Holiday Neptune 2004, Owner'S Manual

Page: 77 / 416

DRIVING & SAFETY --- SECTION 2 • 77
NEPTUNE 2004
2
Sudden tire failure or a blowout is often preceded by tire vibration. Symptoms
that can indicate a potenial tire failure are a bulge in the sidewall or swelling in the
tire carcass. Striking an object or large hole in the road surface can damage a tire.
Inspect the tires immediately after any such occurrence. Continue to inspect the
tires periodically thereafter in case minor damage occurred. Rotation forces can
continue to stress damaged areas that can manifest later in a sudden tire failure. If
an unusual vibration begins, or a bulge is noticed in a sidewall, have the tires
evaluated by a qualified professional as soon as possible.
Tire rotation can increase the useful life of the tires by achieving uniform wear.
The first tire rotation is the most important in determining which rotation pattern
to use and should be determined by a tire manufacturer. Unusual or unique wear
patterns, or indications of uneven wear that may have developed, should be
evaluated for possible tire rotation. Misalignment, imbalance or other mechanical
problems may exist and will need corrected prior to rotation.
After a tire rotation, check and adjust inflation pressures for the actual loads of
the wheel position.
Tires are warranted by the tire manufacturer. The motorhome manufacturer is
not responsible for warranty coverage or tire wear.
Tires must be replaced when the tread is worn down to 4/32 of an inch on the
front and 2/32 of an inch on the rear in order to prevent skidding and hydroplaning. If
there are questions regarding tread wear consult a tire dealer as soon as possible.
Built in tread wear indicators, or “wear bars,” which look like narrow strips of
smooth rubber across the tread will appear on the tire when the tread is worn down
to 2/32 of an inch. When these “wear bars” are noticed, the tire is worn out and
should be replaced.
Visually check tires for signs of uneven wear. The tire may have irregular tread
wear if there are high and low areas or unusually smooth areas. Consult the tire
manufacturer as soon as possible.
WARNING: In many instances the life of the tires on the
motorhome is not determined by mileage but by age. Tires are
subject to weathering. Weathering cracks run in circumference
with the tire. Though the sidewall of the tire may look fine and
structurally sound, weathering can occur inside the well of the
tread, therefore replacement may be determined not by mileage
but age. Have the tire manufacturer inspect the tires for age
weathering.
Tire Vibration
Tire Rotation
Tread