FRAME
FRAME
Introduction
WARNING!
Do not cut, splice or weld frame rails or
drill through the top or bottom anges
of the rails. These operations could af
-
fect frame rail strength leading to a fail-
ure resulting in an accident. Rail fail-
ures resulting from such modications
are not warrantable. Failure to com
-
ply may result in death, personal injury,
equipment or property damage.
Emergency Welding
WARNING!
Frame welding is NOT recommended.
The high heat of welding nullies the
special heat treatment of the rails,
greatly reducing the tensile strength
of the frame rail. If a frame member
becomes cracked from overloading,
fatigue, surface damage or a collision,
the only permanent repair is to replace
the damaged frame member with a
new part.
In an
emergency, a temporary repair
may be performed. Observe the
following precautions to protect
electronic systems during welding
operations. Emergency welding
procedures are further explained in the
maintenance manuals. Please refer to
the ordering information on the back
cover to obtain a maintenance manual.
Welding
Precautions
In the
event of emergency welding of a
frame rail and when welding any other
part of your truck or any component
attached to your truck, observe the
following precautions before welding:
• Disconnect all electronic devices.
It is not possible to list all of the
electronics that could be affected,
but a few examples include the
following: alternator, engine
Electronic Control Unit (ECU),
transmission ECU, ABS ECU,
navigation devices, diagnostic
devices, and monitoring devices.
• Disconnect battery cables and
insulate them from the vehicle.
• Do not use the ECU or engine
ground stud for the ground of the
welding probe.
• Ensure that the ground connection
for the welder is as close to the
5
(04/13) Y53-6047–2C 5-103
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