User Guide

059-547-00 Rev. F
1/3/07- 3 -
subassembly into both the equalizer and spring
eye at the same time.
10. Slide the plain shackle links onto the bolt ends that
protrude through the springs and equalizers. Install
the flanged lock nuts onto the bolts and tighten to
30-50 ft. lbs.
11. Check the suspension for freedom of movement by
lifting either of the axles. When one axle is lifted,
the other should move downward and should
return to its normal position when the lifting force is
released.
12. Lubricate all the grease fittings using a Lithium
complex soap grease, NLGI No. 2 such as Mobile
Oil Company Mobilgrease HP or equivalent. Pump
the grease in until it begins to show at the ends of
the bronze bushings. For best results, the
suspension should be lubricated every 3,000
miles.
13. Reinstall the tire/wheel assemblies, following the
instructions provided by the manufacturer.
REASSEMBLY
Triple Axle Suspension:
1. Slide the front, center and rear axles into position
under the frame hangers. Starting with the front
axle, lift the front ends of the springs until they are
positioned between the legs of the front hangers
and are aligned to the bolt holes.
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 treads 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" diameter inside 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. Install the new front equalizer by placing it inside
the center hanger, align the center hole of the
equalizer to the holes in the hanger and insert the
non-lubricated bolt. The yoke end of the equalizer
must be toward the rear of the vehicle.
7. Continuing with the center axle, lift the front ends
of the springs until they are positioned in the yoke
ends of the front equalizers and are aligned to the
bolt holes. Insert the lubricated bolts through the
holes taking care to orient the grease holes as
previously noted. Assemble and tighten the nuts to
30 - 50 ft. lbs. The nuts should be seated against
the shouldered bolt ends.
8. 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. Make sure the grease
holes are oriented as previously noted. Assemble
and tighten the nuts to 30 - 50 ft. lbs. The nuts
should be seated against the shouldered bolt ends.
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
subassembly into both the equalizer and spring
eye at the same time.
10. Slide the plain shackle links onto the bolt ends that
protrude through the springs and equalizers. Install
the flanged lock nuts onto the bolts and tighten to
30-50 ft. lbs.
11. Check the suspension for freedom of movement by
lifting any one of the axles. When one axle is lifted,
the others should move downward and should
return to their normal position when the lifting force
is released.
12. Lubricate all the grease fittings using a Lithium
complex soap grease, NLGI No. 2 such as Mobile
Oil Company Mobilgrease HP or equivalent. Pump
the grease in until it begins to show at the ends of
the bronze bushings. For best results, the
suspension should be lubricated every 3,000
miles.
13. Reinstall the tire/wheel assemblies, following the
instructions provided by the manufacturer.