2-28. SPECIAL INSTRUCTIONS
a. General. Special instructions for operating and maintaining vehicles under
unusual conditions are included in this section. Unusual conditions are extreme
temperatures, humidity, and/or terrain. Special care in cleaning and lubrication
must be taken in order to keep vehicles operational when operating under unusual
This vehicle has been designed to operate safely and efficiently
within the limits specified in this TM. Operation beyond these limits
is prohibited 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.
Except where noted, all normal operating procedures will apply in
addition to special instructions for unusual operating conditions.
b. Cleaning. Refer to para. 2-4 for cleaning instructions and precautions.
c. Lubrication. Refer to appendix G for proper lubricating instructions.
d. 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 Unit 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°F to -65°F
(-18°C to -54°C).
(4) Other documents with information on vehicle operation under unusual
(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
e. Special Purpose Kits. Paragraphs describing special purpose kits for
operation under unusual conditions are:
(1) Deep water fording operation, para. 2-37.
(2) Arctic operation, para. 2-39 or 2-40.
f. Transmission Range Selection. For proper transmission range selection,
refer to table 1-7 or table 1-8. If transmission range selection is peculiar to an
unusual operating condition, it will be specified in the applicable paragraph.
g. Transfer Case Range Selection.
Vehicle must be stopped, engine off, 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.
Section IV. OPERATION UNDER UNUSUAL CONDITIONS