Table 2-1. Preventive Maintenance Checks and Services for Model M992A1
Not Fully Mission
a. Remove air inlet cover. With
MASTER switch turned to ON, turn
VFPS (NBC) power switch to ON.
Check motor for smooth operation.
Check air outlets for airflow. Inspect
filter assembly for dents, cracks,
secure mounting, and missing parts.
VFPS (NBC) POWER SWITCH
b. Check operation of NBC heaters.
Turn VFPS (NBC) power switch to
ON. Turn air heater ON and check
that green light illuminates (p. 2-202).
4 8 Weekly Lights
a. Check driving lights by turning on
driving lights switch (p. 2-195). De-
press high-beam switch to make sure
lights operate properly on high and
b. Check HI BEAM indicator light
and MASTER WARNING indicator