TM-9-2320-387-10 HMMWV Operator Manual Download
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TM 9-2320-387-10 2-104 Change 1 2-39. SPECIAL INSTRUCTIONS .WARNING. This vehicle has been designed to operate safely and efficiently within the limits specified in this TM. Operation beyond these limits is prohibited by IAW AR 750-1 without written approval from the Commander, U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-CM-S, Warren, MI 48397-5000. NOTE Except where noted, all normal operating procedures will apply in addition to special instructions for unusual operating conditions. a. Cleaning. Refer to para. 2-5 for cleaning instructions and precautions. b. Lubrication. Refer to appendix-G for proper lubricating instructions. c. Driving Instructions. (1) FM 21-305, Manual for the Wheeled Vehicle Driver, contains special driving instructions for operating wheeled vehicles. (2) FM 55-30, Army Motor Transport Units and Operations, contains instructions on driver selection, training, and supervision. (3) FM 9-207, Operation and Maintenance of Ordnance Materiel in Cold Weather, contains instructions on vehicle operation in extreme cold of 0° to -65°F (-18° to -54°C). (4) Other documents with information on vehicle operation under unusual conditions are: (a) FM 31-70 Basic Cold Weather Manual (d) FM 90-5 Jungle Operations (b) FM 31-71 Northern Operations (e) FM 90-6 Mountain Operations (c) FM 90-3 Desert Operations d. Special Purpose Kits. Paragraphs describing special purpose kits for operation under unusual conditions are: (1) Deep water fording operation, para. 2-48. (2) Vehicular heater operation, para. 2-50. e. Transmission Range Selection. For proper transmission range selection, refer to table 1-6. If transmission range selection is peculiar to an unusual operating condition, it will be specified in the applicable paragraph. f. Transfer Case Range Selection. CAUTION • Vehicle must be stopped and transmission shift lever in N (neutral) before transfer case can be shifted. Failure to do this will result in damage to drivetrain. • Damage to drivetrain will result if transfer case is operated in L (low range) or H/L (high/lock range) on high-traction surfaces with no wheel slippage.