Procedure
1. If the pre-heater (B, Figure 9-13) was removed, apply pipe thread sealant (Loctite
#567) to the external pipe threads of the pre-heater (B) and plug (D).
Do not apply sealant to the first turn of the pipe threads.
2. Clamp flats of sensor holder (E) in vise jaws with the pre-heater port pointing up.
3. Install and tighten the pre-heater (B). Align the pre-heater to the flat of the sensor
holder (E) as shown in Figure 9-14.
COe sensor and pre-heater alignmentFigure 9-14:
A. Sensor holder flat
B. Sensor holder
C. COe sensor flat
D. Pre-heater flat
E. Sensor holder flat
4. Invert the sensor holder (E, Figure 9-13) in a vise and pour stainless steel balls (C) into
plug port. Press down on stainless steel balls and tap sensor holder with plastic
hammer to compact balls in pre-heater chamber.
5. Install and tighten the plug.
CAUTION!
EQUIPMENT DAMAGE
Use care when installing the combustibles (COe) sensor. The RTD elements are fragile
and correct alignment in sensor holder is required for proper OCX operation.
Maintenance and service
234 OCX 8800
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