Listed below are items that can be checked when motorhome is in for
periodic maintenance.
Note: Never attempt to service air suspension on a motorhome with air
bags inflated.
• Inspect O.D. of air springs. Check for signs of irregular wear or heat
cracking.
• Inspect air lines to make sure contact doesn't exist between air line and
O.D. of air springs. Air lines can rub a hole in an air spring very quick-
ly.
• Check to see that there is sufficient clearance around complete circum-
ference of air spring while at its maximum diameter.
• Inspect O.D. of piston for buildup of foreign materials. (On a reversible
sleeve style air spring, piston is bottom component of air spring.)
• Correct ride height should be maintained. All motorhomes with air
springs have a specified ride height established by manufacturer. This
height should be maintained within 1/4". This dimension can be
checked with vehicle loaded or empty.
• Leveling valves (or height control valves) play a large part in ensuring
that total air spring system works as required. Clean, inspect and
replace if necessary.
• Make sure you have proper shock absorbers and check for leaking
hydraulic oil and worn or broken end connectors. If a broken shock is
found, replace it immediately. Shock absorber will normally limit
rebound of an air spring and keep it from overextending.
• Check tightness of all mounting hardware (nuts and bolts). If loose,
tighten. Do not over-tighten.
Approved cleaning method is to use soap and water, methyl alcohol,
ethyl alcohol and isopropyl alcohol. Non-approved cleaning method
includes all organic solvents, open flames, abrasives and direct pressurized
steam cleaning.
WARNING: Do not drive the motorhome with air bags deflated.
Driveline angle does change and damage to the motorhome may occur.
Chassis Information
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EXECUTIVE
7•216
CHECKLIST -
PREVENTATIVE
MAINTENANCE
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