ARMY TM 9-6115-464-12
AIR FORCE TO 35C2-3-445-11
NAVY NAVFAC P-8-624-12
5-11 PREVENTIVE MAINTENANCE CHECKS AND SERVICES.
a. General. To insure that the electric winterization kit is ready for operation at all times, it must be systemati-
cally inspected in order that defects be discovered and corrected before serious damage or failure of the
equipment results. Defects discovered during operation shall be noted for correction to be made as soon
as operation ceases. Operation shall be ceased immediately if a defect which may cause damage to the
equipment is noted. All defects and shortcomings shall be recorded together with the corrective action
taken on the applicable forms at the earliest opportunity. Army and Navy users shall accomplish the pre-
ventive maintenance checks and services listed and described in subparagraph b. below. Air Force users
shall refer to the applicable inspection manuals and work card sets in the T.O. 35C2-3 Series for periodic
requirements and Table 5-5, Table 5-6 for detailed procedures.
b. Preventive Maintenance Checks and Services (Army and Navy).
(1) Operator. Table 5-5 contains a tabulated listing of preventive maintenance checks and services
which shall be performed before, during and after operation and the weekly checks and services to
be performed by the operator. The item numbers are listed consecutively and indicate the sequence
of minimum requirements. Refer to Table 5-5 for checks and services.
(2) Unit Maintenance. Table 5-6 also contains a tabulated listing of preventive maintenance checks and
services which shall be performed by unit maintenance personnel at monthly and semi-annual inter-
vals. The item numbers are listed consecutively and indicate the sequence of minimum require-
ments. Refer to Table 5-6 for checks and services.
5-12 TROUBLESHOOTING. Table 5-7 and Table 5-8 contains lists of malfunctions which are useful in diagnos-
ing and correcting unsatisfactory operation or failure of the electric wintenzation kit. Each malfunction is followed
by an indented listing of tests or inspections for the malfunction. The corresponding listing of corrective actions con-
tains references to the applicable maintenance paragraphs for correcting the malfunction. The tables list only those
malfunctions, tests or inspections and corrective actions which are within the scope of unit or operator maintenance.
Any malfunction whose causes and corrective actions are beyond the scope of operator or unit maintenance shall
be reported to higher level maintenance.
5-13 OPERATOR'S MAINTENANCE OF ELECTRIC WINTERIZATION KIT.
a. Coolant Pump Assembly.
(1) Inspect pump (18, Figure 5-5) for cracks, breaks, corrosion and leaks.
(2) Check pump for discoloration or other signs of overheating.
b. Coolant Hoses and Fittings.
(1) Inspect coolant hoses (46, Figure 5-5) for damage and deterioration.
(2) Check fittings and valves for loose connections and leaks.
c. Wiring Harnesses. Check wiring harness (61, 66, Figure 5-5) for frayed, burned, or deteriorated insula-
tion, insecure support damps, and loose connections.
d. Indicator Lights.
(1) Inspection. Inspect indicator lights (Figure 5-6) for cracked or broken lens, corrosion, and other
damage.
(2) Testing.
(a) Close circuit breaker (Figure 5-6) to apply power to control assembly.
(b) Depress indicator light lens. If lamp is operating, it will illuminate.
(c) Open circuit breaker.
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