13-6
OPERATOR MAINTENANCEUSER HANDBOOK
CHEMICAL FILTER
OR
SILICA GEL
(Part No. 67205)
NOx ABSORBER
(Part No. 67270)
PROBE WASHER
(Part No. 12379)
HYDROPHOBIC FILTER BULB
PROBE TUBE
(FLEXIBLE PROBE ASSEMBLY)
PROBE ADAPTOR
DUST FILTER HOLDER
DUST FILTER WASHER
(Part No. 67189)
DUST FILTER
(Part No. 67163 - Box of 30)
Fig. 13.3 Filter Removal
3) Hold the hydrophobic lter bulb then unscrew the chemical
lter assembly in a counter clockwise direction to remove
the lter from the hydrophobic lter bulb, as illustrated in Fig.
13.3.
4) If the silica gel / absorber is to be replaced, make sure that
the lter assembly is positioned in the upright position as
shown in Fig.13.4 then unscrew the lter housing adaptor
in a counter clockwise direction to remove.
5) The lter housing can now be inverted and the silica gel /
NOx absorber discarded.
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