Procedure - Igniter Replacement - Siemens Maxum II Service Manual

Flame Ionization Detector
4.4 Replacing the FID Igniter
15.Disconnect utility gas lines from the FID at the connecting union using a 5/16" open-end
wrench. Temporarily label the gas line leads to make sure they can be reconnected
correctly.
Figure 4-9
16.Remove the four M4 nuts from the FID EC cover plate using a 7mm nut driver.
17.Using a 2.5mm Allen wrench, remove the four M4 screws that secure the FID mounting
plate to the mezzanine.
18.Remove the FID assembly from the mezzanine by pulling up and then out when the FID
bottom body clears the hole.
4.4.3

Procedure - Igniter Replacement

Note
A clean work surface should be used for disassembly of the old igniter and installation of the
new igniter. This is to prevent contamination of the detector gas inputs and electrical contacts.
42
A
Disconnect
FID vent tube
B
Cover setscrew hole
Removing the FID Assembly (Typical Installation)
Disconnect
C
utility gas at
unions on the ends
of supply lines (up to 3)
D
EC cover plate
nuts (4)
E
FID mounting plate screws (4)
Service Manual, May 2018, A5E42019847001
Maxum Edition II Detectors