operators_manual

CAUTION
If anyone ever pours gasoline into your
fuel tank, drain the entire system. Oth-
erwise, the pump and engine will be
damaged. Don’t try to dilute the gaso-
line by adding diesel fuel (See Warn-
ing above).
Fuel Filters
See Engine Manufacturer’s Operator
Manual provided with this chassis.
Frame
WARNING
Do not cut, splice or weld frame rails
or drill through the top or bottom flang-
es of the rails. These operations could
affect frame rail strength leading to a
failure resulting in an accident. Rail
failures resulting from such modifica-
tions are not warrantable. Failure to
comply may result in death, personal
injury, equipment or property damage.
WARNING
Frame welding is NOT recommended.
The high heat of welding nullifies the
special heat treatment of the rails,
greatly reducing the tensile strength of
the frame rail. If a frame member be-
comes cracked from overloading, fati-
gue, surface damage or a collision, the
only permanent repair is to replace the
damaged frame member with a new
part.
Emergency Welding
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.
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
weld point as possible. This
ensures maximum weld current
and minimum risk to damage of
electrical components on the
vehicle.
Painting
Do not electrostatically paint your truck or
any component on your truck without first
removing all of the electronic components
from the truck. It is not possible to list all of
the electronics that could be affected, but a
MAINTENANCE - Frame
Y53-6047-2HEN (03/18) 247
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