35
MAC 6000 Hydronic Heater
Trailer Axle Manual
2106 East Indiana Ave., Bismarck, ND 58504 U.S.A. • www.macheaters.com • +1-800-272-4604
TORSION SUSPENSION SYSTEM
1. The Lippert Components, Inc. Torsion Suspension system is designed to offer
superior qualities over leaf spring technology. The Lippert Components, Inc.
Torsion Suspension system is bracketed to the trailer’s frame and housed inside
the trailer axle’s tube.
2. The spindle is connected to a swing arm, the swing arm is connected to a
square inner bar that is sheathed in rubber and as the swing arm rotates and
experiences the torque and resistance of driving conditions, the characteristics
of the rubber absorb and distribute the load providing benefit over leaf spring
suspensions.
3. The Lippert Components, Inc. Torsion Suspension system requires very little
attention in regards to maintenance. Normal inspection of the entire Lippert
Components, Inc. Trailer Axle system can be applied to the Torsion Suspension
system. See inspection procedures for system components in this manual.
Fig.7
Front
Hanger
Shackle
Link
Center
Hanger
Rear
Hanger
Shackle
Bolts
Equalizer
Tie Plate
Spring Axle Torque Specifications
Bolt Type Axle Capacity Maximum Torque
U-Bolts
2K 25 ft-lb
3.5K with
½ "
50 ft-lb
5.2K 65 ft-lb.
6-8K 90 ft-lb.
Minimum Torque Maximum Torque
Shackle Bolts 30 ft-lb 50 ft-lb
Electric Brake Maintenance
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