Siemens Maxum II Service Manual page 41

12.Remove the ¼ " vent tube from the top of the FID block using a 9/16" open-ended wrench.
Vent Tube
Figure 4-7
13.Using a 3.0mm Allen wrench, remove the FID cover set screw from the front of the FID
Assembly.
(remains on FID)
Setscrew for FID
bottom body
Figure 4-8
14.Remove the cover from the FID block by pulling up and out, and then remove the insulation
from the FID block.
Maxum Edition II Detectors
Service Manual, May 2018, A5E42019847001
FID Vent Tube Location on FID Assy
Purge tube screws (4)
(reuse)
FID
body
B
FID
bottom
body
Thermal gasket
A
Cover
setscrew
FID FID Parts (with Old Igniter)
Cable tie
(cut and discard)
FID purge tube
(discard)
Pipe gasket (discard)
Heater purge tube
(discard)
D
FID mounting plate
Heater assembly
(discard)
Heater assembly screws (4)
(reuse)
Flame Ionization Detector
4.4 Replacing the FID Igniter
Igniter assembly
(discard)
C
EC cover plate
(discard)
41