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Tire Removal
Figure  3-28.Pneumatic  tire  demounter. ]

Equipment Operator Basic - Beginning construction equipment operators manual
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Figure 3-26.-Truck spoke wheels. nut for each wheel. Either single or dual wheels can be securely   mounted   on   the   same   hub   with   this arrangement. The outer nut must be loosened first to free the outer wheel disc from the hub. Loosening the outer nut, which threads over the inner nut, unfastens the outer wheel disc. In removing dual-disc wheels, you will find left-hand threads on both inner and outer nuts on the left wheels and right-hand threads on those of the right wheels. Reverse the procedure to mount and tighten the wheels.  Dual-disc  wheel  mounting  is  shown  in  figure 3-25. On trucks having spoke wheels, remove the clamps which secure the rim on the spoke wheel (fig. 3-26), and lift off the rim with the tire and tube. If the spoke has two tires, the second rim and tire can be lifted off after the  spacer  separating  the  rims  is  removed.  When installing the wheels, install the outer dual in a position that places the valve stem 180 degrees from the stem on the  inner  tire  (fig.  3-27). TIRE  REPAIR Facilities for repairing tires vary from one location to another. Some deployment locations have power- operated tire repair equipment to support tire repair. This Figure  3-27.—180-degree  valve  stem  location. 3-13







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