WHEELS AND TIRES
The size of tires used on this crane are 16.00 x R21.
Off-highway tires are designed to operate with a
certain sidewall deflection or bulge. Correct air
pressure ensures proper deflection which, in turn,
ensures proper traction, flotation, support of load,
Do not mix tires and rims of different
and prevents excessive flexing of the tire. Over
inflation increases rim stresses, which results in
lowered rim life.
Each wheel assembly (tire and rim) weighs
approximately 540 pounds (245 kg) and is mounted
Refer to and adhere to the inflation pressures on the
on the planetary hub with 10 M22 lug nuts.
Tire Inflation decal on the crane.
The tire diameters, widths, and weights may vary slightly depending on
Torque the lug nuts to 435 pounds-foot (590
Nm) in the sequence shown in the Lug Nut Torquing
Do not attempt to demount or mount
tires without proper training. The high
pressures involved can cause tire and
rim parts and tools to fly with explosive
force, if proper procedures are not used,
causing severe injury or death to
personnel and damage to the crane and
MOUNTING WHEEL ASSEMBLIES.
Do not lubricate the wheel studs or lug
Position the wheel assembly on the mounting
studs. Install the lug nuts and washer and tighten
them until they are just snug, rotating the wheel so
the nut being tightened is in the top position.
Ensure the wheel assembly is positioned
properly on the hub.
Figure 2-4-5. Lug Nut Torquing Sequence