TM 9-2330-294-14
(11) Mount serviceable outer wheel and tire
c. Changing Wheel and Tire on Vehicle No. 201
and On.
assembly on inner wheel nuts, alining rim valve
openings to mate. Install the 10 wheel stud nuts.
NOTE
Rounded face of nut must be against wheel.
If the semitrailer is unloaded, the entire side
WARNING
of the semitrailer may be jacked up as shown
Do not operate trailer with loose or missing
in figure 2-16 position A, otherwise follow
wheel nuts.
the procedures listed below.
CAUTION
(1) Set semitrailer brakes to prevent movement,
The cap nuts should be retightened with a
(2) Remove spare tire and wheel from gooseneck
torque wrench as soon as the trailer returns
to organizational maintenance.
(3) Using wheel nut socket wrench (10, fig. B-2)
(12) Alternately tighten outer wheel nuts
and wrench handle bar (2, fig. B-1) loosen the 10 cap
slightly to seat ball faces and to insure wheel being
nuts securing the outer and inner wheel to be
centered. Use tightening sequence shown in figure 2-
removed.
22 to tighten outer wheel nuts as near as possible to
NOTE
575-600 pound foot torque.
All studs and nuts are right-hand threaded.
NOTE
The air suspension or air lift system may be
used to raise axles for changing tires. The
two front axles can be raised by applying
FULL air pressure to the rear suspension if
trailer is without a payload. The two rear
axles are raised by putting the air control
valve handle in NO LOAD (LIFT) position.
(4) Place jack under axle near wheel to be
removed and raise axle until tire is off the ground.
(5) Remove the 10 cap nuts and remove the
outer and inner wheel assemblies from drum.
CAUTION
It is important that these surfaces are clean.
A little dirt between the wheels and hub will
vibrate out and cause a loose wheel.
(6) Clean all dirt from studs and mating surfaces
of drum face and wheel disc.
CAUTION
In a dual-wheel assembly both tires should
be matched in diameter in order to prevent
overloading one tire. If the diameter between
inner and outer tire differs by more than
inch or tread depth by inch, tires should
be changed at completion of the mission to
(13) Lower jack, if used, or lower axles by
obtain a closer match. Notify organizational
releasing air pressure from air springs or air lifts.
maintenance personnel.
(14) Install the spare wheel and tire assembly on
(7) Mount serviceable inner and outer wheel and
the spare tire carrier (para 2-25). Stow jack in towing
tire assembly on drum studs, alining rim valve
vehicle.
openings to mate. Install the 10 cap nuts on studs.
(15) After approxiamately 25 to 50 miles of
Flange of nut must be against wheel.
semitrailer operation with payload, retighten outer
WARNING
cap nuts. If an outer cap nut is loose, loosen it two
Do not operate trailer with loose or missing
turns and check tightness of inner cap nut before
wheel nuts.
retightening.
Change 1
2-35
