The location of the FID switchFigure 4-9:
3. Remove the explosion proof dome and the thermal hood.
4. Remove the screw connecting the termination board to the FID cap.
5. Remove the two screws from the mounting bracket.
6. Unscrew and remove the vent connector.
Note
Use a backing wrench on the bolt fronting the FID cap when removing the vent connector.
To replace the FID, reverse the steps taken to remove the device. The final step should be
to flip the FID switch to the "ON" position.
4.4.9 LSIV maintenance
The following procedures detail how to remove and install an LSIV, as well as how to
replace an LSIV’s seals.
Installing a MAT LSIV
The LSIV can be maintained while attached to the enclosure. However, the user may find it
easier to perform maintenance with the LSIV removed from the upper enclosure.
CAUTION!
This unit operates at high temperature. Allow a cool-down period of at least 10 minutes after
shut-down and handle the unit carefully. Failure to follow this precaution may result in injury
or death to personnel.
Operation and maintenance
4
Operation and maintenance
97