Kenworth K270, Body Builder'S Manual

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B-8
K370 sample, Assume that the payload is evenly distributed. Freight that is distributed evenly is referred to as a
“water level” load. Our payload total is 14,500 lb. Since it is an evenly distributed “water level” load, its CG loca-
tion 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
(14,500) = 10,570 lbs (4794.5 kg)
Lf = L - Lr 14,500 – 10,570 = 3,929.9 lbs (1782.5 kg)
Table B-2.1. K370 Weight Distribution and Chassis Rating Calculation (sample)
Item Front Axle Rear Axle Total lb (kg)
(FA) lb (kg) (RA) lb (kg)
Chassis 6845.3 3104.98 3439.2 1559.995 10284.5 4664.971
Fuel 45 Gal Std, Tank 206.2 93.5307 108.7 49.30549 314.9 142.8362
Tare Weight 7051.5 3198.51 3547.9 1609.3 10599.4 4807.807
Liftgate -735.6 -333.66 2490.6 1129.717 1755 796.0546
Van Body 660.7 299.688 4164.3 1888.895 4825 2188.583
Driver 190.65 86.4774 9.34 4.236553 199.99 90.71394
Curb Weight 7167.25 3251.01 10212.14 4632.149 17379.39 7883.159
Payload 3929.9 1782.57 10570 4794.471 14499.9 6577.044
Total Ground Weight 11097.15 5033.58 20782.14 9426.62 31879.29 14460.2
Chassis Axle Ratings 12000 5443.11 21000 9525.44 33000 14968.55
Appendix B
Weight Distribution