Chassis Information --- Section 10
The Executive 2005
433
AIR SPRING INSPECTIONS
Listed below are items that can be checked when the motorhome is in for periodic maintenance.
NOTE:
Never attempt to service the air suspension on a motorhome with the “air spring”
inflated.
• Inspect the Outer Diameter (OD) of the air springs. Check for irregular wear or heat
cracking.
• Inspect the air lines to make sure contact does not exist between the air line and the OD of
the air springs. Air lines can rub a hole in an air spring very quickly.
• Check to see that there is sufficient clearance around the complete circumference of the air
spring while at maximum diameter.
• Inspect the OD of piston for buildup of foreign materials. (On a reversible sleeve style air
spring, the piston is the bottom component of the air spring.)
• The correct ride height should be maintained. All motorhomes with air springs have a
specified ride height established by the manufacturer. This height should be maintained
within ¼ ". This dimension can be checked with the motorhome loaded or empty.
• The leveling valves (or height control valves) assist in ensuring the total air spring system
works as required. Clean, inspect and replace if necessary.
• Make sure to check shock absorbers for leaking hydraulic oil and worn or broken end con-
nectors. If a broken shock is found, replace it immediately. The shock absorber will nor-
mally limit the rebound of an air spring and keep it from over extending.
• Check the tightness of all mounting hardware (nuts and bolts). If loose, tighten. Do not
over-tighten.
Cleaning:
The approved cleaning method is to use soap
and water, methyl alcohol, ethyl alcohol and iso-
propyl alcohol. Unapproved cleaning methods
include all organic solvents, open flames, abrasive
and direct pressurized steam cleaning.
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