operators_manual

• 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 250.
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
Axle Lubrication
Refer to the axle manufacturer's operator's
manual for lubrication specifications and
service intervals.
Kingpin Lubrication
Lubricate with approved lubricant.
Lubricate knuckle thrust bearings, knuckle
pins, and tie rod ends. Lack of lubrication
causes premature wear and hard steering.
Lubrication schedule may be shortened if
necessary
.
Suspension Lubrication
Each standard spring anchor pin has a
grease fitting. Pressure lubricate spring
pins as specified. At regular intervals, the
spring leaves may be lubricated with a
rust-inhibiting oil applied with a spray gun
or brush. Depending on your suspension,
lubricate all spring pins until grease flows
out of both ends of the bushing. Look for
signs of rust or water in the flushed grease.
If a pin will not accept grease, it should be
removed, cleaned, and inspected.
MAINTENANCE - Front Axle and Suspension
224 Y53-6096-1C1 (09/20)
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