TM 9-4520-260-13
Table 2-3. Operator Preventive Maintenance Checks and Services for Heater Model UH48-E - Continued
Location
Item
Interval
Item to
Procedure
Not Fully Mission
No.
Check/
Capable if:
Service
3
Before
Air Inlet/Outlet
Check that air inlet/outlet is free of
There are obstructions.
obstructions.
Remove obstructions.
There are obstructions.
4
Before
Check that exhaust outlet is free of
Remove obstructions.
Outlet
obstructions, no combustible
materials have been placed in
contact with piping, and all con-
nections are tight and leak free.
5
During
External Fuel Lines
Check for kinks, leakage, or
Fuel lines inside the heater or
damage.
Heater can be
the area being heated leak
operated with Class I or Class II
or are damaged. Notify Unit
leaks, if:
Maintenance for correction.
Leaks occur in fuel supply lines
external to the heater and the
area or compartment being
heated.
And, such leakage does not
present a fire or health hazard.
Class III leaks shall be reported
immediately to your supervisor.
2-7