TM-9-2320-279-20-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3
TM-9-2320-279-20-1 - Page 13 of 985
TM 9-2320-279-20-1
WARNING
When inflating tires mounted on the vehicle, all personnel must remain out of trajectory of
the side ring and lockring as shown by the areas indicated. Failure to follow proper
procedures may result in serious injury or death to personnel.
WARNING
During pressure tests, ensure air pressure is drained to 0 psi (0 kPa) before taking off any
components.
If pressure is not released, plates or line could blow off and harm personnel.
Do not drain air from tank with any part of body in air spray path. Skin embolisms and/or
debris in eyes can occur from released pressure.
WARNING
Always completely deflate tire by removing valve core from valve stem before attempting
demounting operation. After air has finished exhausting from valve stem, carefully run a
piece of wire through valve stem to ensure it is not plugged and tire is completely deflated.
Failure to comply may result in injury to personnel.
WARNING
High air pressure may be released from valve stem when valve core is removed. Stay clear
of valve stem after core is removed. Ensure all personnel wear suitable eye protection.
Failure to comply may result in injury to personnel.
WARNING
Stand clear of trajectory area during deflation or personal injury or death may result.
WARNING
Lockring is under tension. If lockring breaks loose it could cause injury to personnel. Keep
hands and fingers away from lockring when removing.
WARNING
When lockring snaps into position it could pinch hands and lingers. Do not allow hands or
fingers to get between lockring and lockring groove when installing lockring or injury to
personnel may result.
WARNING
Raised notch on lockring must face away from wheel or lockring will not seat properly in
lockring groove causing lockring to unseat possibly causing injury to personnel.
WARNING
Cracked, broken, bent or otherwise damaged rim components shall not be reworked, welded,
brazed, or otherwise heated or damage or personal injury or death may result.
WARNING
No heat shall be applied to a multi-piece wheel or wheel component or damage or injury or
death may result.
WARNING
Lockring must be fully seated in lockring groove around the entire circumference or
lockring could unseat during tire inflation causing serious injury to personnel.
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