2010 Kenworth T440/T470 Body Builder Manual

Section 6
Body Mounting
BODY MOUNTING USING U–BOLTS
Spacers
If the body is mounted to the frame with U–bolts, use a hardwood sill (minimum 1/2 inch (12 mm) thick) between the frame
rail and body frame to protect the top surface of the rail fl ange.
WARNING:
Do not allow the frame rails or flanges to deform when tightening the U–bolts. It will weaken
the frame. Use suitable spacers made of steel or hardwood on the inside of the frame
rail to prevent collapse of the frame flanges. Failure to comply may result in personal
injury, death, equipment or property damage.
Use a hardwood spacer between the bottom fl ange and the U–bolt to prevent the U–bolt from notching the frame fl ange.
See Figure 6–7.
Body Structure
U-Bolt
Wood Sill 0.5 (12) Minimum
Truck Frame
Frame Rail Spacer
(Fabricated Steel or
Hardwood)
U-Bolt Spacer (Hardwood)
FIGURE 6-7. Acceptable U-Bolt Mounting with Wood and Fabricated Spacers [inch (mm)]
WARNING:
Do not allow spacers and other body mounting parts to interfere with brake lines, fuel
lines, or wiring harnesses routed inside the frame rail. Crimped or damaged brake lines,
fuel lines, or wiring may result in loss of braking, fuel leaks, electrical overload or a fire.
Carefully inspect the installation to ensure adequate clearances for air brake lines, fuel
lines, and wiring. Failure to comply may result in personal injury, death, equipment or
property damage. See Figure 6–8.
CAUTION:
Mount U–bolts so they do not chafe on frame rail. Failure to do so may result in
premature wear of the U-bolt or frame rail.
12/09
6-6