TM 9-4520-258-14
Table 2-1. Operator Preventive Maintenance Checks And Services.
EXTERNAL
4
Before
Supply and
Inspect for missing covers. Inspect for
Return Air Port
cracks/holes/bent covers. Inspect for security of
Dust Covers,
chain. Ensure covers have been removed from
Combustion Air
all three locations.
5
Before
Supply and
Inspect for holes or tears in fabric. Inspect
Holes or tears in
Return Air Ducts
clamps for wear and sharp edges. Inspect for
fabric and
missing, broken or loose clamps. Tape minor
missing, loose or
holes or tears in fabric (Item 14, App E).
broken clamp.
Item
No.
Interval
Location
Item to
Check/Service
Procedure
Not Fully
Mission
Capable If:
2-9
