19
18
NOTE
:
Tires are warranted by the manufacturer of their respective brand, and are to be
serviced and warranted by a service center. They are not to be returned to the dealer or
manufacturer of your RV trailer.
MAX. LOAD
UNIT
SIZE
LOAD RANGE
PER TIRE
Kiwi 21C
ST175/80R13
B
1100
Kiwi 17A, 23B, 23D, 25E
ST185/80R13
C
1480
Kiwi Too 22U, 22V
ST185/80R13
C
1480
Kiwi Too 29R, 26S, 30T, 25W
ST205/75R14
C
1760
Wheel Lugs
1
WARNING: Wheel lug nuts must be applied and maintained at the
proper toque levels to prevent loose wheels, broken studs, and possible
separation of the wheel(s) from your trailer. The lug nuts on the wheels of
your Jayco trailer must be maintained according to the torque values listed in
the chart contained in this section. Over torquing wheels is as dangerous as
under torquing.
1
WARNING:
The motion involved in being towed, especially during
the break-in period, can cause wheel lug nuts to loosen. Wheel lug nuts
should be torqued before the first road use and after each wheel removal or
installation. Check and re-torque after the first 10, 25 and 50 miles (16, 40
and 80 kilometers). Thereafter, check and maintian the torque as defined in
this section.
After your first trip, check the wheel lugs periodically for safety. The wheel lugs should
then be checked after winter storage, before starting a trip or following extensive braking.
All lug nuts are 13/16”. Be sure to use only lug nuts mateched to the cone angle of your
wheel (usually 60° or 90°). The proper procedure and sequence for attaching the wheels
and torquing lug nuts is as follows:
1. Start all nuts by hand to avoid cross threading.
2. Tighten the nuts in the sequence shown in Fig. 3-4.
3. The tightening of the lug nuts should be done in stages,
with all nuts tightened
equally at each stage.
4.
Wheel lug nuts should be torqued before the first road use and after each wheel
removal. Check and re-torque after the first 10, 25 and 50 miles (16, 40 and 80
kilometers). Thereafter, check and maintain the torque as defined in the next
section.
WEIGHING INSTRUCTIONS
To properly weigh your recreation vehicle, it should first be weighed, including the
tongue weight, while detached from the tow vehicle. This actual overall weight must be
less than or equal to the GVWR for safe operation. If the overall weight is greater than
the GVWR, some contents must be removed until maximum GVWR limitations are
achieved. Once the actual overall weight is determined and the recreation vehicle is
within GVWR limits, the following weights should be determined:
1. The weight of complete recreation vehicle, while attached, but excluding the tow
vehicle. This will result in the actual weight which is exerted on all of the recreation
vehicle tires. This weight may be subtracted from the overall recreation vehicle
weight (above) to determine actual “tongue” weight.
2. With the recreation vehicle still attached to the tow vehicle, each wheel position
should then be weighed separately to be sure each tire is not overloaded.
TO DETERMINE THE WHEEL POSITION WEIGHT:
• Pull the recreation vehicle onto the scale so that only one tire is on the scale.
Record the weight. Your trailer must remain as level as possible on the scale
(even though an axle or side is not physically on the scale). Obviously, to obtain
the side-to-side weights, there must be enough space on either side of the scale to
accommodate the recreation vehicle being partially off the scale.
• To calculate the opposite side of the vehicle wheel position weight, subtract the
first side’s weight from the weight determined in step #1.
If there is a difference in the weights on one side of the vehicle as compared to weights
on the other side, components (tires, wheels, brakes, springs, etc.) on the heavier side
could be overloaded, even though the total axle load is within the GVWR. It is important
to redistribute the load to avoid component failure, as well as to improve the handling
characteristics of the vehicle.
TIRES
All Jayco towable travel trailers are equipped with name brand tires, designed and built
for recreation vehicles. Tires are radial in design, having two steel cords and two
polyester cords, offering excellent strength and mileage in various types of weather.
The air pressure should be maintained at its recommended pressure. Always check the
tires when they are cold, such as before traveling at the beginning of the day. It is normal
for air pressure to increase when traveling as tires will heat up.
DO NOT
release air
pressure as tires become hot. If you do, the tires will then be underinflated when they
cool down.
1
WARNING:
It is recommended that the tire pressure be checked at
the beginning of each journey to obtain the maximum life of the tires.
Underinflated tires may overheat and fail or detach from the rims.
Inflation
Always follow inflation guidelines printed on sidewall of tire. For tire removal and
raising travel trailer, see Chapter 7, Maintenance.
Following the sequence as illustrated, tighten each lug nut in
stages as shown on the wheel torque requirement chart.
Fig. 3-4
