JLG Triple-L Operator Manual - Manual (Page 61)

SECTION 4 - SERVICE AND MAINTENANCE
3121224 – Triple-L-Trailer – 4-21
4.13 TIRE SAFETY INFORMATION
NOTE: This portion of the User’s Manual contains tire safety
information as required by 49 CFR 575.6.
Steps For Determining Correct Load Limit –
Trailer
Determining the load limits of a trailer includes more than
understanding the load limits of the tires alone. On all trail-
ers there is a Federal certification/VIN label that is located
on the forward half of the left (road) side of the unit. This
certification/VIN label will indicate the trailer’s Gross Vehi-
cle Weight Rating (GVWR). This is the most weight the
fully loaded trailer can weigh. It will also provide the Gross
Axle Weight Rating (GAWR). This is the most a particular
axle can weigh. If there are multiple axles, the GAWR of
each axle will be provided.
If your trailer has a GVWR of 10,000 pounds or less, there
is a vehicle placard located in the same location as the
certification label described above. This placard provides
tire and loading information. In addition, this placard will
show a statement regarding maximum cargo capacity.
Cargo can be added to the trailer, up to the maximum
weight specified on the placard. The combined weight of
the cargo is provided as a single number. In any case,
remember: the total weight of a fully loaded trailer can not
exceed the stated GVWR.
For trailers with living quarters installed, the weight of
water and propane also need to be considered. The
weight of fully filled propane containers is considered part
of the weight of the trailer before it is loaded with cargo,
and is not considered part of the disposable cargo load.
Water however, is a disposable cargo weight and is
treated as such. If there is a fresh water storage tank of
100 gallons, this tank when filled would weigh about 800
pounds. If more cargo is being transported, water can be
off-loaded to keep the total amount of cargo added to the
vehicle within the limits of the GVWR so as not to overload
the vehicle. Understanding this flexibility will allow you, the
owner, to make choices that fit your travel needs.
When loading your cargo, be sure it is distributed evenly
to prevent overloading front to back and side to side.
Heavy items should be placed low and as close to the axle
positions as reasonable. Too many items on one side may
overload a tire. The best way to know the actual weight of
the vehicle is to weigh it at a public scale. Talk to your
dealer to discuss the weighing methods needed to cap-
ture the various weights related to the trailer. This would
include the weight empty or unloaded, weights per axle,
wheel, hitch or king-pin, and total weight.
Excessive loads and/or under-inflation cause tire over-
loading and, as a result, abnormal tire flexing occurs. This
situation can generate an excessive amount of heat within
the tire. Excessive heat may lead to tire failure. It is the air
pressure that enables a tire to support the load, so proper
inflation is critical. The proper air pressure may be found
on the certification/VIN label and/or on the Tire Placard.
This value should never exceed the maximum cold infla-
tion pressure stamped on the tire.
Trailers 10,000 Pounds GVWR Or Less
1. Locate the statement, “The weight of cargo should
never exceed XXX kg or XXX lbs.,” on your vehicle’s
placard. See Tire and Loading Information Placard
above.
2. This figure equals the available amount of cargo and
luggage load capacity.
3. Determine the combined weight of luggage and
cargo being loaded on the vehicle. That weight may
not safely exceed the available cargo and luggage
load capacity.
The trailer’s placard refers to the Tire Information Placard
attached adjacent to or near the trailer’s VIN (Certification)
label at the left front of the trailer.
Trailers Over 10,000 Pounds GVWR
NOTE: These Trailers Are Not Required To Have A Tire
Information Placard On The Vehicle
1. Determine the empty weight of your trailer by weigh-
ing the trailer using a public scale or other means.
This step does not have to be repeated.
2. Locate the GVWR (Gross Vehicle Weight Rating) of
the trailer on your trailer’s VIN (Certification) label.
3. Subtract the empty weight of your trailer from the
GVWR stated on the VIN label. That weight is the
maximum available cargo capacity of the trailer and
may not be safely exceeded.
FD-322
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TIRE AND LOADING INFORMATION
Tire and Loading Information Placard