Grand Design Momentum, Owner'S Manual

Page: 67 / 220

65
Pre-Travel Information
Checking Tire Pressure
It is important to check your vehicle’s tire pressure at least
once a month for the following reasons:
• Most tires naturally lose air over time.
• Tires can lose air suddenly by driving over a pothole,
hitting road debris, or striking the curb when parking.
• With radial tires, it is usually not possible to determine
under-inflation by visual inspection.
For safety and convenience, purchase a tire pressure gauge
to keep in your vehicle. They are sold at auto parts stores,
hardware stores and many other retail outlets.
Steps for maintaining proper tire pressure
1. To find the recommended tire pressure, locate the
RV’s
Tire and Loading Information label
located on
the off-door-side, forward exterior.
2. Check the tire pressure of all tires with a tire pressure
gauge (customer supplied).
a. If the tire pressure is
too high in any of the tires,
gently press on the tire valve stem with the edge
of your tire gauge. Slowly release air until the
correct pressure is reached.
b. If the tire pressure is too low in any of the tires, note
the difference between the measured tire pressure
and the correct tire pressure. This is the amount of
air pressure that needs to be added.
• Although it is ideal to check and fill tires when they
are cold, if you have been driving and have an RV tire
that is under-inflated, fill it to the recommended cold
inflation pressure
( indicated on your vehicle’s Tire and
Loading Information label ).
◦
The warm tire may remain slightly under-inflated,
but is much safer than driving with a
significantly
under-inflated tire. This fix is ONLY temporary .
◦
REMEMBER to re-check and adjust the tire’s pressure
as-soon-as you can obtain a cold reading.
3. At a service station or using an air compressor,
add air to each tire that is under-inflated.
4. Re-check the tires to confirm that they all have the same
air pressure.
Always check tire pressure
when tires are cold. Cold
tire inflation pressure is
defined as a tire that has
not been used for three or
more hours, or has been
driven less than one mile.
Tire inflation pressure of
a hot tire may show an
increase as much as 6
PSI over a cold tire. Do
not exceed the maximum
recommended pressure.
WARNING