FIELD (UNIT) MAINTENANCE
LARGE CAPACITY FIELD HEATER (LCFH)
Tool Kit, General Mechanics (Item 2, WP 0092
MOS 63J or 52C
Heater shut down and cool.
Main battery switch OFF and handle removed.
Inspect the safety screens (1 and 2) at the inlet (3) and outlet (4) duct housings and ensure that they are
present and are not damaged in such a way as to make it possible to get a hand or other limb into the
inlet or outlet duct during operation.
The inlet and outlet duct safety screens are identical. The replacement procedure for both
is the same.
1. Remove the four nuts (5) and lock washers (6) that secure the screen (1) to the duct housing (7).
2. Remove the defective safety screen (1).
3. Install a new safety screen (1) by aligning the holes in the screen with the holes on the duct housing
4. Install four nuts (5) and lock washers (6). Tighten securely.