2010 Kenworth T440/T470 Body Builder Manual

Section 6
Body Mounting
FRAME INFORMATION
Frame information provided is per rail, some specifi cations are written for RBM requirements per pair of rails. Make sure
to know the requirement before deciding on the frame rail.
TABLE 6-1. Single Steel Rails
Rail Height Flange Width Web Thickness Section Modulus RBM (in lbs) Weight (lbs/in)*
H W T S R W
10 - 5/8” x 3 -1/2” x 5/16” 14.80 1,776,000 2.90
10 - 3/4” x 3 -1/2” x 3/8” 17.80 2,132,000 3.46
10 - 11/16” x 3 -1/2” x 1/2” 22.35 2,683,000 4.53
11 - 5/8” x 3 -7/8” x 3/8” 21.43 2,572,000 3.80
* Per pair of rails.
TABLE 6-2. Inserted Steel Rails
Rail Height Insert Material Section Modulus RBM (in lbs) Weight (lbs/in)*
10 - 5/8” Single 9-7/8”x 2-7/8” x 1/4” 24.37 2,925,000 4.96
10 - 3/4” Single 9-7/8”x 2-7/8” x 1/4” 27.33 3,280,000 5.53
11 - 5/8” Single 10-3/4”x 3-1/2” x 3/8” 39.20 4,704,000 7.28
* Per pair of rails.
CRITICAL CLEARANCES
Rear Wheels and Cab
CAUTION:
Insufficient clearance between rear tires and body structure may cause damage to the
body during suspension movement. Allow at least 8 inches clearance (See Figure 6–1.)
Normal suspension movement could cause contact between the tires and the body. To prevent this, mount the body so
that the minimum clearance between the top of the tire and the bottom of the body is 8 inches (203 mm). This should be
measured with the body empty. See Figure 6–1.
FIGURE 6-1. Minimum Clearance Between Top Of Rear Tires And Body Structure Overhang.
CAUTION:
Maintain adequate clearance between back of cab and the front (leading edge) of mounted
body. Failure to comply may result in equipment damage. See Figure 6–2.
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6-2