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out or break on rebound. Broken leaves may make the vehicle hard to handle or permit the axle to shift out of line. Weakened
springs may break causing difficult steering.
The front springs are interchangeable, as are the two rear.
The front ends of the front springs and the rear ends of the rear springs are shackled, using “U” type shackles with threaded
bushings. The rear ends of the front springs and the front ends of the rear springs are bronze bushed and pivoted on bolts in the
brackets mounted on the frame.
The spring shackle threaded bushings use right and left hand threads, depending upon where they are to be used. Six bushings
are used with right hand threads and two with left hand threads. For identification the right hand threaded type have plain
hexagon heads. The left hand have a groove cut around the heads.
The two left hand threaded shackles can be identified by a small forged boss on the lower shank of the shackle. They are used
at the left front and the right rear springs with the left hand threaded end down at the spring eyes.
The bushings are anchored solidly in the frame brackets and spring eyes and the oscillation taken between the threads of the
“U” shackle and the inner threads of the bushings. The lubrication of the shackle bushings is very important and should not be
neglected, or excessive wear of the bushings and “U” shackles will occur.
When making installation of a new “U” shackle or bushing, follow the procedure below:
The shackles are installed with the bushing hexagon heads to the outside of the frame. Install the shackle grease seal and
retainer over the threaded end of the shackle up to the shoulder. Insert the new shackle through the frame bracket and the eye
of the spring. Hold the “U” shackle tightly against the frame bracket and start the upper bushing on the shackle, care being
taken when it enters the thread in the frame, that it is not cross-threaded. Screw the bushings on the shackle about halfway, and
then start the lower bushing, hold the shackle tightly against the spring eye and thread this bushing about halfway, then
alternating from top bushing to lower bushing, turn them in until the head of the bushing is snug against the frame bracket and
the bushing in the spring eye is 1/32” (.79 mm.) away from the spring measured from the inside of the hexagon head to the
spring. Lubricate the bushings with high pressure lubricant and then try the flex of the shackle, which should be free. If the
shackle is tight, it will cause spring breakage and it will be necessary to rethread the bushings on the shackle.
SHOCK ABSORBERS.
The shock absorbers are of the direct action type giving two-way control, however they are not adjustable. They
dampen spring action, as the vehicle passes over irregularities in the road.
The shock absorbers are mounted on rubber bushings at both top and bottom. Should squeaks occur in the
bushings, add a flat washer on the mounting pins to place the bushings under greater pressure and prevent
movement between the rubber and metal parts.
DO NOT USE mineral oil to remove squeaks.
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