Kenworth K270, Body Builder'S Manual

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B-7
Appendix B
Weight Distribution
COMPLETE (LOADED) VEHICLE
Step 4.
The
final step is to put a payload in the van. Assume that the payload is evenly distributed. Freight that
is distributed evenly is referred to as a “water level” load. Our payload total is 8,000 lb. Since it is an evenly dis-
tributed “water level” load, its CG location will be the same as the CG location of the van body. See Figure B–
5.
CGf =
1
2
BL + 72
1
(168) + 72 = 156 in.
2
Using CGf = 156 in equations 1 and 2:
Lr =
CGf
WB
X L
156
214
(8,000) = 5,831 lbs (2644 kg)
Lf = L - Lr 8,000 – 5,831 = 2,169 lbs (983 kg)
Item Front Axle Rear Axle
Total lb (kg)
(FA) lb (kg) (RA) lb (kg)
Chassis 6338.3 2875 3273.8 1484.9 9612.1 4359.9
Fuel 45 Gal Std, Tank 206.2 93.5 108.7 49.30 314.9 142.8
Tare Weight 6544.5 2968.5 3382.5 1534.2 9927 4502.8
Liftgate -735.6 -333.6 2490.6 1129.7 1755 796.0
Van Body 660.7 299.6 4164.3 1888.8 4825 2188.5
Driver 190.6 86.4 9.34 4.23 199.9 90.71
Curb Weight 6660.2 3021.0 10046.74 4557.1 16706.9 7578.1
Payload 2169 983.8 5831 2644.8 8000 3628.7
Total Ground Weight 8829.2 4004.8 15877.7 7202 24706.9 11206.9
Chassis Axle Ratings 8948 4058.7 17052 7734.6 26000 11793.4
Table B-2. K270 Weight Distribution and Chassis Rating Calculation (sample
)