Emerson Rosemount OCX 8800 Reference Manual page 228

Maintenance and service
O.
Procedure
1.
2.
3.
4.
Remove O
Follow the steps below to remove the O
8800.
Refer to
Procedure
1.
2.
218
Heater strut assembly
Loosen screw (1) and slide locking clip (2) away from cover. Retighten screw (1).
With two hands or a strap wrench, turn the cover (3) counterclockwise to loosen.
Unthread and remove the cover.
Inspect the cover O-ring (4) for wear or damage. Replace the cover O-ring if
damaged.
Unsnap terminal marking plates (5) and remove terminal insulator (6).
cell and heater strut assembly
2
Figure 9-5.
Remove reference air tube (7) from sensor housing (8).
See Figure 9-6. Disconnect and tag O
thermocouple wires at the sensor housing terminals.
cell and heater strut assembly from the OCX
2
heater wires, O cell and return wires, and
2 2
OCX 8800