Troubleshooting the Country Coach DynoMax Chassis Suspension Air Springs – Part 3

Two other installments of Problems/Possible Causes/Remedies for Air Spring issues published earlier. These handy tips are found withing the User's Guide of the Country Coach Motorcoach. These in particular come from the Affinity C-12 DynoMax chassis User's Guide

Problem: Air Spring Failure Due to Fatigue
Possible Causes: Continual or repeated over extension of the air spring.
Remedy: Inspect the shock absorber mountings and bracket. Reconnect loose parts and replace any defective parts. Check the adjustment of the height control valves according to the Ride Height Adjustment procedures in your Owner's Guide.

Problem: Air Spring fails to fully deflate when all weight is removed.
Possible Causes: Restricted air line between the height control valve and the air spring.
Remedy: Disconnect the eight Control Valve linkage and rotate the actuating lever to the 45 degrees down position. If the air spring remains inflated, check for pinced or blocked lines. Clean or replace blocked lines and replace defective valves. (Again, check the Ride Height Adjustment section in the Owner's Guide.)

Problem: Shock Absorber failures.
Possible Cause: Over extension / compression.
Remedy 1: Check to see if perhaps the shock brackets were reinstalled in the wrong location.
Remedy 2: Is is at the proper ride height? Check the Ride Height Adjustment section of the owner's guide.
Remedy 3: Improper replacement brakes may have been installed.

Problem: Excessive Tire Wear.
Possible Cause: Axles or steering improperly aligned.
Remedy 1: Realign wheels
Remedy 2: Worn Pivot Connection. Install new bushing and bolt.

Problem: Front pivot connection worn prematurely.
Possible Cause: Loose/preloaded pivot connection.
Remedy 1: Pivot connection rod bolt improperly torqued. Inspect bushing sleeve for wear. Replace bushings and bolt. Torque to specified foot pounds at ride height.

For light reading (translation: very instructive reading), I always recommend your Country Coach User's Manual is always the first go to source of info when you're needing to deal with a particular coach issue, be it air springs related or otherwise.

Country Coach did a wonderful job of providing support documents, schematics, manuals etc in the "Black Box" of key information that shipped with every coach that rolled onto First Avenue in Junction City, OR to a dealer location or to a new owner.

Today a new Country Coach--Country Coach Corporation--exists on some of the acreage of the original Country Coach Inc campus. Country Coach Corporation is a full service center, preowned coach dealership, and in the future intends to again build a motorhome with the Country Coach moniker gracing its exterior. Keep up on this company at countrycoach.com.