operators_manual

• 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
few examples include the alternator,
engine Electronic Control Unit (ECU),
transmission ECU, ABS ECU, navigation
devices, diagnostic devices, and
monitoring devices.
Fifth Wheel Monthly Maintenance
Proper preventive maintenance is essential
to trouble-free service and safe operation
of the fifth wheel.
• Refer to specific manufacturer's
literature for any special
instructions.
• Steam clean the fifth wheel.
• Check lock guard operation using a
commercial lock tester.
• Clean and oil all moving parts.
• Lubricate the lock mechanism with a
lithium-base grease.
• All grease fittings (especially those
which grease the top surface of the
fifth wheel).
Fifth Wheel Bi-Annual Maintenance
Proper preventive maintenance is essential
to trouble-free service and safe operation
of the fifth wheel.
NOTE
Whenever possible, torque all frame fasten-
ers on the nut end, not the bolt head.
• Refer to specific manufacturer's
literature for any special
instructions.
• Remove fifth wheel from vehicle.
Refer to the Shop Manual, "Fifth
Wheel Removal."
• Steam clean the fifth wheel and
mounting brackets.
• Check all moving parts for
excessive wear or damage. Replace
all worn or broken parts.
• Complete two-month service
procedure.
• Install fifth wheel. Refer to the Shop
Manual, "Fifth Wheel Installation."
Tighten all frame fasteners with a torque
wrench. See Frame Fastener Torque
Requirements on page 214.
Sliding Fifth Wheels
Lubricate bearing surface of support
bracket through the grease fittings on the
MAINTENANCE - Frame
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