Eager Beaver 20 Ton XPT, Service Manual

Page: 42 / 59

Rocker Bushings
3. The recommended torque values for the rocker bushing clamp bolts are different for each model.
a. If you are working on the 7700 model suspension, the 5/8" – 18 rocker step bolts should be tightened to a
dry
level of
170 lb-ft of torque.
See Figure 3a.
b. If you are working on the 9700 model suspension, the single 1 1/8" – 7 rocker bolt should be tightened to a
dry
level of
790 lb-ft of torque.
See Figure 3b.
Fig. 3a
5/8"-18 rocker step bolts
Tighten to a dry level of 170 lb-ft of torque
Fig. 3b
1 1/8" rocker bolt
Tighten to a dry level of 790 lb-ft of torque
During your check, if the bolts are loose a detailed inspection of the rocker is important to ensure that no structural damage
has occurred. One way this can be done is by raising the trailer until the trailer weight is taken off the springs. If the rocker is
displaced or if the joint is loose, then the rocker should be removed and the rocker and/or rocker bushing be replaced.Again,
visually inspect the condition of all rocker/rocker hanger assembly components and replace if visible wear is present.
Hangers
4.
Check all of the spring retainer bolts found in the rockers and rear hangers. A dry value of 50 lb-ft of torque should be
maintained on all of these bolts. See Figure 4.
Fig. 4
Spring retainer bolts
Tighten to a dry level of 50 lb-ft of torque
Loose fasteners that are allowed to operate for any period of time will result in irreversible suspension damage and possible loss
of vehicle control.
Retightening a worn fastener will not correct a situation created by loose operation!
October 2005–CA
HUTC_554_7700_9700.qxd 10/21/05 4:19 AM Page 1