TM-9-2320-260-20
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
APRIL 1995
TM-9-2320-260-20 - Page 3 of 1337
TM 9-2320-260-20
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WARNING SUMMARY
(Contd)
Do not look into service chamber vent port when performing test. Injury to personnel may result.
Do not disconnect air lines before draining air reservoir. Small parts under pressure may shoot out with
high velocity, causing injury to personnel.
Do not look into limiting valve vent port when performing test. Injury to personnel may result.
Wear protective mask and work in well-ventilated area when removing glaze from brakeshoes. Asbestos
dust may form during glaze removal, causing harm to your health if inhaled.
Loosen supply line at valve very slowly. Stop procedure and tighten fitting of supply line the moment air
begins to escape. Injury to personnel may result if supply line is disconnected from valve.
Loosen delivery line at valve very slowly. Stop procedure and tighten fitting of delivery line the moment
air begins to escape. Injury to personnel may result if delivery line is disconnected from valve.
Do not look into parking brake valve vent port when performing test. Injury to personnel may result.
Battery acid (electrolyte) is extremely harmful. Always wear safety goggles and rubber gloves, and do
not smoke when performing battery maintenance. Severe injury will result if acid contacts eyes or skin.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or disconnected battery ground cable
contact battery terminal, a direct short can result, causing instant heating of tools, severe injury to
personnel, or damage to equipment.
When removing battery cables, disconnect ground cable first. Do not allow tools to come in contact with
vehicle when disconnecting cable clamps. A direct short can result, causing instant heating of tools, injury
to personnel, tool damage, battery damage, or battery explosion.
Some vehicles have two separate wires and connectors. Mark wires for installation. Connecting wires on
wrong terminals may cause fuel to ignite, resulting in injury to personnel.
Do not perform testing near fuel tank with fill cap or sending unit removed. Fuel may ignite, causing
injury to personnel.
Do not drain oil when engine is hot. Injury to personnel may result.
If NBC exposure is suspected, all air filter media should be handled by personnel wearing protective
equipment. Consult your unit NBC officer or NBC NCO for appropriate handling or disposal instructions.
NBC contaminated filters must be handled using adequate precautions (FM
21-40)
and must be disposed
of by trained personnel.
Diesel fuel is flammable. Do not perform fuel system procedures near open flame. Injury to personnel may
result.
Do not touch hot exhaust system components with bare hands. Injury to personnel may result.
Care must be taken while removing surge tank cap when engine temperature is above 175°F (79
o
C).
Escaping steam or hot coolant may cause injury to personnel.
Use caution when testing thermostat. Hot water may cause injury to personnel.
Use care when removing fan blade. Failure to do so may cause injury to personnel.
Eye protection must be worn when removing or installing springs under tension. Failure to do so may
result in injury to personnel.
Do not smoke, have open flame, or make sparks when performing battery maintenance. Batteries may
explode, causing severe injury to personnel.
Do not wear jewelry when repairing harnesses. Injury to personnel may result if circuit is suddenly
energized.
Warning b
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