
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.
59
FLIR Fido® X4 Operations Manual