TM-55-2320-273-14
TRUCK TRACTOR, LINE-HAUL
TECHNICAL MANUAL; TRANSPORTABILITY GUIDANCE
AUGUST 1986
TM-55-2320-273-14 - Page 21 of 40
TM 55-2320-273-14
CHAPTER 5
HIGHWAY AND OFFROAD TRANSPORTABILITY GUIDANCE
Section 1. GENERAL
5-1. Scope
5-2. Safety
This chapter provides highway and offroad transporta-
In addition to the safety precautions in chapter 3, the
bility guidance for movement of the 14- and 20-ton
vehicles, when moved over public highways in
truck tractors. It covers significant technical and phys-
CONUS, are subject to all safety laws, rules, and regu-
ical characteristics, as well as safety considerations,
lations applicable to commercial carriers. In overseas
and prescribes the materials and guidance required to
areas, movements are governed by theater and local
prepare, load, and tie down these vehicles.
regulations,
Section Il. SELF-PROPELLED
MOVEMENT
5-3. General
The 14- and 20-ton truck tractors can be moved under
their own power either empty and/or towing a semi-
trailer as applicable to the vehicle considered. These
vehicles exceed the legal width limitations for high-
way movement in CONUS and overseas. The proce-
dures for obtaining special permits in CONUS are out-
lined in AR 55-162. Legal limitations of overseas
areas are identified in “Limits of Motor Vehicle Sizes
and Weights,” International Road Federation, Geneva,
Switzerland.
5-4. Preparation of Trucks
For trucks that are moved under their own power, no
special preparation is required other than organiza-
tional maintenance. Special preparation for transport
by semitrailer of the 14- and 20-ton truck tractor may
consist of reducing the vehicle to their lowest shipping
configuration.
Section Ill. TRANSPORT OF SEMITRAILERS
5-5. General
The truck tractors in themselves are not a major prob-
lem. The major transportability problem occurs when
these tractors and semitrailers with maximum pay-
loads are combined.
5-6. M915 FOV Truck Tractor/M872 Semi-
trailer
All of the M915 FOV truck tractors (M915, M915A1,
M916 and M920) when pulling a semitrailer with a
maximum allowable payload will exceed the width and
gross vehicle weight. This is a major transportability
problem. When this problem occurs, special permits
will be required both in CONUS and overseas. Proce-
dures for obtaining special permits are found in AR
55-162 for CONUS and USARER Reg 55-1. Your ITO
in CONUS and the TMO in the overseas area will assist
you in getting these special permits.
5-1
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