Chassis Information --- Section 10
The Executive 2005
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Lubricating greases are made from different base compounds giving the grease different lubricating
consistencies, properties and maximum operating temperatures. Most containers list the base compound
and maximum operating temperature usually listed as melting point or drip point. Lubricating compo-
nents, such as brake component for example, require a high temperature special base compound
grease. Lubricating this type of component with other than specified grease type will result in inade-
quate lubricating qualities resulting in component malfunction or failure.
INSPECTION:
When performing any scheduled maintenance, inspect the area around where you
are working. For example, changing the oil, look at the rear differential. Inspect
for visual signs of fluid leaks.
Most fluids and lubricants have a distinct odor, which can be used to detect early signs of trouble.
Generally, odors are most detectable soon after parking. Unusual sounds are another method of detect-
ing a problem early. There are many types of sounds that are normal, such as the cyclic purging of the
air dryer. Become familiar with the different sounds. If something sounds odd, smells peculiar or
looks unusual investigate the situation.
Greasing:
Thoroughly clean all Zerk grease fittings before applying new lubricant.
Keep paper towels or disposable rags handy when greasing. When lubricating
items such as drive shafts and steer axle components, continued grease applica-
tion is generally required until new grease appears at exit points.
Some items use sealed boots around the component to prevent moisture
intrusion. When greasing these types of components, care must be given to
prevent excess lubricant pressure from rupturing the seal.
W
ARNING:
Always chock wheels before going underneath the motorhome.
Brake actuating components require lubrication to keep the actuating components freely
operating. Avoid contaminating brake linings with lubricant. Particular care and attention to details
should be taken when lubricating brake actuating components. Wheel removal may be necessary to
gain access the grease fittings.
To apply grease:
• Clean the grease fitting. Initially operate grease gun until new lubricant discharges
from nozzle, then wipe nozzle clean to avoid introducing contaminants into the compo-
nent.
• Snap nozzle onto grease fitting.
• Nozzle must remain in line with the grease fitting during the application process. If
the nozzle is not in line, lubricant will collect around nozzle and grease fitting, failing to
lubricate the component.
• Wrap the nozzle with a paper towel or rag to prevent contamination and accidental soiling
of other areas.
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