operators_manual

few examples include the alternator,
engine Electronic Control Unit (ECU),
transmission ECU, ABS ECU, navigation
devices, diagnostic devices, and
monitoring devices.
Related reference
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
fasteners 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 275.
Sliding Fifth Wheels
Lubricate bearing surface of support
bracket through the grease fittings on the
side of the fifth wheel plate. Use a water
resistant lithium-base grease.
NOTE
The plate must be lifted up slightly to
relieve the weight of the bracket while
applying grease.
Front Axle and
Suspension
Lubrication and inspection of front axle
assemblies.
Axle Lubrication
Refer to the axle manufacturer's operator's
manual for lubrication specifications and
service intervals.
MAINTENANCE - Front Axle and Suspension
248 Y53-6047-2HEN (03/18)
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