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
Faults appear. Notify Unit
6
During
Heater
Check for unusual noises,
Maintenance.
vibration, excessive Faults
appear. cycling, improper
combustion, or smoking
exhaust.
7
During
Heater
Check for unusual odors coming
The smell of fuel or smoke is
from the heater itself, especially
present. Notify Unit
the smell of fuel, smoke, or
Maintenance.-
exhaust
Cover panels and louver are
8
Quarterly
Housing Cover
Check exterior of heater housing,
not secure, or are damaged.
Panels and
cover panels, and louver for
Louver
proper installation and secured
fasteners. Check for warping or
dents.
Quarterly
Data Plates
Check data plates for illegibility
and loose fasteners.
9
SECTION III. OPERATION UNDER USUAL CONDITIONS
2-8. ASSEMBLY AND PREPARATION FOR USE .
Installation of the heater and its preparation for use are accomplished by unit maintenance personnel. See following
paragraph for initial adjustments, checks, and services.
2-9. INITIAL AD JUSTBMENTS, CHECKS, AND SERVICES.
Perform Before procedures required in Table 2-3.
2-10. OPERATING PROCEDURES.
Do not operate this heater in an enclosure unless exhaust fumes are piped outside the enclosure. The fumes contain
carbon monoxide, a colorless, odorless, deadly poisonous gas. Failure to provide proper elimination of exhaust fumes
will cause severe illness or death.
a. Preparation for Starting.
(1) Perform the preventive maintenance checks an(i services given in Table 2-3.
(2) Adjust the thermostat knob (1, Figure 2-3) to the desired setting.
2-8
