Eager Beaver 20 Ton XPT, Service Manual

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1/2"-20 radius rod clamp bolt
Tighten to a dry level of 85 lb-ft of torque
5/8"-18 radius rod clamp bolt
Tighten to a dry level of 170 lb-ft of torque
1"-14 radius rod attachment bolt
Tighten to a dry level of 720 lb-ft of torque
Now let’s look closely at the maintenance requirements for each of the suspension’s main component groups.
Axle Clamp Group and Springs
1.
Check the torque on the U-bolt nuts by alternately tightening opposing corners of the clamp assembly. See Figure 1.
a. When using 7/8" – 14 U-bolts, the nuts should be torqued to a dry level of 470 lb-ft.
b. When using 3/4" – 16 U-bolts, the nuts should be torqued to a dry level of 420 lb-ft.
Loose operation of this bolt can result in wear requiring that new components be installed to avoid structural damage. During
your visual inspection, if you observe any visible wear or loosening in the bushing, it is imperative that you immediately replace
the radius rod bushing and bolt. Failure to replace these components will result in damage to the hanger, spring seat, and/or
radius rod.
2b.
Next check the 1/2" – 20 radius rod clamp bolt, which should be tightened to a dry level of 85 lb-ft of torque.The 5/8" –
18 radius rod clamp bolt should be tightened to a dry level of 170 lb-ft of torque. See Figure 2. If the clamp bolt has not
been properly maintained, then wear between the radius rod screw and the eye end may be observed. If so, then the entire
radius rod must be replaced.
Simply retightening or replacing the clamp bolt will not correct the problem.
Always carefully inspect the spring and axle clamp components for any signs of wear or cracks, and replace if visible wear or
cracks are present.
Radius Rods
2a. The 1" – 14 radius rod attachment bolts at the hangers and spring seats should be tightened to a
dry
level of 720 lb-ft of
torque on both the adjustable and non-adjustable radius rods.
See Figure 2.
®
eries – Maintenance Procedures
Fig. 1
Move to opposite corner
1st
3rd
4th 2nd
Fig. 2
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