c. Field Reports of Accidents. T h e r e p o r t s n e c e s s a r y t o c o m p l y
scribed in detail in SR 385-10-40. These reports are required
whenever accidents involving injury to personnel or damage to
d. Report of Unsatisfactory Equipment and Materiels. A n y
deficiencies detected in the equipment covered herein which occur
under the circumstances indicated in AR 700-38 should be
immediately reported in accordance with the applicable instruc-
tions in those regulations.
Section Il. DESCRIPTION AND DATA
(1) The 12-ton 4-wheel wrecker low-bed semitrailers M270A1
(figs. 3, 6, and 8) are designed to be towed by the
5 ton 6 x 6 truck tractor M52 or similar vehicle equipped
with fifth wheel (lower coupler).
(2) Each semitrailer has two axles at the rear mounted
on a leaf-spring suspension. A fifth wheel upper plate
trailer includes a kingpin which is fitted into the fifth
wheel on a towing vehicle to permit the semitrailer
to be towed.
semitrailer when not coupled to a towing vehicle.
Each semitrailer is equipped with two chock blocks
(fig. 14) to prevent rolling when parked. Each chock
block is chained to the chassis frame to prevent loss.
brackets welded to the chassis frame beams near the
(4) The spare tire is carried on a winch-type spare wheel
and tire carrier assembly (figs. 4-6) under the right
side of the chassis frame. A tool box, of which the
tool box door (figs. 7 and 8) is part, is provided be-
tween the chassis frame beams at the front end or
nose of the semitrailer, directly over the fifth wheel
(5) Lights on each semitrailer are supplied with current
by and operated from the towing vehicle.