Finally, insert the other half of the wheel and align the
bolt holes.
CAUTION
NOTE: All bolts must be magnetic particle
You must take extreme care when you break the
inspected to ensure they are not defective.
beads loose and remove the lockring on some
demountable flange wheels. The toe of the
Install four bolts, nuts, and washers 90 degrees
demountable flange may extend very close to the tube
apart. Start the bolts by hand, and tighten them evenly
valve stem. Excessive travel of the demountable
until the wheel halves seat. Install the remaining bolts,
flange or of the tire bead may damage the rubber base
nuts, and washers. Tighten the bolts in a crisscross
of the inner tube valve.
order to prevent distorting the wheel or damaging the
inserts. A pneumatic-powered impact wrench may be
used, provided the torque obtained does not exceed 25
If the tire is tubeless, remove the wheel seal
percent of the specified final torque required for the
carefully and place it on a clean surface. Wheel seals in
wheel. Use a calibrated torque wrench, and tighten each
satisfactory condition may be reused if replacement
bolt in increments of 25 percent of the specified torque
seals are not available. Turn the tire and wheel
value in a crisscross order until the total torque value
assembly over and lift the wheel out of the tire.
required for each bolt in the wheel has been reached.
Remember to keep the wheel flange and locking ring
together as a unit to avoid mismatch during
NOTE: When lubtork is specified on the wheel
remounting.
half, coat all the treads and bearing surfaces of the bolt
heads with MIL-T-5544 antiseize compound. Lubtork
Mounting
must not be used on magnesium wheels. For
magnesium wheels, you should use MIL-G-21164
Prior to mounting a tire on a wheel, you should
lubricant. All excessive lubricant should be removed.
inspect the tire and ensure the inside of the tire is free of
Before mounting tubeless tires, check the tire
foreign materials. The inner tube must be inspected for
sidewall for the word tubeless. Tires without this
bead chafing, thinning, folding, surface checking, heat
marking should be treated as tube tires. When you
damage, fabric liner separation, valve pad separation,
mount tubeless tires, install the valve stem (valve core
damaged valves, leaks, and other signs of deterioration.
removed) in the wheel assembly. Removing the valve
MOUNTING DIVIDED (SPLIT) WHEELS.--
core prevents unseating of the wheel seal by the
All wheel halves should be matched by year and month
pressure built up when the tire is installed. Insert one
of manufacture as closely as possible. Wheel
wheel half in the tire, and position the tire so the
assemblies received from overhaul that have matching
balance marker on the tire is located at the valve stem.
overhaul dates on both rims should be maintained as
Install the wheel seal. Be sure the outer wheel half has
matched assemblies. In the event a wheel assembly is
been lubricated with a light coat of MIL-G-4343
received or made up of wheel halves having different
lubricant. Install the other wheel half and align the bolt
overhaul dates, the wheel overhaul should be based
holes. Install the bolts, washers, and nuts in the same
upon the earlier date. All wheels should fit together
manner used for the wheel assembly containing inner
easily.
tubes.
When you mount a tube tire, dust the tube with
MOUNTING DEMOUNTABLE FLANGE
talcum powder and insert it in the tire. The tire should
WHEELS.--When you mount a tube tire on a
be positioned so the balance marker on the tube is
demountable flange wheel, the inner tube should be
located next to the balance marker on the tire.
prepared and inserted in the tire in the same manner
used on a split or divided wheel. The wheel is then
NOTE: The balance marker on an inner tube is a
positioned on a flat surface with the fixed flange down.
stripe of contrasting colors approximately 1/2 inch
Push the tire on the wheel assembly as far as it will go,
wide and 2 inches long. It is located on the valve side of
and guide the valve stem into the valve slot with the
the tube. The balance mark on a tire is a red dot
fingers. Install the demountable flange on the wheel.
approximately one-half inch in diameter. It is located
Secure the locking ring according to the assembly
on the sidewall near the bead.
instructions required by the applicable wheel manual.
You should inflate the tube until it is round, and
When you mount a tubeless tire on a demountable
then place the valve-hole half of the wheel into position
flange wheel, install the valve stem (valve core
in the tire. Push the valve stem through the hole.
7-17
