REAR AXLE AND SUSPENSION
NOTE
Failure to follow these recommenda-
tions could void warranty.
Visual Inspection
For all vehicles, mandatory
maintenance procedures include
retightening of U-bolts and complete
inspection. However, even with proper
maintenance, many factors affect the
service life of springs and suspension
components, such as: fatigue, vehicle
gross weight, type of load, road
conditions, and vehicle speed.
It is
important that U-bolts remain tight.
Severe use of your vehicle can cause
them to loosen faster. But all vehicles
need to have their U-bolts checked and
tightened regularly. Be sure someone
with the proper training and the right
tools checks and tightens the U-bolts
on your vehicle.
• After the rst 500 miles (800 km) of
operation, inspect the suspension
periodically, as noted below:
• Visually check for loose or missing
fasteners, cracks in hanger, or
axle connection brackets.
• Check that springs are centered in
hangers and in good condition.
• Check for cracks, wear marks,
splits, or other defects on the
surface of the spring.
• Replace defective parts. Because
repaired springs cannot be
fully restored to their original
service life, replace the complete
assembly if cracks or other defects
are detected.
• After replacement of any part or
discovery of loose components,
check the torque of all fasteners.
• New springs settle-in after the
vehicle's initial service, causing
the U-bolts to become loose.
5
(04/13) Y53-6047–2C 5-125
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