Always remove the stainless steel balls (approximately 200) from sensor holder before removing or installing pre-heater. Turning pre-heater in the sensor holder with the stainless steel balls in place will cause permanent damage to the pre-heater.
3.If pre-heater (7) is to be removed, clamp flats of sensor holder (4) in vise jaws with plug (8) pointing up. Remove plug. Unclamp sensor holder and pour stainless steel balls (9) into a container.
NOTE
Pre-heater should only be removed when pre-heater or sensor holder is damaged. If removal is not required, leave the pre-heater installed in the sensor holder.
4.Unthread and remove pre-heater (7).
5.Use a cleaning solvent to thoroughly clean stainless steel balls (9) and pre-heater chamber in sensor housing (4). Refer to applicable MSDS sheet for solvent handling precautions.
Assemble COe Sensor Assembly
Always remove the stainless steel balls (approximately 200) from sensor holder before removing or installing pre-heater. Turning pre-heater in the sensor holder with the stainless steel balls in place will cause permanent damage to the pre-heater.
1.If pre-heater (7, Figure 7-11) was removed, apply pipe thread sealant (Loctite #567) to the external pipe threads of pre-heater (7) and plug (8). Do not apply sealant to the first turn of the pipe threads.
2.Clamp flats of sensor holder (4) in vise jaws with pre-heater port pointing up.
3.Install and tighten pre-heater (7). Align pre-heater to flat of sensor holder (4) as shown in Figure 7-12.
4.Invert sensor holder (4, Figure 7-11) in vise and pour stainless steel balls (9) 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 plug (8).
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.
6.Lubricate and install COe sensor gasket (5). Apply anti-seize compound to threads of screws (1).
