Kenworth K270, Body Builder'S Manual

Page: 52 / 96

5-7
Section 5
Frame Layouts and
Body Mounting
WARNING! Do not allow the frame rails or
flanges to deform when tightening the U–bolts. It will
weaken the frame and could cause an accident. Use suitable spacers made of steel
or hardwood on the inside of the frame rail to prevent collapse of the frame
flanges.
Use a hardwood spacer between the bottom
flange and the U–bolt to prevent the U–bolt from notching the frame flange.
See Figure 5-9 .
Body Structure
Wood Sill 0.5” (12mm) Minimum
Truck Frame
Frame Rail Spacer
(Fabricated Steel or
Hardwood)
U-Bolt
U-Bolt Spacer (Hardwood)
Figure 5-9. Acceptable U-Bolt Mounting with Wood and Fabricated Spacers
WARNING!
CAUTION:
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 wir-
ing could result in loss of braking, fuel leaks, electrical overload or a
fire. Carefully inspect the in-
stallation to ensure adequate clearances for air brake lines, fuel lines, and wiring.
See Figure 5–10.
Mount U–bolts so they do not chafe on frame rail. Failure to do so could result in premature wear
of the U-bolt or frame rail.
Frame Rail
Air Lines and Wiring
Harness
Check Clearance
Space for Air
Lines and Wiring
U-Bolt
Frame Rail Spacer
(Hardwood or Steel
U-Bolt Spacer
Figure 5-10. Clearance Space for Air Lines and Cables