FIELD (UNIT) MAINTENANCE
LARGE CAPACITY FIELD HEATER
CARBON MONOXIDE DETECTOR CABINET
INSPECT, TEST, REPLACE
Tool Kit, General Mechanics (Item 2, WP 0092
MOS 52C or MOS 63J
Main battery switch in the OFF position and
The cabinet mounted carbon monoxide detector must be replaced every 5 years
regardless of the results of inspection or test. Refer to the section of this work package
entitled REPLACE for complete details on replacement.
1. Remove the eight hex head bolts (1) and washers (2) securing the fan compartment cover (3) to the
LCFH cabinet (4).
2. Remove the fan compartment cover (3) to expose the carbon monoxide detector (5).
3. Inspect the carbon monoxide detector (5) enclosure for cracks, punctures, or any other damage that
would prevent the detector from operating properly. If damaged, replace the detector as detailed in
the section of this work package entitled REPLACE.