-67-
Suspensions
Inspection and Replacement
All the components of your suspension system should be visually inspected
at least every 6,000 miles for signs of excess wear, elongation of bolt holes,
and loosening of fasteners. Whenever loose or replaced, the fasteners in your
suspension system should be torqued as detailed in the charts below. All wet
bolts and equalizers should be greased every 3,000 miles.
CAUTION
You must follow the maintenance procedures to prevent damage
to important structural components. Damage to certain structural
components such as wheel bearings can cause the wheel to come
off of the axle. Loss of a wheel end while the trailer is moving can
cause you to lose control and lead to an accident, which can result in
serious injury or death.
Suspension Fastener Torque Values
Torque (Ft. Lbs.)
Item Min Max
3/8" U-Bolt 30 50
7/16" U-Bolt 45 70
1/2" U-Bolt 70 80
1/2" U-Bolt/Hex Nut 45 70
1/2" Flange Nut 70 80
9/16" U-Bolt 65 95
5/8" U-Bolt 100 120
Non shoulder type with 9/16" threads
Shackle Bolt
Snug t only. Parts must rotate freely. Locking nuts
Spring Eye Bolt or cotter pins are provided to retain nut-bolt
Equalizer Bolt assembly.
Shoulder Type 30 50
Shackle Bolt with 7/16" threads
Worn spring eye bushings, sagging springs, or broken springs should be replaced
using the following method.
1. Support the trailer with the wheels just off the ground.
To Next Page
Loading...