Item
No.
1
2
3
4
5
TM 5-4520-253-13
Table 2-2. Operator Preventive Maintenance Checks and Services-Continued
B—Before Operation
D—During Operation
A—After Operation
Interval
—
B
—
•
•
•
•
—
ITEM TO BE INSPECTED
PROCEDURE
Inspect the following fuel system components for leaks:
(1) Fuel inlet fitting
(2) Fuel overflow fitting
(3) Fuel lines
(4) Fuel connections
(5) Fuel overflow container
(6) Fuel supply container
(7) External fuel pump
Tighten any loose connections.
EXHAUST SYSTEM
Inspect entire exhaust system for leaks resulting from damage, cor-
rosion, and/or loose components. inspect through-the-wall installa-
tion for evidence of overheated, singed, or burned wood or other
flammable building materials. Tighten loose connection.
inspect exhaust system for fresh carbon buildup or other evidence of
exhaust leaks.
EXTERNAL ELECTRICAL CONNECTIONS
Check electrical plugs for tight seating in receptacles. Check ground
strap for secureness. Tighten loose connections.
HEATER CASE
Inspect adjustable louvers (1), fixed louvers (2), and screen (3) for
obstructions. Remove obstructions.
Equipment is
Not Ready/
Available if:
Leak greater
than Class I at
fitting and any
leak in fuel line
itself or fuel
container.
Exhaust line
punctured or
rusted through.
Building material
damaged by
heat.
Exhaust line
punctured or
rusted through.
Change 1
2-2.3
