TM-9-2320-273-10
TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; OPERATOR’S MANUAL
DECEMBER 2012
TM-9-2320-273-10 - Page 397 of 452
OPERATOR MAINTENANCE
MAINTENANCE UNDER UNUSUAL CONDITIONS
INITIAL SETUP:
References
FM 9-207
WP 0003
WP 0016
WP 0017
References - Continued
WP 0025
WP 0026
WP 0029
WP 0035
GENERAL
This work package (WP) provides special instructions for maintaining vehicles under
unusual conditions, which include extreme temperatures, humidity, fording, and difficult
terrain. When operating under unusual conditions, it is especially important to keep the
vehicle clean and adequately lubricated.
EXTREME COLD WEATHER
1.
In extreme cold weather it is essential the vehicle is kept in top condition or it
will be very difficult to get the vehicle started. Ensure all scheduled PMCS
(WP 0025) are carefully performed prior to operation, and be sure to notify
supervisor of any problems.
2.
Always give engine extra time to reach its operating temperature range of
165–195° F (74–91° C) for M915 through M920 or 180–200° F (82–93° C) for
M915A1.
3.
For detailed guidance on antifreeze protection, lubrication, electrical system
service, and other maintenance requirements for extreme cold weather operations,
refer to FM 9-207.
4.
The power steering system incorporates a cooler designed to reduce power
steering fluid temperatures during normal or unusually warm conditions. In
extremely cold weather, the cooler becomes restrictive and must be bypassed to
prevent over pressure and possible rupture of the cooler. Notify supervisor to
perform maintenance when 0° F (–18° C) or below is expected.
5.
For M915P1, M915A1P1, M916P1, M917P1, and M920P1, ensure procedure for
removing frost and ice from ballistic glass (WP 0016) is properly performed to
prevent damage to ballistic glass.
END OF TASK
TM 9-2320-273-10
0034
0034-1
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