Tiffin Motorhomes WAYFARER 2017 Owner's Manual page 122

ROUTINE MAINTENANCE
manufacturer, brand, and /or model name molding that is higher or deeper than the same molding on
the other sidewall of the tire or the outward facing sidewall of an asymmetrical tire that has a particular
side that must always face outward when mounted on a vehicle.
Light truck (LT) tire—A tire designated by its manufacturer as primarily intended for use on lightweight
trucks or multipurpose passenger vehicles.
Load rating—The maximum load that a tire is rated to carry for a given inflation pressure. Maximum
load rating—The load rating for a tire at the maximum permissible inflation pressure for that tire.
Maximum permissible inflation pressure—The maximum cold inflation pressure to which a tire may be
inflated.
Maximum loaded vehicle weight—The sum of curb weight, accessory weight, vehicle capacity weight,
and production options weight.
Measuring rim—The rim on which a tire is fitted for physical dimension requirements.
Non-pneumatic rim—A mechanical device which, when a non-pneumatic tire assembly incorporates a
wheel, supports the tire, and attaches, either integrally or separably, to the wheel center member and
upon which the tire is attached.
Non-pneumatic tire assembly—A non-pneumatic tire, alone or in combination with a wheel or wheel
center member, which can be mounted on a vehicle.
Normal occupant weight—This means 68 kilograms (150 lbs.) times the number of occupants specified
in the second column of Table I of 49 CFR 571.110.
Occupant distribution—The distribution of occupants in a vehicle as specified in the third column of
Table I of 49 CFR 571.110.
Open splice—Any parting at any junction of tread, sidewall, or innerliner that extends to cord material.
Outer diameter—The overall diameter of an inflated new tire.
Overall width—The linear distance between the exteriors of the sidewalls of an inflated tire, including
elevations due to labeling, decorations, or protective bands or ribs.
Pin Weight—The vertical trailer load supported by the king pin of a fifth wheel hitch.
Ply—A layer of rubber-coated parallel cords.
Ply separation—A parting of rubber compound between adjacent plies.
Pneumatic tire—A mechanical device made of rubber, chemicals, fabric and steel or other materials
that, when mounted on an automotive wheel, provides the traction and contains the gas or fluid that
sustains the load.
Production options weight—The combined weight of those installed regular production options
weighing over 2.3 kilograms (5 lbs.) in excess of those standard items which they replace, not previously
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