User Guide

059-547-00 Rev. F
1/3/07- 2 -
Spring Eye Bushing Replacement:
1. Remove the old bushings from the spring eyes,
driving them out with a suitable drift punch. Make
sure the spring eyes are clean and free from
excessive wear, burrs and sharp edges before
proceeding. Springs that have been damaged in
any way must be replaced.
2. Drive the new bronze bushings into the spring
eyes. The preferred method is to use a piloted
punch that closely fits the inside diameter of the
bushing. If a punch is not available, a 9/16" bolt
can be substituted. Place the bushing squarely
against the spring eye, insert the punch (or bolt)
into the bushing and drive it into place by firmly
striking the punch (or bolt) with a suitable hammer.
CAUTION
Striking the bronze bushing directly with a
hammer may deform the inside diameter and
prevent reassembly of the bolts.
REASSEMBLY
Tandem Axle Suspension:
Note: Some trailer designs or tire sizes may prevent
easy access to the grease fittings when assembled in
the suggested fashion. The user may choose to
assemble the spring attaching bolts and shackle link
assemblies from the opposition direction. This will
place the grease fittings on the inboard side of the
frame. OR The standard ¼"-28 straight grease fittings
can be removed and replaced with an angled fitting.
These fittings should be available at most automotive
parts store.
1. Slide the front and rear axles into position under
the frame hangers. Starting with the front axle, lift
the front ends of the springs and position them
between the legs of the front hangers with the bolt
holes aligned.
2. Insert the lubricated spring eye bolts through the
outside leg of the hanger, the spring eye and start
it through the inside leg of the hanger.
CAUTION
Note the specific radial orientation of the
grease holes in the illustrations. Failure to
orient the grease holes as shown may restrict
the free flow of lubricant and lead to excessive
wear.
3. Read and observe the following cautions before
driving the bolts into place.
CAUTION
DO NOT HAMMER directly on the grease fitting.
Striking the fitting will cause damage and
render it inoperable
CAUTION
Attempts to pull the bolt into place with an
impact wrench may strip the threads or cause
the bolt to spin and damage the hanger hole
and/or bolt spline.
4. Use a suitable hammer to drive the bolt into place.
To drive the bolts in, place a small piece of pipe or
steel tubing against the head of the bolt. The tube
should be approximately 3/8" inside diameter to
encircle the grease fitting in the head of the bolt.
Strike the end of the tube squarely and firmly.
Avoid glancing blows.
5. Continue driving the bolts into the hangers until the
bolt heads are seated against the hanger surface.
Install the flanged locknut onto the bolt threads
with the flanged side of the nut toward the hanger.
Tighten the nuts to 30 - 50 ft. lbs. The nut should
be seated against the shouldered bolt end.
6. Place the rear ends of the rear axles springs
between the legs of the rear hangers. Insert the
lubricated spring eye bolts through the outside leg
of the hanger, the spring eye and start it through
the inside leg of the hanger.
CAUTION
Note the specific radial orientation of the
grease holes in the illustrations. Failure to
orient the grease holes as shown may restrict
the free flow of lubricant and lead to excessive
wear.
7. Repeat the steps #4 & 5.
8. Install the new equalizers by placing them inside
their center hangers, align the center hole of the
equalizer to the holes in the hanger and insert the
non-lubricated bolt. Install the flanged locknut onto
the bolt threads with the flanged side of the nut
toward the hanger. Tighten the nuts to 30 - 50 ft.
lbs. The nut should be seated against the
shouldered bolt end.
9. Attach the shackle link/bolt assemblies to the
equalizers and spring eyes. The axles must be
lifted into their normal operating position with the
spring eyes above the lower holes in the
equalizers. Insert the shackle link/bolt