TM 9-2320-360-10
2-4. USE OF PMCS TABLE (CONT)
f. Weekly Intervals. When a check/service procedure is required for both WEEKLY and BEFORE
intervals, you do not have to do the procedure twice if the HET Tractor is operated during the weekly
period.
g. Leakage Criteria. Leakage criteria is included in the Not Fully Mission Capable If: column.
2-5. GENERAL MAINTENANCE PROCEDURES
WARNING
Solvent can burn easily, can give off harmful vapors, and is harmful
to skin and clothing. To avoid injury or death, keep away from open
fire and use in well-ventilated area. If solvent gets on skin or
clothing, wash immediately with soap and water.
a. Cleanliness. Dirt, grease. oil, and debris only get in the way and may cover up a serious
problem. Use dry cleaning solvent (Item 14, Appendix D) on all metal surfaces.
b. Bolts, Nuts, and Screws. Check bolts, nuts, and screws for obvious looseness, and missing,
bent, or broken conditions. Look for chipped paint, bare metal, or rust around bolt heads. If any part
seems loose, tighten it or report it to unit maintenance.
CAUTION
The following conditions must be observed before welding on HET
Tractor
All battery cables disconnected (including arctic batteries if
installed).
DDEC electronic control module disconnected.
12-volt and 24-volt alternators disconnected.
CTIS controller and power manifold disconnected.
Failure to comply will result in damage to vehicle's electrical
system.
c. Welds. Look for loose or chipped paint, rust, or gaps where parts are welded together. If a bad
weld is found, report it to unit maintenance.
d. Electric Wires and Connectors. Look for cracked or broken insulation, bare wires, and loose or
broken connectors. Tighten loose connectors and ensure wires are in good shape. If a bad wire or
connector is found, report it to unit maintenance.
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