Great Dane 42101401 - Manual (Page 17)

15
SINGLE-PIECE RIM WHEELS
Illustrated, complete safe operating procedures are
provided on the wall chart “Mounting and Demounting
Procedures for Truck/Bus Tires” available from the
Department of Transportation, and OSHA.
The following minimum steps are recommended to pro-
vide maximum safety when servicing single-piece
wheels:
• The tire must be completely deflated by the removal
of the valve core before demounting.
• Mounting and demounting of the tire must be per-
formed only from the narrow ledge side of the wheel.
Care must be taken to avoid damaging the tire
beads, and the tire must be mounted only on a com-
patible wheel of mating bead diameter and width.
Proper tools must be used.
• A non-flammable bead lubricant must be applied to
bead and wheel mating surfaces before assembling,
unless the wheel manufacturer recommends against
the use of any lubricant.
• If a tire changing machine is used, the tire may be
inflated only to the minimum pressure necessary to
force the tire bead onto the rim ledge and create an
airtight seal before removal from the tire changing
machine.
• If a bead expander is used, it must be removed
before the valve core is installed and as soon as the
rim wheel becomes airtight (when the tire bead slips
onto the bead seat).
• The tire must always be inflated within a restraining
device/safety cage.
• The tire must not be inflated to more than the cold-
inflation pressure molded in the sidewall unless a
higher pressure is recommended by the manufacturer.
• Cracked, broken, bent, or otherwise damaged wheels
must not be reworked, welded, braced, or other wise
heated.
RIM AND WHEEL INSPECTION
AND MAINTENANCE
1. Check all metal surfaces thoroughly, including area
between duals and on inboard side of wheel.
Watch for:
a. Excessive rust or corrosion buildup
b. Cracks in metal
c. Bent flanges, resulting from road obstructions
d. Deep rim tool marks on rings or in gutter areas
e. Loose, missing or damaged nuts or clamps
f. Bent or stripped studs
g. Damaged or missing rim drive plates
h. Mismatched rim parts
2. Remove damaged rims or wheels.
3. Mark damaged or hazardous areas so that part will
be removed from service.
4. Replace damaged parts. Insure that replacements
are made with the proper sizes and types of rim
wheels.
5. Inflate tires only to recommended air pressures.
DANGER Be sure that replacements are made
with the proper sizes and types of rim wheels.
WARNING Excessively corroded or cracked
rims or rings can be dangerous. Deflate tires
prior to the removal of rims or wheels from
vehicle.