ARMY TM 9-6115-464-12
AIR FORCE TO 35C2-3-445-1
NAVY NAVFAC P-8-624-12
5-5 PREVENTIVE MAINTENANCE CHECKS AND SERVICES.
a. General. To insure that the fuel burning winterization kit is ready for operation at all times, it must be systemati-
tally inspected in order that defects be discovered and corrected before serious damage or failure of the equip-
ment results. Defects discovered during operation shall be noted for correction as soon as operation ceases.
Operation shall be ceased immediately if a defect which may cause damage to the equipment is noted. All de-
fects and shortcomings shall be recorded, together with the corrective action taken on the applied forms at
the earliest opportunity. Army and Navy users shall accomplish the necessary preventive maintenance services
listed and described in subparagraph b. below. Air Force users shall refer to the applicable inspection manual
and work card sets in the T.O. 35C2-3 Series for periodic requirements and Table 5-1, Table 5-2 for detailed
b. Preventive Maintenance Checks and Services (Army and Navy).
Operator, Table 5-1 contains a tabulated listing of preventive maintenance checks and services which
shall be performed before, during, and after operation and the weekly check and services to be performed
by the operator. The item numbers are listed consecutively and indicate the sequence of minimum require-
ments. Refer to Table 5-1 for checks and services.
Unit Maintenance. Table 5-2 also contains a tabulated listing of preventive maintenance checks and ser-
vices which shall be performed by unit maintenance personnel at monthly and semi-annual intervals. The
item numbers are listed consecutively and indicate the sequence of minimum requirements. Refer to
Table 5-2 for checks and services.
TROUBLESHOOTING. Table 5-3 and Table 5-4 contains a list of malfunctions which is useful in diagnosing
and correcting unsatisfactory operation or failure of the fuel burning winterization kit. Each malfunction is followed by
an alphabetical listing of probable causes of the malfunction. The corresponding indented listing of corrective actions
contains references to applicable maintenance paragraphs for correcting the malfunction. The tables list only those
malfunctions, tests, or malfunctions and corrective actions which are within the scope of unit and operator mainte-
nance. Any malfunction whose corrective action is beyond the scope of unit and operator maintenance shall be re-
ported to higher level maintenance.
5-7 OPERATOR INSPECTION AND SERVICE OF FUEL BURNING WINTERIZATION KIT.
Visually inspect heater assembly (4, Figure 5-1) for insecure mounting, dents, cracks, corrosion, and oth-
Inspect fuel lines for cracks, breaks, loose connections and support clamps and other damage.
Inspect electrical wiring for loose terminals or connectors, burned or frayed insulation, loose support
damps and other damage.
Check coolant lines for loose connections, leaks, deterioration, and other damage.
Loosen fasteners and remove protective rover (1, Figure 5-2).
Disconnect burner fuel line (2) and remove metering orifice assembly (3).
Remove filter body (4) with gasket (5) and sintered filter (6) from heater assembly (7).
Unscrew sintered filter (6) from filter body (4). Discard gasket (5).
Clean metering orifice assembly, screen, and sintered fitter in an approved solvent and dry with filtered
Hold orifice up to a light and check to make sure its pin hole is unobstructed.
Screw sintered filter (6) into filter body (4) and install with new gasket (5) into heater assembly.