OPERATOR'S PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) INTRODUCTION
This work package contains Operator's PMCS requirements for the HET Tractor A/C system. The PMCS table in this
work package contain checks and services necessary to ensure that the truck is ready for operation. Using PMCS tables, per-
form maintenance at specified intervals. Perform PMCS listed in TM 9-2320-360-10, before performing these PMCS checks.
GENERAL MAINTENANCE PROCEDURES
WAR N I N G
Solvent cleaning compound MIL-PRF-680 Type II and III may be irritating to the eyes and skin. Use protec-
tive gloves and goggles. Use in well-ventilated areas. Use respirator as needed. Accidental ingestion can
cause irritation of digestive tract and respiratory tract, may cause lung and central nervous system damage.
Can be fatal if swallowed. Inhalation of high/massive concentrations can cause coma or be fatal. First aid for
ingestion: do not induce vomiting. Seek immediate medical attention. First aid for skin contact: remove con-
taminated clothing. Wash skin thoroughly with soap and water. If symptoms persist, seek medical attention.
First at for eye contact: flush with water for 15 minutes or until irritation subsides. If symptoms persist, seek
medical attention. First aid for inhalation: move to fresh air. If not breathing, provide artificial respiration. If
symptoms persist, seek medical attention. Keep away from open flames and other sources of ignition. Fail-
ure to follow this warning may result in injury or death to personnel.
· The flashpoint for type II solvent cleaning compound is 141-198°F (61-92°C) and type III is 200-241°F (93-
· Improper cleaning methods and use of unauthorized cleaning solvents may injure personnel and damage equip-
· Fire extinguishers should be placed nearby when using solvent cleaning compound. Failure to follow this
warning may result in injury or death to personnel.
· Cloths or rags saturated with solvent cleaning compound must be disposed of IAW authorized facilities' proce-
dures. Failure to follow this warning may result in injury to personnel.
· Eye shields must be worn when cleaning with a wire brush. Flying rust and metal particle may cause injury to
Cleanliness. Dirt, grease, oil, and debris may cause or cover a serious problem. Clean all metal surfaces.
Bolts, nuts, and screws. Check bolts, nuts, and screws for obvious looseness, missing, bent, or broken condition.
Look for chipped paint, bare metal, or rust around boltheads. If any part seems loose, tighten it, or have the part
repaired or replaced.
Welds. Look for loose or chipped paint, rust, or gaps on welds. If a bad weld is found, notify Unit Maintenance.
Electrical wires and connectors. Look for cracked or broken insulation, bare wires, and loose or broken connec-
tors. Tighten loose connectors and make sure wires are in good shape. If a wire or connector is bad, notify Unit
A/C system leaks. Look for A/C lubrication leakage and corrosion, and damage to fittings, hoses, and other com-
ponents. Inspect lowest points of fittings, and hoses for indication of lubrication leakage. If lubrication leakage is
found, notify Unit Maintenance.
N OT E
Always observe the warnings and cautions appearing in your PMCS table. Warnings and cautions appear
before applicable procedures. You must observe these warnings and cautions to prevent serious injury to
yourself and others or prevent equipment from being damaged.
EXPLANATION OF TABLE ENTRIES
"Item No." Column. Items in this column are for reference. When completing DA Form 2404 (Equipment Inspec-
tion and Maintenance Worksheet), include the item number for the check/service indicating a fault. Item numbers
also appear in the order that you must do the checks and services for the intervals listed.