OPERATING REAR SUPPORT LEGS (CONT)
(4) Remove tools, replace cover (2) over adjusting nut (3), and secure cover with latch (1). Ensure that cover
closes freely with no interference between bar (7) on cover and socket head screw (6).
(5) Repeat steps (1) thru (4) of this procedure as required to raise other rear support leg.
e. Once support legs are supporting platform or retracted and stowed for transport, stow tools back into platform
f. If any material was used to provide ground support for rear support legs (6), remove and stow or dispose of
TRACTOR/SEMITRAILER COUPLING AND UNCOUPLING
a. To couple tractor/semitrailer, proceed as follows:
(1) Apply a generous amount of grease (item 12, appx. E) to contact areas of pickup plate, kingpin (1), steering
wedge (2), vee entry ramps (3), and fifth wheel (4).
Tractor fifth wheel side-to-side oscillation lockouts must be disengaged for all
tractor/semitrailer operations or severe damage to equipment may result.
(2) Ensure both fifth wheel locks (5) are set to accept kingpin (1). If tractor fifth wheel is equipped with side-to-
side oscillation lockouts (e.g., M1070, MK48/16), ensure lockouts are disengaged.
(4) Verify that front and rear support legs are lowered and supporting platform (para. 2-22 and 2-23).
Prior to adjusting gooseneck height, pull out both gooseneck isolation and
suspension abut-off valve handles to the ADJUST position or injury to personnel
from unexpected movement and damage to equipment may result.
(5) Make sure gooseneck isolation valve handle (6) and suspension shut-off valve handle (7) are pulled outward
to ADJUST positions. Make sure valve handles are pulled out as far as they will go.
2-72 Change 1