap it
back into place, and skip the remaining steps.
4. Disconnect the fan power cable from the fan. Do not lose the four
nuts.
5. Remove the four fan mounting screws and remove the fan.
6. Install a new fan following the previous steps in reverse.
Figure 7–4. Replacing the Fan
Use the following procedure to replace the detector/preamplifier
assembly (Figure 7–5).
Equipment Required:
Detector amplifier assembly
Philips screwdriver
Adjustable wrench
Equipment Damage Some internal components can be damaged by
small amounts of static electricity. A properly grounded antistatic wrist
strap must be worn while handling any internal component.
1. Turn the instrument OFF, unplug the power cord, and remove the
cover.
2. Disconnect the cable from the detector amplifier assembly connector
on the measurement interface board and disconnect the SHV
connector from the detector amplifier.
Detector Amplifier Assembly Replacement
Mounting Screws (4)
Filter
Fan Guard
Model 5028i Instruction Manual
Servicing
s
7-11