TM-9-2320-280-20-1
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 1 OF 3
JANUARY 1996
TM-9-2320-280-20-1 - Page 3 of 888
WARNING SUMMARY
(Cont'd)
• Drycleaning solvent is flammable and will not be used near an open flame. A fire extinguisher will be
kept nearby when the solvent is used. Use only in well-ventilated places. Failure to do this may result in
injury to personnel and/or damage to equipment.
• Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use only with effective chip
guarding and personal protective equipment (goggles/shield, gloves, etc.).
• Diesel fuel is highly flammable. Do not perform any procedure near fire, flames, or sparks. Severe injury
or death will result.
• Do not touch hot exhaust system components with bare hands. Severe injury will result.
• Do not remove surge tank filler cap before releasing internal pressure when engine temperature is above
190°F (88°C). Steam or hot coolant under pressure will cause injury.
• Do not drain oil when engine is hot. Severe injury to personnel will result.
• Always wear eye protection when bleeding brakes. Failure to do this may cause injury if brake fluid
comes in contact with eyes.
• Do not perform battery system checks or inspections while smoking or near fire, flames, or sparks.
Batteries may explode causing damage to vehicle, injury, or death to personnel.
• Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or disconnected battery ground cable
contacts battery terminal, a direct short will result, causing injury to personnel, or damage to equip-
ment.
• Use caution when testing thermostat. Hot water will cause burns.
• Negative battery cable must be disconnected before disconnecting any harness from protective control
box, or serious injury to personnel or damage to equipment will result.
• Keep hands and arms away from fan blade and drivebelts while engine is running, or serious injury may
result.
• Battery acid (electrolyte) is extremely harmful. Always wear safety goggles and rubber gloves, and do
not smoke when performing maintenance on batteries. Injury will result if acid contacts eyes or skin.
• When removing battery cable clamps, disconnect ground cable first. Ensure all switches are in OFF posi-
tion before disconnecting ground cable. Do not allow tools to come in contact with vehicle when discon-
necting cable clamps. A direct short can result, causing instant heating of tools, tool damage, battery
damage, or battery explosion.
• Allow transmission/transfer case to cool before performing maintenance. Failure to do this may cause
injury.
• Always apply parking brake and chock opposite wheel before removing wheel. Avoid removing wheel
when vehicle is on sloping terrain. Injury to personnel or damage to equipment may result.
• Gloves must be worn whenever handling winch cable. Severe injury may result.
• Opening one end of cargo door without ensuring opposite end is securely closed will cause both ends to
open simultaneously, resulting in injury to personnel or damage to equipment.
• Direct all personnel to stand clear during engine hoisting operations. Failure to do this may cause injury
to personnel.
• Hydraulic jacks are used for raising and lowering, and are not used to support vehicle. Never work
under vehicle unless wheels are blocked and it is properly supported. Injury or damage to equipment
may result if vehicle suddenly shifts or moves.
• Remove only the inner group of nuts when removing a wheel from the vehicle. Removing the outer nuts
which hold the rim together while the assembly is inflated could result in serious injury or death.
TM 9-2320-280-20-1
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