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HN
®
FR Series
SECTION 10
Troubleshooting Guide
CONDITION
Suspension has harsh or
bumpy ride
Vehicle leans
Irregular tire wear
Information contained in this literature was accurate at the time of publication. Product changes may have been made after the copyright date that are not refl ected.
17730-285 Rev A 12-12
Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • parts@eprogear.com
HN
FR SERIES
®
POSSIBLE CAUSE
Incorrect auxiliary spring adjustment
Damaged auxiliary spring assembly
Damaged bolster spring assembly
Incorrect auxiliary spring adjustment
Damaged auxiliary spring assembly
Damaged bolster spring assembly
Incorrect axle alignment
www.hendrickson-intl.com
Truck Commercial Vehicle Systems
800 South Frontage Road
Woodridge, IL 60517-4904 USA
© 2012 Hendrickson USA, L.L.C. All Rights Reserved
CORRECTION
Adjust auxiliary spring to proper setting. See Auxiliary Spring
Adjustment in the Preventative Maintenance Section of this
publication.
Replace auxiliary spring assembly.
Replace bolster spring assembly.
Adjust auxiliary spring to proper setting. See Auxiliary Spring
Adjustment in the Preventative Maintenance Section of this
publication.
Replace auxiliary spring assembly.
Replace bolster spring assembly.
Align axles. Refer to vehicle manufacturer's specifi cations.
1.866.755.5968 (Toll-free U.S. and Canada)
1.630.910.2800 (Outside U.S. and Canada)
Fax 1.630.910.2899
Printed in United States of America
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