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13-10 Consumer information and Reporting safety defects
3. The result of step 2 shows that a
further 172 lbs (78 kg) of cargo can be
carried.
Example 2B
For example, if a person weighing 143
lbs (65 kg) and a child weighing 40 lbs
(18 kg) now enter the same vehicle
(bringing the number of occupants to
three), and a child restraint system
weighing 11 lbs (5 kg) is installed in
the vehicle for the child to use, the cal-
culations are as follows:
1. Calculate the total weight.
2. Calculate the available load capac-
ity.
3. The total weight now exceeds the
capacity weight by 22 lbs (10 kg), so
the cargo weight must be reduced by
22 lbs (10 kg) or more.
Determining compatibility of
tire and vehicle load capaci-
ties
The sum of four tires’ maximum load
ratings must exceed the maximum
loaded vehicle weight (“GVWR”). In
addition, sum of the maximum load
ratings of two front tires and of two
rear tires must exceed each axle’s
maximum loaded capacity (“GAWR”).
Original equipment tires are designed
to fulfill those conditions.
The maximum loaded vehicle weight
is referred to Gross Vehicle Weight
Rating (GVWR). And each axle’s
maximum loaded capacity is referred
to Gross Axle Weight Rating
(GAWR). The GVWR and each axle’s
GAWR are shown on the vehicle cer-
tification label affixed to the driver’s
door.
The GVWR and front and rear
GAWRs are determined by not only
the maximum load rating of tires but
Available Load Capacity
= 800 lbs (363 kg) 628 lbs (285 kg)
= 172 lbs (78 kg)
(Vehicle
capacity weight)
(Total weight)
D00114
Total weight
= 165 lbs (75 kg) + 143 lbs (65 kg)
+ 40 lbs (18 kg)
+ 11 lbs (5 kg) + 265 lbs (120 kg)
+ 22 lbs (10 kg) + 176 lbs (80 kg)
= 822 lbs (373 kg)
(Occupant)
(Cargo)
(Trailer hitch)
(Child restraint)
(Tongue load)
(Occupant)
Available Load Capacity
= 800 lbs (363 kg) 822 lbs (373 kg)
= 22 lbs ( 10 kg)
(Vehicle
capacity weight)
(Total weight)
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