FLIR Fido X4 - Replacing the Detector Inlet

Step 2: Rotate the TD up to click the latches into place.
8.5 Replacing the Detector Inlet
The Fido X4 is equipped with a user-replaceable detector inlet (3.4.2 , p.17). The inlet should
only need to be replaced in the event of a serious clog or physical damage. A spare detector
inlet and additional O-rings are provided in the maintenance kit. The inlet can also be removed
for cleaning.
8.5.1 Removing the inlet
Step 1: Power OFF the Fido X4 and allow 15 minutes for surfaces to cool.
Step 2: Remove the sensing element (see 8.1.1).
Step 3: Using the wrench component of the multi-purpose inlet tool provided in the
maintenance kit, loosen the inlet by turning counterclockwise.

Figure 8-9: Inlet tool
Step 4: There are O-rings located inside of the inlet. Ensure they are accounted for
before proceeding.
Step 5: Place the inlet on a clean surface.
8.5.2 Installing the inlet
Step 1: Ensure the O-rings are installed inside of the inlet.
Step 2: Thread the inlet onto the system by-hand by turning clockwise.
Step 3: Use the inlet tool to tighten.
Step 4: Do not over-tighten. The inlet will come to a hard stop when seated correctly.
Step 5: Power on the system and re-install a sensing element.
4226044 (Rev. C) © 2020 FLIR Systems, Inc.
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FLIR Fido® X4 Operations Manual